Test Systems And Benchmarks
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.
Header Cell - Column 0 | AMD Test System | Intel Test System A | Intel Test System B |
---|---|---|---|
CPU | Athlon II X2 250(3.0 GHz, No Shared Cache)Athlon II X4 620 (2.6 GHz, No Shared Cache)Phenom II X4 965(3.4 GHz, 6MB L3 Cache) | Intel Core i5-750 2.66 GHz Quad-core, 8MB L3 Cache | Intel Core i7-920 2.66 GHzQuad-core, 4.2 GT/s QPI, 8MB L3 Cache |
Motherboard | Asus M4A785TD-M EVO AMD 785G, BIOS 0910 | Gigabyte P55-UD4P LGA-1156 Intel P55-Express, BIOS F5 | ASRock X58 SuperComputer Intel X58, BIOS P1.90 |
Memory | Mushkin PC3-10700 2x 2GB (4 GB Total)CL 9-9-9-24 | 2 x A-Data 2.0GB DDR3-1333 Kit 2 x 2GB (4 GB Total)CL 9-9-9-24 | Kingston PC3-10700 3 x 1GB (3 GB Total)CL 9-9-9-22 |
Graphics | GeForce GTX 260 Asus ENGTX260, 796MB DDR3 PCIe | ||
Hard Drive | Western Digital Caviar Black 640GB 7,200 RPM, 32MB Cache SATA 3.0 Gb/s | ||
Power | ePower EP-1200P10-T21,200W, ATX 12V, EPS 12v | ||
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 | ||
Graphics Drivers | ForceWare 195.62 | ||
Encoding Software | TMPGEnc. 4.0 Xpress Version 4.7.3.292 | Row 10 - Cell 2 | |
SpursEngine Driver | 1.5.2.5 | Row 11 - Cell 2 |
Benchmark Configuration | |
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Standard Encoding | MPEG 4 AVC, 720x480 Resolution, 23.976 FPSAspect ratio: 4:3, MPEG4 AAC Low Complexity 160 Kb/s Audio, GOP: 18 frames, Video Entropy Setting: CAVLC, Bitrate: 505.654 Kb/s |
HD Upscale Encoding | MPEG 4 AVC, 1920x1080 Resolution, 29.97 FPS Aspect ratio: 16:9, Dolby Digital 256 Kb/s Audio, GOP: 18 frames, Bitrate: 32,000 Kb/s |