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AMD's Hybrid Graphics Unveiled, Tested

Posted by Zonk on from the more-than-meets-the-eye dept.

ThinSkin writes "The combination of AMD's ATI graphics division and AMD's CPU division means that AMD often fights a two-front war, directly competing against Intel in the CPU business as well as Nvidia in graphics. AMD's Hybrid Graphics technology allows them to fight against both companies at the same time. Inserting an additional card works the same as CrossFire, which, like Nvidia's SLI, was only capable by having two discrete graphics cards installed on a motherboard. ExtremeTech has put the 780G chipset through a series of gaming and synthetic benchmarks to see just how beneficial this technology is. HotHardware has a similar rundown on the technology. The results indicate that Hybrid Graphics aren't yet ideal for the power-hungry gamer, as driver revisions need to be ironed out at this early stage, but performance looks promising."

3 of 90 comments (clear)

  1. More good reviews by Vigile · · Score: 5, Informative

    There are some other good looks at RS780 performance:

    http://www.pcper.com/article.php?aid=527 - looks at Hybrid CrossFire with several games in real world testing as well as GPU overclocking; also features the new AMD X2 4850e processor
    http://www.techwarelabs.com/reviews/processors/780g-and-4850e/ - looks at both the chipset and CPU
    http://techreport.com/articles.x/14261 - good motherboard review
    http://www.bit-tech.net/hardware/2008/03/04/amd_780g_integrated_graphics_chipset/1 - tests HQV and HD audio systems

  2. Re:Who cares, it sucks by BTG9999 · · Score: 4, Informative

    If you would RTFA you would have read that it is possible for motherboard to have dedicated ram for the integrated video card since AMD put a memory interface on the northbridge.

  3. Re:Who cares, it sucks by Anonymous Coward · · Score: 4, Informative

    The motherboard's BIOS lets you borrow 128, 256 or 512 MB of RAM from the system's RAM, to allocate it as video memory to the integrated GPU. For the first time ever, AMD is also equipping its integrated graphics chip with a separate memory interface. This allows motherboard makers and OEMs to provide dedicated graphics memory for the integrated chip directly on the board, if they find the GPU's performance unsatisfactory, or don't wish to use a shared-memory solution. In effect, this transforms the integrated on-chip graphics solution into a dedicated graphics card that just happens to reside in the northbridge
    Link. You're right that it is currently limited due to the RAM-sharing, but you are wrong that it will necessarily suck forever. There's no telling yet how the dedicated memory channel will affect performance. Who knows? Perhaps it will move out of the realm of suck.