NVIDIA GeForce 9800M GT vs NVIDIA GeForce GT 420M
Processeur graphique
| Nom du GPU | G92 | GF108 |
|---|---|---|
| GPU variant | NB9E-GT2 | N11P-GE-A1 |
| Architecture | Tesla | Fermi |
| Fonderie | TSMC | TSMC |
| Taille du processus | 65 nm | 40 nm |
| Transistors | 754 million | 585 million |
| Taille des matrices | 324 mm² | 116 mm² |
Graphiques mobiles
| Date de publication | Jul 29th, 2008 | Sep 3rd, 2010 |
|---|---|---|
| Génération | GeForce 9M (9800M) | GeForce 400M |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | GeForce 8M | GeForce 300M |
| Successeur | GeForce 100M | GeForce 500M |
Vitesse clock
| GPU clock | 500 MHz | 500 MHz |
|---|---|---|
| Shader clock | 1250 MHz | 1000 MHz |
| Mémoire clock | 800 MHz 1600 Mbps effective | 800 MHz 1600 Mbps effective |
Mémoire
| Taille de la mémoire | 512 MB | 512 MB |
|---|---|---|
| Type de mémoire | GDDR3 | DDR3 |
| Bus mémoire | 256 bit | 128 bit |
| Bande passante | 51.20 GB/s | 25.60 GB/s |
Render Config
| Shading units | 96 | 96 |
|---|---|---|
| TMUs | 48 | 16 |
| ROPs | 16 | 4 |
| Comptage SM | 12 | 2 |
| Cache L2 | 64 KB | 256 KB |
| Cache L1 | — | 64 KB (per SM) |
Performance théorique
| Taux de pixel | 8.000 GPixel/s | 2.000 GPixel/s |
|---|---|---|
| Taux de texture | 24.00 GTexel/s | 8.000 GTexel/s |
| FP32 (float) performance | 240.0 GFLOPS | 192.0 GFLOPS |
| FP64 (double) performance | — | 16.00 GFLOPS (1:12) |
Board Design
| Taille Slot | MXM Module | — |
|---|---|---|
| TDP | 65 W | 23 W |
| Sorties | No outputs | No outputs |
| Connecteurs de puissance | None | — |
| Board number | P394, P398 | — |
Caractéristiques graphiques
| DirectX | 11.1 (10_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| CUDA | 1.1 | 2.1 |
| Shader model | 4.0 | 5.1 |
