NVIDIA GeForce 8400M GS vs NVIDIA GeForce Go 7800
Processeur graphique
| Nom du GPU | G86 | G70 |
|---|---|---|
| GPU variant | NB8M-GS | — |
| Architecture | Tesla | Curie |
| Fonderie | TSMC | TSMC |
| Taille du processus | 80 nm | 110 nm |
| Transistors | 210 million | 302 million |
| Taille des matrices | 127 mm² | 333 mm² |
Graphiques mobiles
| Date de publication | May 9th, 2007 | Mar 3rd, 2006 |
|---|---|---|
| Génération | GeForce 8M (8000M) | GeForce Go 7 (Go 7000) |
| Production | End-of-life | End-of-life |
| Bus interface | MXM-I | PCIe 1.0 x16 |
| Prédécesseur | GeForce Go 7 | GeForce Go 6 |
| Successeur | GeForce 9M | GeForce 8M |
Vitesse clock
| GPU clock | 400 MHz | 400 MHz |
|---|---|---|
| Shader clock | 800 MHz | — |
| Mémoire clock | 400 MHz 800 Mbps effective | 550 MHz 1100 Mbps effective |
Mémoire
| Taille de la mémoire | 256 MB | 256 MB |
|---|---|---|
| Type de mémoire | DDR2 | GDDR3 |
| Bus mémoire | 64 bit | 256 bit |
| Bande passante | 6.400 GB/s | 35.20 GB/s |
Render Config
| Shading units | 16 | — |
|---|---|---|
| TMUs | 8 | 16 |
| ROPs | 4 | 16 |
| Comptage SM | 2 | — |
| Cache L2 | 16 KB | — |
| Pixel shaders | — | 16 |
| Vertex shaders | — | 6 |
Performance théorique
| Taux de pixel | 1.600 GPixel/s | 6.400 GPixel/s |
|---|---|---|
| Taux de texture | 3.200 GTexel/s | 6.400 GTexel/s |
| FP32 (float) performance | 25.60 GFLOPS | — |
| Vertex rate | — | 600.0 MVertices/s |
Board Design
| Taille Slot | MXM Module | — |
|---|---|---|
| TDP | 11 W | 35 W |
| Sorties | No outputs | No outputs |
Caractéristiques graphiques
| DirectX | 11.1 (10_0) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 3.3 | 2.1 |
| OpenCL | 1.1 | — |
| Vulkan | — | — |
| CUDA | 1.1 | — |
| Shader model | 4.0 | 3.0 |
