Comparison of GeForce 8400 GS and GeForce 8400 GS PCI [S]ave
| Attribute |  GeForce 8400 GS × |  GeForce 8400 GS PCI × |
|---|---|---|
| GPU | ||
| Release year (year) | 2010 | 2011 |
| Reference card | - | Nvidia GeForce 8400 GS PCI 520 MHz 512 MB |
| GPU brand | Nvidia | Nvidia |
| GPU name | GT218 B1 | G86 |
| Market | Desktop | Desktop |
| Clock speed (MHz) | 520 | 520 |
| Is dual GPU | - | - |
| Model | GeForce 8400 GS | GeForce 8400 GS PCI |
| Memory | ||
| Memory (MB) | 512 | 512 |
| Memory bandwidth (GB/s) | 6.4 | 8 |
| Memory bus (bit) | 64 | 64 |
| Memory type | DDR2 | DDR3 |
| Memory clock speed (MHz) | 400 | 500 |
| Effective memory clock speed (MHz) | 800 | 1,000 |
| Noise and power | ||
| TDP (W) | 25 | 40 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 2.08 | 2.08 |
| Render output processors | 4 | 4 |
| Texture mapping units | 8 | 8 |
| Shading units | 16 | 16 |
| Floating-point performance (GFLOPS) | 39 | 39 |
| Texture rate (GTexel/s) | 4.16 | 4.16 |
| Benchmarks | ||
| PassMark | 114 | - |
| PassMark Direct Compute | 58 | - |
| Dirt3 | 30.5 | - |
| Cloud Gate Factor | 1.61 | - |
| T-Rex (GFXBench 3.0) | 390.75 | - |
| Sky Diver Factor | 1.57 | - |
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