http://yoko-hama.blogspot.com/2009/05/pcie.html

[有請幫忙測試] PCIe 頻寬測試機

>這個是 CUDA + Brook+ 的混合開發成果之一, 主要是拿來測顯卡用的 (限 nVidia 可以支援 CUDA 的產品, GF8100 以上. ATi 可以支援 CAL 的產品, HD2350 以上), 如同時有 nv 跟 ati 的顯卡的話就會一起測試. 但不確定能否支援 SLI 或 CF, 因為我沒硬體可以測試.

貼一下這邊的結果：

(FW182.50)

no CAL supported hardware

found num of 1 CUDA capability device

test CUDA device effect bandwidth

size 32M, CPU to GPU 2133.333252Mb/s, GPU to CPU 2000.000000Mb/s

size 64M, CPU to GPU 2000.000000Mb/s, GPU to CPU 2064.516113Mb/s

size 128M, CPU to GPU 2723.404297Mb/s, GPU to CPU 2031.745972Mb/s

size 256M, CPU to GPU 4129.032227Mb/s, GPU to CPU 2723.404297Mb/s

size 512M, CPU to GPU 5446.808594Mb/s, GPU to CPU 4697.247559Mb/s

size 576M, CPU to GPU 4608.000000Mb/s, GPU to CPU 3348.837158Mb/s

size 648M, CPU to GPU 3767.441895Mb/s, GPU to CPU 2757.446777Mb/s

(FW185.85)

no CAL supported hardware

found num of 1 CUDA capability device

test CUDA device effect bandwidth

size 32M, CPU to GPU 2133.333252Mb/s, GPU to CPU 2000.000000Mb/s

size 64M, CPU to GPU 2064.516113Mb/s, GPU to CPU 2000.000000Mb/s

size 128M, CPU to GPU 2782.608643Mb/s, GPU to CPU 2031.745972Mb/s

size 256M, CPU to GPU 4129.032227Mb/s, GPU to CPU 3240.506348Mb/s

size 512M, CPU to GPU 6564.102539Mb/s, GPU to CPU 5505.376465Mb/s

size 768M, CPU to GPU 6981.818359Mb/s, GPU to CPU 5485.714355Mb/s