AMD Radeon R5 M255 vs NVIDIA GeForce 7800 GTX 512
Processeur graphique
| Nom du GPU | Topaz | G70 |
|---|---|---|
| GPU variant | Topaz PRO (216-0864032) | GF-7800-U-A2 |
| Architecture | GCN 3.0 | Curie |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 110 nm |
| Transistors | 1,550 million | 302 million |
| Taille des matrices | 125 mm² | 333 mm² |
Graphiques mobiles
| Date de publication | Oct 12th, 2014 | — |
|---|---|---|
| Génération | Crystal System (R5 M200) | — |
| Production | End-of-life | — |
| Bus interface | PCIe 3.0 x8 | — |
| Prédécesseur | Solar System | — |
| Successeur | Mobility Radeon | — |
Vitesse clock
| Base clock | 925 MHz | — |
|---|---|---|
| Boost clock | 940 MHz | — |
| Mémoire clock | 1000 MHz 4 Gbps effective | 800 MHz 1600 Mbps effective |
| GPU clock | — | 500 MHz |
Mémoire
| Taille de la mémoire | 1024 MB | 512 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR3 |
| Bus mémoire | 128 bit | 256 bit |
| Bande passante | 64.00 GB/s | 51.20 GB/s |
Render Config
| Shading units | 384 | — |
|---|---|---|
| TMUs | 24 | 24 |
| ROPs | 8 | 16 |
| Compute units | 6 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 24 |
| Vertex shaders | — | 8 |
Performance théorique
| Taux de pixel | 7.520 GPixel/s | 8.000 GPixel/s |
|---|---|---|
| Taux de texture | 22.56 GTexel/s | 12.00 GTexel/s |
| FP16 (half) performance | 721.9 GFLOPS (1:1) | — |
| FP32 (float) performance | 721.9 GFLOPS | — |
| FP64 (double) performance | 45.12 GFLOPS (1:16) | — |
| Vertex rate | — | 1.000 GVertices/s |
Board Design
| TDP | unknown | 108 W |
|---|---|---|
| Sorties | No outputs | 2x DVI1x S-Video |
| Taille Slot | — | Dual-slot |
| Longueur | — | 228 mm 9 inches |
| Suggestions pour le PSU | — | 300 W |
| Board number | — | P348 |
| Taille | — | 111 mm 4.4 inches |
| Taille | — | 38 mm 1.5 inches |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 4.6 | 2.1 |
| OpenCL | 2.0 | — |
| Vulkan | 1.2 | — |
| Shader model | 6.3 | 3.0 |
AUTRES CARACTÉRISTIQUES
Carte graphique
| Date de publication | — | Nov 14th, 2005 |
|---|---|---|
| Génération | — | GeForce 7 PCIe |
| Production | — | End-of-life |
| Prix de lancement | — | 649 USD |
| Bus interface | — | PCIe 1.0 x16 |
| Critiques | — | 206 in our database |
| Prédécesseur | — | GeForce 6 PCIe |
| Successeur | — | GeForce 8 |
