Comparison of GeForce GT 9400 and GeForce 8400 GS [S]ave
| Attribute |  GeForce GT 9400 × |  GeForce 8400 GS × |
|---|---|---|
| GPU | ||
| Release year (year) | 2008 | 2010 |
| GPU brand | Nvidia | Nvidia |
| GPU name | G96 C1 | GT218 B1 |
| Market | Desktop | Desktop |
| Clock speed (MHz) | 550 | 520 |
| Is dual GPU | - | - |
| Model | GeForce GT 9400 | GeForce 8400 GS |
| Memory | ||
| Memory (MB) | 512 | 512 |
| Memory bandwidth (GB/s) | 12.8 | 6.4 |
| Memory bus (bit) | 128 | 64 |
| Memory type | GDDR3 | DDR2 |
| Memory clock speed (MHz) | 400 | 400 |
| Effective memory clock speed (MHz) | 800 | 800 |
| Noise and power | ||
| TDP (W) | 50 | 25 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 2.2 | 2.08 |
| Render output processors | 4 | 4 |
| Texture mapping units | 8 | 8 |
| Shading units | 16 | 16 |
| Floating-point performance (GFLOPS) | 45 | 39 |
| Texture rate (GTexel/s) | 4.4 | 4.16 |
| Benchmarks | ||
| Metro: Last Light | 16 | - |
| PassMark | 191 | 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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