ATI Radeon HD 2900 GT vs NVIDIA GeForce 7800 GTX
Processeur graphique
| Nom du GPU | R600 | G70 |
|---|---|---|
| GPU variant | R600 GT (215RGFDKA13FG) | GF-7800-GTX-A2 |
| Architecture | TeraScale | Curie |
| Fonderie | TSMC | TSMC |
| Taille du processus | 80 nm | 110 nm |
| Transistors | 720 million | 302 million |
| Taille des matrices | 420 mm² | 333 mm² |
Carte graphique
| Date de publication | Nov 6th, 2007 | Jun 22nd, 2005 |
|---|---|---|
| Génération | Radeon R600 | GeForce 7 PCIe |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 1.0 x16 | PCIe 1.0 x16 |
| Critiques | 63 in our database | 206 in our database |
| Prédécesseur | Radeon R500 PCIe | GeForce 6 PCIe |
| Successeur | Radeon R700 | GeForce 8 |
| Prix de lancement | — | 599 USD |
Vitesse clock
| GPU clock | 601 MHz | 430 MHz |
|---|---|---|
| Mémoire clock | 800 MHz 1600 Mbps effective | 600 MHz 1200 Mbps effective |
Mémoire
| Taille de la mémoire | 256 MB | 256 MB |
|---|---|---|
| Type de mémoire | GDDR3 | GDDR3 |
| Bus mémoire | 256 bit | 256 bit |
| Bande passante | 51.20 GB/s | 38.40 GB/s |
Render Config
| Shading units | 240 | — |
|---|---|---|
| TMUs | 12 | 24 |
| ROPs | 12 | 16 |
| Compute units | 3 | — |
| Cache L2 | 128 KB | — |
| Pixel shaders | — | 24 |
| Vertex shaders | — | 8 |
Performance théorique
| Taux de pixel | 7.212 GPixel/s | 6.880 GPixel/s |
|---|---|---|
| Taux de texture | 7.212 GTexel/s | 10.32 GTexel/s |
| FP32 (float) performance | 288.5 GFLOPS | — |
| Vertex rate | — | 860.0 MVertices/s |
Board Design
| Taille Slot | Dual-slot | Single-slot |
|---|---|---|
| TDP | 150 W | 86 W |
| Suggestions pour le PSU | 450 W | 250 W |
| Sorties | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Connecteurs de puissance | 1x 8-pin | — |
| Board number | B002 | — |
| Longueur | — | 228 mm 9 inches |
Caractéristiques graphiques
| DirectX | 10.0 (10_0) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 3.3 (full) 4.0 (partial) | 2.1 |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 4.0 | 3.0 |
