Sunday, March 6, 2011

Yahoo grabs search share from Google

As Google trips slightly, second-place Yahoo is there to pick up its lost share
While Google easily hung on to its first-place spot in the U.S. search engine market last month, Yahoo made a surprising, if slight, advance.
Google, long the heavily dominant player in the search market, captured 65.8% of the market in July, according to comScore, a market research company. However, the search engine giant slipped a little last month, dipping 0.4% from 66.2% in June.
Where did that 0.4% share go? Google can look to Yahoo for that.
The second-place search engine grabbed Google's lost share and took its U.S. search share from 16.7% in June to 17.1% in July.
Microsoft Bing has been steadily in third place since it was released a little more than a year ago, and it retains that spot with an 11% share -- the same amount it had in June.
Bing had better luck between May and June.
A June report from comScore noted that Bing showed more growth than rival Google, compared with the previous month. Bing, which had its first anniversary in late May, saw its search share in the U.S. market inch up from 12.1% in May to 12.7% in June.
In that same May-to-June period, Google lost a little ground, with its search share dipping from 63.7% in May to 62.6% in June.

Search Monkey falls victim to Yahoo-Microsoft search deal


As it starts transitioning to Microsoft's Bing search engine this week, Yahoo has decided to drop Search Monkey, a developer platform designed to let external coders create applications that enhance Yahoo search results.
Search Monkey, launched in May 2008, will be shut down on Oct. 1 when its developer tools, application gallery and related material will be taken offline, Yahoo said Tuesday.

"As a result, third party custom result apps, infobar apps, and data services will no longer appear on Yahoo's search results. For developers who wish to retain their code, please export it using your favorite copy/paste tool before then," wrote Yahoo product manager Natasha Fattedad.

Yahoo plans to start using Bing's back-end search engine for its U.S. and Canada search sites this week, under terms of a 10-year search partnership announced last year. It is asking webmasters to continue using its Site Explorer service while also becoming acquainted with the Bing Webmaster Center. Both are designed to let webmasters communicate their sites' structure to the Yahoo and Bing Web crawlers.
"To keep things simple, we will share site information you provide on Site Explorer with Microsoft during this transition period," Neal Sample, Yahoo's vice president of Social, Open, & Publishing Platforms, wrote in a separate blog post.

Through Search Monkey, results were enhanced on more than 60 percent of Yahoo result pages via images, links and additional information about listings, according to Fattedad. The platform helped users to narrow search results using filters.
Yahoo will still try to improve search results using structured data, but through a different tack, shifting focus to publishers' sites, Sample said.
"Yahoo Search is continuing to shift from a model where developers build lightweight apps to install on Yahoo to one where publishers enhance their own site markup to produce similar results. Yahoo Search results pages will continue to show enhanced result templates from websites' page markup and structured data feeds along with Microsoft's organic listings," Sample wrote.

Yahoo also plans to turn off the APIs (application programming interfaces) for MyBlogLog, a service that lets Web publishers create communities around sites by giving visitors the option of creating personal badges and identifying themselves.
"By the end of the year, these APIs will no longer be available. We encourage you to turn to our well-supported Social APIs. The Yahoo network now relies on this Social platform to power user profiles and social graph, relationships, activity streams, and more," Sample said.
Still under review are Yahoo's geographical, maps and local APIs, some of which will remain, while others will be discontinued by September, according to Sample.
Among the developer programs Yahoo plans to keep are BOSS (Build Your Own Search Service), which lets developers build a custom search engine, and YQL (Yahoo Query Language), a SQL-like language to query and call up structured data on the Internet.
Yahoo and Microsoft announced their search deal in July last year and began the implementation, estimated to take up to two years, in February after getting regulatory clearance in the U.S. and Europe.

The deal calls for Yahoo to rely on Bing for back-end search functions like crawling sites, indexing them and matching results to queries. Microsoft also got licensing rights to integrate some of Yahoo's core search technologies into Bing.
Microsoft will be in charge of self-service sales of pay-per-click text search ads. For the first five years of the deal, Microsoft will get a 12 percent commission of paid clicks on the search sites of Yahoo and of Yahoo Web publisher partners.
In turn, Yahoo will sell premium guaranteed search ads and handle individual relationships with the biggest advertisers, search marketing firms, resellers and their clients.

Microsoft's Bing taps into online coupon fever

Microsoft is responding to the online coupon frenzy by adding results about special deals to its Bing search engine, both on its desktop and mobile versions.
The new feature, provided in partnership with deal aggregator website The Dealmap, lets Bing serve up links to 200,000 coupons and offers from businesses in 14,000 U.S. cities.
The offers come from online coupon providers like Groupon, Living Social and Restaurant.com, Microsoft said on Thursday in a blog post.
The goal is to make it easier for Bing users "to discover, share and search for the best deals in your area -- all from one place," wrote Andy Chu, a Microsoft director of product management.
Online coupon sites have taken off in a big way in the past year, led by Groupon, a daily deals website founded in late 2008 that recently closed a funding round worth almost $1 billion after turning down a reported $6 billion acquisition offer from Google.
Yahoo and Google are developing their own services for deals and coupons.
Announced in November, Yahoo's program is called Local Offers and will provide deals, offers and coupons from local merchants. Yahoo's initial partners include Groupon, LivingSocial, DealOn, Zozi, Tippr, Coupons.com and Valpak.
Meanwhile, Google is testing a program with small businesses focused on pre-paid offers and vouchers, the company said recently.

Intel hopes to boost cloud gaming with ray tracing

A new technology from Intel called ray tracing could bring lifelike images and improved 3D effects to games on tablets and other mobile devices.
The chip maker is creating chips and rewriting games to use ray tracing, which generates accurate images by tracing paths of light and could lead to console-like gaming via the cloud, the company said in a podcast this week.

At some point in the future, after a new Intel chip is released, mobile device users will be able to play complex 3D games over the cloud using real-time ray tracing, which demands a lot of computing power, Intel said. Clusters of power servers with multiple CPUs and vector processing units could process tasks in parallel, with accurate images then being delivered to tablets and smartphones.
Tablets and smartphones are mostly used for casual gaming, but increasingly sophisticated hardware is making the devices capable of handling higher-resolution graphics. Apple's iPad 2 tablet, which was announced this week, has improved graphics capabilities compared to its predecessor, while LG's Optimus 2X smartphone can render 1080p video. A tablet using Nvidia's upcoming mobile chip called Kal-El was demonstrated playing an Xbox 360 game at last month's Mobile World Congress show.
Intel has rewritten the first-person shooter game "Wolfenstein," which looks more realistic with ray-tracing technology, said Daniel Pohl, an Intel researcher, in the podcast.
"We have a red car sitting at a courtyard, which has a very shiny reflective surface. That can be rendered very good ... because ray tracing can do very physically [accurate] modeling of reflections," Pohl said.

For example, ray tracing will let gamers use reflections off the car's surface as a mirror to see if snipers are approaching from the rear, Pohl said. Ray tracing could also add more visual detail such as shadows, which could help enhance 3D effects in a game.

Modern device screens employ millions of pixels and millions of rays are sent out for every pixel, which creates a challenge as a lot of processing power is needed, said John Owens, associate professor of Electrical and Computer Engineering at University of California at Davis, during the podcast.

Billions of rays may need to be continually bounced off objects to accurately sample the changing scenes in a game. Modeling becomes even more complex if a game has a lot of moving objects and changing scenes.

"The reason [ray tracing] isn't pursued in your normal graphics cards today or that most of your games aren't done through it is that actually doing that computation is very challenging," Owens said.

Intel is trying to address the challenge through an experimental server chip called Knights Ferry, which is based on the company's new MIC (many integrated core) architecture. The chip, which was announced in May at the International Supercomputing Conference, is designed for intensive graphics and high-performance computing.

The chip has 32 x86 cores with corresponding 512-bit vector processing units. The cores operate at a clock speed of 1.2GHz, and the chip supports OpenCL and Microsoft's DirectX, which are frameworks that include tools for parallel programming.

Knights Ferry also implements elements of the now defunct Larrabee chip, which was to be Intel's first graphics processor. The chip maker showed Larrabee's ray-tracing capabilities on-stage at the Intel Developer Forum in 2009 in a game titled "Enemy Territory: Quake Wars," but many audience members were underwhelmed by the limited scope of the demonstration.

The first commercial product based on MIC architecture will be a chip called Knights Corner, which the company said will include more than 50 cores. Intel will release the chip in the first half of next year, an Intel executive said on a podcast in late February. Use of ray tracing for mobile gaming hinges on that chip's release.

Building an inexpensive, high-performance PC for Windows 7


Microsoft is set to release its newest operating system, Windows 7, on October 22. "Oh no," you might be groaning, "not another Windows upgrade!"
Those of us who have been through one or more previous upgrades, from, say, Windows 98 to Windows XP or from XP to Vista, have learned that upgrades can be a painful process, fraught with hardware and software compatibility issues that create ongoing operational problems -- or worse, make a PC nonfunctional.
It's unlikely that the upgrade process will improve with Windows 7. Upgraders -- especially those making the leap to the 64-bit version of Windows 7 -- will most likely suffer through a slew of hardware, software and driver incompatibilities.
The simplest and quickest way to deploy Windows 7 will be on new hardware, avoiding the whole upgrade process. But instead of buying an off-the-shelf PC, I recommend that you build your own system. Building your own gives you the flexibility to get exactly what you want, and it creates a sense of accomplishment -- not to mention that for many of us, it's just plain fun.
One of the most time-consuming aspects of building your own, though, isn't actually putting the system together -- it's the process of navigating through the plethora of processors, motherboards, storage devices and video cards available today.
Minimum hardware specs for Windows 7
• 1GHz CPU
• 1GB of RAM
• 16GB of drive space
• DirectX 9-capable graphics card or integrated chip
Microsoft has provided some minimum specifications for Windows 7 (see box). But minimum specs, as they imply, offer minimum performance -- something most users would not be happy with.
I set out to build a desktop system that will run Windows 7 efficiently, support future upgrades and keep a lid on costs. What follows is an explanation of my component picks that I hope will be helpful to anyone else who wants to build a Windows 7 PC. (If you've got any suggestions, don't hesitate to let us know in our comments section.)

The prices given throughout the story are common "street" prices as shown on shopping comparison sites Pricegrabber, Google Product Search and mySimon in early August 2009. Any good shopper should be able to get the components for these prices or less.
Note: This article assumes you already know how to build a PC from scratch. If you need help, Lifehacker offers a good basic tutorial.

CPU
The most important component of a PC is the CPU. Selecting the proper processor can mean the difference between an expensive failure and an economical success. The market is saturated with CPUs, coming in at different price points, performance levels and thermal envelopes (the power required and heat generated by the processor). I took a look at what was available on the market today and combined that information with my experiences with the various CPUs I've tested in the past.

Related story
Windows 7 is designed to leverage multiple processors, so more processor cores are better. Choosing a quad-core over a dual- or single-core processor will deliver better performance while not increasing the price significantly.

Super high-end CPUs like the Intel Core i7 Extreme Edition 965 and 975 cost $1,000 or more -- far too expensive for the majority of users. Intel also offers three lower-cost, lower-performance quad-core CPUs under the i7 brand -- the 2.66GHz Core i7 920, the 2.93GHz Core i7 940, and the 3.06GHz Core i7 950 -- but they're still not cheap, ranging from $290 to $600. The Core i7 processors also require expensive support components, further increasing the total price of a Core i7-based PC.


AMD Phenom II x4 955
With economy in mind, I chose to use AMD's latest processor, the quad-core Phenom II x4 955 Black Edition. AMD's CPU runs at 3.2GHz and has a street price of around $250.

While not as fast as Intel's Core i7 in raw performance, AMD's CPU is significantly cheaper and outperforms similarly priced Intel CPUs. The 955 also supports overclocking and DDR3 RAM when used with a socket AM3 motherboard.

To increase the Phenom II x4 955's performance, I'll overclock it (run it at a higher clock speed than it is rated for). There are some dangers when overclocking -- you could void the warranty or even destroy the processor. That said, a little overclocking (a few MHz) can boost performance and maximize the value of the processor. (Tom's Hardware offers an excellent guide to overclocking AMD processors if you need instructions.)

Although the 955 is an AM3 socket chip, it is still backward compatible with AM2+ motherboards, which means that you could buy a low-priced discontinued board as a way to save money. In that case, however, you wouldn't be able to overclock the 955.
AMD offers several other processors under the Phenom name, which can save you a few extra dollars, but at the cost of performance. The other Phenom models widely available today range from the older 2.6GHz Phenom X4 9950, which goes for around $160, to the 3.0GHz Phenom II X4 945 at around $215.

Motherboard
Having selected the Phenom II x4 955 for the CPU, I wanted a motherboard with an AM3 socket and DDR3 RAM. Several manufacturers offer appropriate motherboards, ranging from an $85 Gigabyte GA-MA770T-UD3P to a $200 Asus M4A79T Deluxe ATX. The wide variation in price is due mostly to features and options. For example, the bargain-basement Gigabyte motherboard does not have onboard video and features only one PCI 2.0 slot.

Because I was looking to maximize value without sacrificing future upgrades or performance, I chose a motherboard that includes the latest chipset, offers plenty of expansion options, supports overclocking, and features onboard video as well as integrated sound. My choice: the $150 Asus M4A78T-E system board.
The M4A78T-E offers a plethora of connectivity options and onboard ports that should please even the most fickle of system builders. The board sports HDMI, DVI, VGA, USB, FireWire, Gigabit Ethernet and a slew of other connectors.

Asus M4A78T-E motherboard
In my experience, Asus has always offered high-quality products, with top-notch instructions and support. And system builders will appreciate Asus's specialized features that help to speed assembly, such as the Q-Connector kit, which simplifies the process of plugging in the various case LEDs and switches.

Graphics
When Windows Vista shipped, most experts advised PC buyers to get a discrete graphics card to handle its increased graphical demands. Thanks to motherboard manufacturers using more powerful integrated graphics processing units (GPUs) and better chipsets, however, the performance of onboard graphics has improved a great deal in the last year.
Today's onboard graphics paired with Windows 7 will offer a perfectly acceptable computing experience for most users, with enough oomph to watch HD videos and graphically intense presentations -- and you can save several hundred dollars by not buying a separate graphics card. If you decide to dive into the world of high-end gaming or video production later on, you can always add a graphics card to boost video performance.

Kingston Technology 2GB DDR3 RAM modules

RAM
RAM is the easiest component to choose here. I opted for a kit from Kingston Technology (model P/N KHX12800D3K2/4G) that comprises a pair of 2GB, 1600MHz DDR3 modules for a total of 4GB of RAM. This should prove enough to run the 64-bit version of Windows 7, as well as Virtual PC's XP compatibility mode, very efficiently. The Kingston kit goes for around $115.

CPU cooler
It's important to pick a CPU cooler that can control the heat generated by an overclocked processor. What's more, the cooler needs to have some intelligence about it to inform users of heat-related problems. That led me to a liquid cooling unit from CoolIT Systems. A liquid cooler is a good idea for those who want to experiment with overclocking; installation is pretty much the same as with a standard heatsink/fan.

Available for about $70, the CoolIT Domino A.L.C. is one of the lowest-priced prebuilt liquid coolers on the market. The cooler's LCD screen shows CPU temperature and fan speeds and can be adjusted to reduce noise and power consumption.

CoolIT Domino A.L.C. CPU cooler

Hard drive

Computer storage tends to be a lot like closet space -- you can never have enough. With that axiom in mind, it's important to select a hard-disk drive (HDD) that is large enough to meet all of your storage needs, yet is still reliable, offers great performance, and doesn't cost an arm and a leg. Although solid-state drives (SSDs) are all the rage these days, they are prohibitively expensive for building an economical system, and their advantages, such as low power use and small size, are often wasted on desktop systems.
Hard drives come in all shapes, sizes and interfaces. For most users, a traditional 3.5-in. hard drive using a SATA interface is the way to go. Prices per gigabyte have come down significantly of late, and hard drives of 500GB or more have become the norm.

Western Digital 1TB WD Caviar Green

After looking at the various hard drives on the market, it became obvious that it was pretty hard to beat Western Digital's WD Caviar Green series of hard drives. I chose model WD10EADS, which provides a terabyte of capacity for $120 or less. The unit offers a 3.0GB/s SATA interface and 32MB of cache, making it speedy enough for high-demand applications. The WD drive is also very quiet, uses very little power and doesn't generate a lot of heat -- all factors that help to create a reliable and quiet PC.

Optical drive


LG Super-Multi Blu-ray Rewriter optical drive
For most users, a generic internal DVD/CD burner would probably be adequate, but the goal of this project is to build a PC that can leverage Windows 7 to its fullest extent. That means it needs to be able to handle all of the common types of optical media -- CD/CD RW, DVD/DVD RW -- and take advantage of the CPU and motherboard's ability to process high-definition (HD) content, which translates to supporting Blu-ray media.
I chose an LG Super-Multi Blu-ray Rewriter (model GGC-H20L), which costs around $125. While that may be steep for an optical drive, the GGC-H20L can read Blu-ray discs as well as HD DVD discs. The drive also reads and writes to all of the popular DVD and CD formats, uses a SATA interface and features LiteScribe technology, which allows users to burn labels directly onto CDs.

Power supply


Corsair TX750W power supply
Choosing a power supply was a relatively straightforward task. Using common "green" guidelines to narrow down the field, I looked for a power supply unit that complies with the Restriction of Hazardous Substances (RoHS) directive and features 80 PLUS certification for energy efficiency. I also wanted a unit that would generate very little noise and could provide enough power for the addition of components down the road.
I decided on a 750-watt Corsair TX750W, which goes for about $120. The TX750W proved to be very quiet and has integrated cable management, which makes routing power cables simple -- all of the cables are removable and system builders need only attach the required cables for a system.

Case
With all of the components selected, it was time to consider a case. There are dozens of case manufacturers and hundreds of cases to choose from. To thin the herd, I looked for a full-size case that met a few specific needs: it had to be attractive, it had to be easy to assemble and access, it had to have good airflow to keep components cool, and finally it had to reduce noise.
I selected the Antec Nine Hundred Two, which costs about $130. While there are cases that cost less than half the price, it's hard to beat the expansion options offered by the Antec case. The case has room for several hard drives and several optical drives, and it's very easy to disassemble to add new components.

Antec Nine Hundred Two computer case
The results
Assembling the system took about 35 minutes. After adding a keyboard, mouse and monitor, I installed the Release Candidate version of Windows 7, which took another 15 minutes or so.
(The Windows 7 RC is available to the general public, but you must download it before August 20. Subscribers to Microsoft's TechNet and Microsoft Developer Network sites can get their hands on the final Windows 7 RTM code starting today.)
Windows 7
Windows 7 did an excellent job of identifying the components and installing the appropriate drivers from its installation DVD or over the Web via Microsoft Update. Some components, such as the motherboard audio and video, did require installation of the manufacturer's specific drivers from the installation discs that came with the hardware. All told, getting all the drivers installed took about 10 minutes.
I tested the system using PerformanceTest 7.0 (64-bit) from PassMark Software. The system rated an overall PassMark score of 1151.3 and a CPUmark score of 4025.6 (CPUmark is a subset of the PassMark rating that focuses only on raw CPU performance). I was able to safely overclock the system to 3.8GHz, which increased the PassMark score to 1322.5 and our CPUmark score to 4951.4, a worthwhile increase.
For not much more than $1,000, I constructed a high-performance system with minimal compromises, while still using top-of-the-line components. The case also has room for additional components, such as a high-performance video card, more RAM and additional hard drives, and the power supply has enough oomph to support such extras if I want to add them later on.
Parts and prices
Item Cost
CPU: AMD Phenom II x4 955 Black Edition (quad-core, 3.2GHz) $250
Motherboard: Asus M4A78T-E $150
RAM: Kingston Technology 4GB kit (2 x 2GB DDR3 modules) $115
CPU cooler: CoolIT Domino A.L.C. $70
Hard drive: Western Digital WD Caviar Green WD10EADS (1TB) $120
Optical drive: LG Super-Multi Blu-ray Rewriter GGC-H20L $125
Power supply: Corsair TX750W $120
Case: Antec Nine Hundred Two $130
Total $1,080
As a comparison, I also tested a system built with an Intel Core i7 965 CPU, an Intel DX58So motherboard, an Asus EN9800GTX+ video card and other high-end components. That system offered an overall PassMark Rating of 1679, roughly a 22% performance increase over my AMD test system. That performance increase came with a high price tag, though: The Intel Core-i7 system cost about $3,000 to build.
Is a 22% performance increase worth an extra $2,000? For the majority of users, the answer is no.
For those wanting to keep costs down even further, choosing some lower-level components than I did could easily shave $300 or more off of the total price. The areas to target for savings without sacrificing performance include the case, power supply, optical drive, hard drive and CPU cooler.

AMD settlement won't blunt Intel R&D, exec says

Analysts say cash infusion will attract investors to AMD; get antitrust monkey off Intel's back
Today's settlement of all antitrust litigation between Intel Corp. and Advanced Micro Devices Inc. should benefit both firms -- and shouldn't hurt Intel's R&D operation, Intel CTO and senior fellow Justin Rattner said.
"As a legal matter, it only concerned a very small part of the company," Rattner said. "From an R&D perspective, there aren't really any changes as a result of the agreement. For the legal people at Intel, it's a big change but I don't think the rest of us will be terribly affected."
The deal, which settles both antitrust litigation and patent cross license disputes, specifies that Intel will pay rival AMD $1.25 billion. Intel also agreed to abide by a set of business practice provisions.
For its part, AMD agreed to drop all pending litigation against Intel, including an upcoming case in U.S. District Court in Delaware and two cases pending in Japan. AMD also will withdraw all of its regulatory complaints filed against Intel with government agencies around the world.
"It's good for everyone that it's over," said Martin Reynolds, an analyst at Gartner Inc. "These long-term court battles are no good for anybody. This will make AMD a more attractive target for investors and it's certainly good news for Intel."
Reynolds said the settlement could portend that Intel will reach similar deals with other court foes.
The latest antitrust suit against Intel was filed in federal court last week by the state of New York, which alleges that Intel threatened computer makers, made payoffs and engaged in a "worldwide, systematic campaign of illegal conduct." An Intel spokesman downplayed that lawsuit, contending at the time it was a repackaging of the AMD case.
Therefore, Reynolds suggested, it's likely the AMD settlement will lead to the dropping of the New York lawsuit.
"With AMD withdrawing all complaints, it's likely all these suits will dry up," he added. "It will be hard to go forward."
The settlement should provide significant benefits to Intel over the long term, Reynolds said. "The $1.25 billion is a downside [for Intel], but that's about it. Intel can stand down in gathering all this evidence. They won't be in as many courtrooms. They can let go of some of their attorneys."
The settlement could also blunt any plans by the U.S. Federal Trade Commission to jump into the antitrust fray against Intel, said Rob Enderle, an analyst with the Enderle Group. The FTC had launched an antitrust investigation into Intel more than a year ago and had been expected to take some kind of antitrust action against the firm soon.
"This means AMD will stop pushing on the FTC and states to pound on Intel. And Intel will be able to focus on business and not do brand damage control, discovery, [and the like]," Enderle said. "Like Microsoft discovered, this doesn't necessarily stop New York or the FTC but it removes a lot of the momentum behind those efforts and effectively lowers their priority."
Enderle also noted that while $1.25 billion is a lot for Intel to pay out, the settlement is likely less than a court would have forced the company to pay had it lost an antitrust trial.
"I was estimating a judgment between $2 billion and $5 billion with penalties so this was a good deal from Intel and AMD needs the money," said Enderle. "[Intel] already looked guilty. This reduces the long-term impact from their actions substantially."

Intel hopes to boost cloud gaming with ray tracing

A new technology from Intel called ray tracing could bring lifelike images and improved 3D effects to games on tablets and other mobile devices.

The chip maker is creating chips and rewriting games to use ray tracing, which generates accurate images by tracing paths of light and could lead to console-like gaming via the cloud, the company said in a podcast this week.

At some point in the future, after a new Intel chip is released, mobile device users will be able to play complex 3D games over the cloud using real-time ray tracing, which demands a lot of computing power, Intel said. Clusters of power servers with multiple CPUs and vector processing units could process tasks in parallel, with accurate images then being delivered to tablets and smartphones.
Tablets and smartphones are mostly used for casual gaming, but increasingly sophisticated hardware is making the devices capable of handling higher-resolution graphics. Apple's iPad 2 tablet, which was announced this week, has improved graphics capabilities compared to its predecessor, while LG's Optimus 2X smartphone can render 1080p video. A tablet using Nvidia's upcoming mobile chip called Kal-El was demonstrated playing an Xbox 360 game at last month's Mobile World Congress show.

Intel has rewritten the first-person shooter game "Wolfenstein," which looks more realistic with ray-tracing technology, said Daniel Pohl, an Intel researcher, in the podcast.

"We have a red car sitting at a courtyard, which has a very shiny reflective surface. That can be rendered very good ... because ray tracing can do very physically [accurate] modeling of reflections," Pohl said.
For example, ray tracing will let gamers use reflections off the car's surface as a mirror to see if snipers are approaching from the rear, Pohl said. Ray tracing could also add more visual detail such as shadows, which could help enhance 3D effects in a game.
Modern device screens employ millions of pixels and millions of rays are sent out for every pixel, which creates a challenge as a lot of processing power is needed, said John Owens, associate professor of Electrical and Computer Engineering at University of California at Davis, during the podcast.
Billions of rays may need to be continually bounced off objects to accurately sample the changing scenes in a game. Modeling becomes even more complex if a game has a lot of moving objects and changing scenes.
"The reason [ray tracing] isn't pursued in your normal graphics cards today or that most of your games aren't done through it is that actually doing that computation is very challenging," Owens said.

Intel is trying to address the challenge through an experimental server chip called Knights Ferry, which is based on the company's new MIC (many integrated core) architecture. The chip, which was announced in May at the International Supercomputing Conference, is designed for intensive graphics and high-performance computing.
The chip has 32 x86 cores with corresponding 512-bit vector processing units. The cores operate at a clock speed of 1.2GHz, and the chip supports OpenCL and Microsoft's DirectX, which are frameworks that include tools for parallel programming.
Knights Ferry also implements elements of the now defunct Larrabee chip, which was to be Intel's first graphics processor. The chip maker showed Larrabee's ray-tracing capabilities on-stage at the Intel Developer Forum in 2009 in a game titled "Enemy Territory: Quake Wars," but many audience members were underwhelmed by the limited scope of the demonstration.
The first commercial product based on MIC architecture will be a chip called Knights Corner, which the company said will include more than 50 cores. Intel will release the chip in the first half of next year, an Intel executive said on a podcast in late February. Use of ray tracing for mobile gaming hinges on that chip's release.