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We chose a number of CPUs, from sub-$100 dual-core models to Intel's top-of-the-line Core i7. We benchmarked these CPUs with and without the WinFast PxVC1100 card in order to collect enough data for a thorough price/performance evaluation. We wanted to be able to conclusively prove whether or not the WinFast card is worth the asking price. We'd also like to see if the SpursEngine-equipped card requires a certain level of CPU prowess to perform at its best.
Note that we chose to benchmark the system with a GeForce GTX 260 graphics card installed. This is because we had originally hoped to compare the GeForce's CUDA abilities to the CPU and PxVC1100. Unfortunately, we learned that the CUDA enhancements in TMPGEnc. 4.0 Xpress are limited to video filters and cannot simply be employed to accelerate format-to-format video transcoding. Because if this, we left CUDA filter acceleration out of our testing as we're interested in focusing on hardware transcoding value.
As mentioned earlier, we couldn't get the WinFast card to work with our ASRock X58-based motherboard. On the bright side, the Core i7-920 CPU we're using represents the top-tier CPU, and still makes for a good comparison to show us if it will provide good value compared to a cheaper CPU paired with the SpursEngine.
|AMD Test System||Intel Test System A||Intel Test System B|
Athlon II X2 250
Intel Core i5-750 2.66 GHz
Intel Core i7-920 2.66 GHz
Asus M4A785TD-M EVO
Gigabyte P55-UD4P LGA-1156
ASRock X58 SuperComputer
2 x A-Data 2.0GB DDR3-1333 Kit
GeForce GTX 260
Western Digital Caviar Black 640GB
|Software and Drivers|
|Operating System||Microsoft Windows 7 Ultimate 64-bit||Microsoft Windows Vista Ultimate 64-bit 6.0.6001, SP1|
|DirectX version||DirectX 11|
|Encoding Software||TMPGEnc. 4.0 Xpress Version 220.127.116.112|
MPEG 4 AVC, 720x480 Resolution, 23.976 FPS
|HD Upscale Encoding|
MPEG 4 AVC, 1920x1080 Resolution, 29.97 FPS