NVIDIA GeForce 7800 GTX 512 vs NVIDIA GeForce 8800 GTX
Processeur graphique
| Nom du GPU | G70 | G80 |
|---|---|---|
| GPU variant | GF-7800-U-A2 | G80-300-A2 |
| Architecture | Curie | Tesla |
| Fonderie | TSMC | TSMC |
| Taille du processus | 110 nm | 90 nm |
| Transistors | 302 million | 681 million |
| Taille des matrices | 333 mm² | 484 mm² |
Carte graphique
| Date de publication | Nov 14th, 2005 | Nov 8th, 2006 |
|---|---|---|
| Génération | GeForce 7 PCIe | GeForce 8 |
| Production | End-of-life | End-of-life |
| Prix de lancement | 649 USD | 599 USD |
| Bus interface | PCIe 1.0 x16 | PCIe 1.0 x16 |
| Critiques | 206 in our database | 73 in our database |
| Prédécesseur | GeForce 6 PCIe | GeForce 7 PCIe |
| Successeur | GeForce 8 | GeForce 9 |
Vitesse clock
| GPU clock | 500 MHz | 576 MHz |
|---|---|---|
| Mémoire clock | 800 MHz 1600 Mbps effective | 900 MHz 1800 Mbps effective |
| Shader clock | — | 1350 MHz |
Mémoire
| Taille de la mémoire | 512 MB | 768 MB |
|---|---|---|
| Type de mémoire | GDDR3 | GDDR3 |
| Bus mémoire | 256 bit | 384 bit |
| Bande passante | 51.20 GB/s | 86.40 GB/s |
Render Config
| Pixel shaders | 24 | — |
|---|---|---|
| Vertex shaders | 8 | — |
| TMUs | 24 | 32 |
| ROPs | 16 | 24 |
| Shading units | — | 128 |
| Comptage SM | — | 16 |
| Cache L2 | — | 96 KB |
Performance théorique
| Taux de pixel | 8.000 GPixel/s | 13.82 GPixel/s |
|---|---|---|
| Vertex rate | 1.000 GVertices/s | — |
| Taux de texture | 12.00 GTexel/s | 36.86 GTexel/s |
| FP32 (float) performance | — | 345.6 GFLOPS |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 228 mm 9 inches | 270 mm 10.6 inches |
| TDP | 108 W | 155 W |
| Suggestions pour le PSU | 300 W | 450 W |
| Sorties | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Board number | P348 | P355 |
| Taille | 111 mm 4.4 inches | — |
| Taille | 38 mm 1.5 inches | — |
| Connecteurs de puissance | — | 2x 6-pin |
Caractéristiques graphiques
| DirectX | 9.0c (9_3) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 2.1 | 3.3 |
| OpenCL | — | 1.1 (1.0) |
| Vulkan | — | — |
| Shader model | 3.0 | 4.0 |
| CUDA | — | 1.0 |
