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Tag: ATI

GPU Processing and Password Cracking !

by admin on Sep.28, 2010, under Tech News

Recently, research students at Georgia Tech released a report outlining the dangers that GPUs pose to the current state of password security. There are a number of ways to crack a password, all with their different pros and cons, but when it comes down to it, the limiting factor in all of these methods is processing complexity. The more operations that need to be run, the longer it takes, and the less useful each tool is for cracking passwords. In the past, most recommendations for password security revolved around making sure your password wasn’t something predictable, such as “password” or your birthday. With today’s (and tomorrows) GPUs, this may no longer be enough.

Although the article never mentions them by name, the newest tools in password cracking are based around two tools, nVidia’s CUDA and AMD’s Stream SDKs. These tools allow programs to be written in C that can be broken up and utilize the parallel nature of the hardware that is usually optimized for graphics. GPUs are much better at large-scale mathematical operations than CPUs because of this parallel layout. Chances are, if you have a somewhat recent graphics card, it is probably compatible with either CUDA or Stream, and if you already know C, you have all the tools necessary to get started.

The lesson to learn here, the longer or more complex a password is, generally the safer it is. Because of this, a number of tools, both software and hardware, may become more and more popular, or necessary, to accommodate this need.

By H.a.D

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AMD Kills ATI Branding !!!!

by admin on Aug.30, 2010, under Tech News

Yep, the rumors are true.  AMD does indeed intend to do away with the ATI name, eliminating the “ATI Radeon” co-branding the company has steadfastly maintained since its acquisition of ATI.  The firm briefed us on its plans late last week and explained several factors influencing its decision.

As one might expect, a major motivator is the fact AMD plans to introduce a range of new products incorporating both AMD microprocessor technology and a Radeon graphics tech on the same chip.  The first fruits of the CPU-GPU “Fusion” initiative are slated to arrive soon.  “Ontario,” which will combine two copies of the low-power “Bobcat” CPU core with Radeon graphics, is slated to ship before the end of the year. The more powerful “Llano” APU, which mates quad Phenom II-class CPU cores with presumably a more capable GPU, is scheduled for the first half of 2011.  Obviously, the combination of the firm’s CPU and GPU technologies into single-chip products could create some consumer confusion, if folks were to continue to think of AMD and ATI as separate entities—especially if the ensuing marketing messages emphasize the benefits of CPU-GPU integration.

Furthermore, AMD tells us it feels confident in making this change right now because its graphics business is “on a roll,” having surpassed rival Nvidia in discrete graphics shipments last quarter, according to analyst estimates, and having secured high-profile design wins with the likes of Apple.  Also, the chastening of Intel via its settlement with the FTC gave AMD some extra assurance that the expansion of its brand into graphics wouldn’t hurt its relationships with major PC makers.

Of course, such decisions aren’t made without market research, and AMD shared a snippet of its internal research on this topic with us.  We think it’s worth relaying verbatim, in the form of a handsome corporate PowerPoint slide:

The long and short of it is that, according to AMD’s own survey results, consumers savvy enough to know something about discrete graphics cards tend to know the Radeon name, they tend to like AMD, and they don’t mind seeing the AMD name on graphics cards once they realize AMD merged with ATI.  The folks at AMD read those results as “permission” to jettison the ATI brand name.

The plan, then, is to replace “ATI Radeon” and “ATI FirePro” with “Radeon” and “FirePro”, along with a sprinkling of AMD corporate identity.  The badges you see above will be used for systems with discrete Radeon and FirePro graphics cards.  The lower row omits the AMD logo, so PC makers shipping Intel-based systems will be able to avoid the oil-and-water combo of Intel and AMD branding, if they wish.

If you just bought an “ATI Radeon” and are proud of that fact, fear not.  Existing products, including the Radeon HD 5000 series, will not be renamed.  Instead, AMD says the first products to carry the “AMD Radeon” label will be introduced later this year.

The first “Fusion” APUs will participate in the radically simplified “Vision” branding that AMD introduced last fall.  That program, when introduced, consolidated a ridiculous constellation of separate badges and stickers for pre-built PCs and laptops into a much smaller number.  AMD apparently intends to further consolidate under the Vision banner going forward, although those badges seem to multiply like guppies, so we wouldn’t place any large bets on things getting straightforwardly simpler.  For one example, look no further than the “ATI Eyefinity” technology; that will be re-branded as “AMD Eyefinity” and otherwise kept intact.

Interestingly enough, the corporate “Fusion” branding program will be coming to an end, as well.  The Fusion name apparently won’t carry over into APUs, believe it or not.

By Tech Report

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OpenGL 4.1 trumps DirectX 11 features, adds more

by admin on Jul.27, 2010, under Handheld Devices, Software, Tech News

http://www.blogcdn.com/www.engadget.com/media/2010/07/7-26-10-openglshopped.jpg

The Khronos Group today published the first specification for OpenGL 4.1 in what’s considered a coup for desktop graphics. The standard catches up to DirectX 11 in visual features and overtakes it in integration with other standards: it can now sync graphics with OpenCL to take advantage of video hardware’s general-purpose math features. Mobile app developers also now have full compatibility with OpenGL ES 2.0, theoretically letting a developer write an app for the iPhone or Android without having to change the visual effects when porting to a computer.

Software writers also get the option of loading a program in to process shader objects sooner, binding programs to specific stages, 64-bit component vertex shaders, and multiple viewports for rendering to a single surface, such as a polygon. Fragment shaders support stencil values, and WebGL acceleration should work more effectively.

Developers should have access to both the OpenGL 4.1 spec and test NVIDIA drivers this week, but finished drivers for end users will come later. Support should eventually reach multiple platforms, though updates on the Mac will depend on Apple cooperating with graphics chipset designers.

By Electronista

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