NVIDIA GeForce 8400M GS vs NVIDIA GeForce 9400M
Graphics Processor
| GPU model | G86 | C79 |
|---|---|---|
| GPU variant | NB8M-GS | C79MX |
| Architecture | Tesla | Tesla |
| Foundry | TSMC | — |
| Manufacturing process | 80 nm | 65 nm |
| Number of transistors | 210 million | 314 million |
| Die size | 127 mm² | 144 mm² |
Mobile graphics
| Release date | May 9th, 2007 | — |
|---|---|---|
| Generation | GeForce 8M (8000M) | — |
| Production | End-of-life | — |
| Interface | MXM-I | — |
| Predecessor | GeForce Go 7 | — |
| Successor | GeForce 9M | — |
Clocks
| GPU clock | 400 MHz | 580 MHz |
|---|---|---|
| Shader clock | 800 MHz | 1400 MHz |
| Memory clock | 400 MHz 800 Mbps effective | System Shared |
Memory Configuration
| Memory size | 256 MB | System Shared |
|---|---|---|
| Memory type | DDR2 | System Shared |
| Memory bus width | 64 bit | System Shared |
| Bandwidth | 6.400 GB/s | System Dependent |
Render Configuration
| Shading units | 16 | 16 |
|---|---|---|
| TMUs | 8 | 8 |
| ROPs | 4 | 4 |
| SM count | 2 | 2 |
| Cache L2 | 16 KB | — |
Performance
| Pixel rate | 1.600 GPixel/s | 2.320 GPixel/s |
|---|---|---|
| Texture rate | 3.200 GTexel/s | 4.640 GTexel/s |
| FP32 (float) performance | 25.60 GFLOPS | 44.80 GFLOPS |
Dimensions & Outputs
| Slot width | MXM Module | IGP |
|---|---|---|
| TDP | 11 W | 12 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 11.1 (10_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.1 | — |
| Vulkan | — | — |
| CUDA | 1.1 | — |
| Shader model | 4.0 | 4.0 |
Other Features
Integrated Graphics
| Release date | — | Oct 15th, 2008 |
|---|---|---|
| Generation | — | GeForce 9M IGP (9000M) |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Predecessor | — | GeForce 8M IGP |
