02-06-2010, 22:21
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חבר מתאריך: 23.09.03
הודעות: 12,132
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A graphics processing unit or GPU (also occasionally called visual processing unit or VPU) is a dedicated graphics rendering device for a personal computer, workstation, or game console. Modern GPUs are very efficient at manipulating and displaying computer graphics, and their highly parallel structure makes them more effective than general-purpose CPUs for a range of complex algorithms such as accelerating physics using PhysX. A GPU can sit on top of a video card, or it can be integrated directly into the motherboard. More than 90% of new desktop and notebook computers have integrated GPUs, which are usually far less powerful than their add-in counterparts.
Any CUDA-ready GeForce graphics card (series 8 and newer, having 32 or more cores and 256MB or more of video memory[11]) can take advantage of PhysX without the need to install a dedicated PhysX card.
Versions 186 and newer of the ForceWare drivers disable PhysX hardware acceleration when a GPU from a different manufacturer, such as AMD, is present in the system.[11] Representatives at Nvidia stated to customers that the decision was made due to development expenses, and for quality assurance and business reasons.[10][12] This decision has caused a backlash from the community that led to the creation of a community patch for Windows 7, circumventing the GPU check in Nvidia's updated drivers.
At first it was believed that Nvidia removed this restriction in the beta release of the 257.15 drivers, rendering the patch useless; but Nvidia updated their blog[13] announcing that this was a "bug" and that ATI/PhsyX support will be disabled in the official WHQL certified release.[14]
Another patch is working for PPU and gets Batman: Arkham Asylum, for example, to work on windows 7 in "normal" physx settings ("high" settings requires a most powerful PPU)[15]
http://en.wikipedia.org/wiki/PhysX
בשורה התחתונה, זה תלוי בגרסא הספציפית של הדרייברים, והאם הפאטצ' המדובר מותקן או לא.
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Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. -Rick Cook
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