John Carmack老大又說話了!(關於NV30的PS performance
 

http://www.gamersdepot.com/hardware...desktop/001.htm

GD: John, we've found that NVIDIA hardware seems to come to a crawl whenever Pixel Shader's are involved, namely PS 2.0..

Have you witnessed any of this while testing under the Doom3 environment?

"Yes. NV30 class hardware can run the ARB2 path that uses ARB_fragment_program, but it is very slow, which is why I have a separate NV30 back end that uses NV_fragment_program to specify most of the operations as 12 or 16 bit instead of 32 bit."

John Carmack

雖然NV3x架構的成敗暫時看來還頗難論斷!或是說實在有點艱難....?!
但有趣的是當初被nVIDIA拿來大打****的32bit運算反倒成了它效能低落的苦處,
處境真的有點像啞巴吃黃蓮......:jolin: