ATI Radeon HD 4850 X2 vs NVIDIA STG-2000
Processeur graphique
| Nom du GPU | R700 | NV1 |
|---|---|---|
| GPU variant | R700 PRO (215-0669065) | STG2000X-B |
| Architecture | TeraScale | — |
| Fonderie | TSMC | ST |
| Taille du processus | 55 nm | 500 nm |
| Transistors | 956 million | 1 million |
| Taille des matrices | 256 mm² | 90 mm² |
Carte graphique
| Date de publication | Nov 7th, 2008 | Sep 30th, 1995 |
|---|---|---|
| Génération | Radeon R700 | NV1 |
| Production | End-of-life | End-of-life |
| Prix de lancement | 420 USD | 249 USD |
| Bus interface | PCIe 2.0 x16 | PCI |
| Critiques | 26 in our database | — |
| Prédécesseur | Radeon R600 | — |
| Successeur | Evergreen | Riva |
Vitesse clock
| GPU clock | 625 MHz | 75 MHz |
|---|---|---|
| Mémoire clock | 995 MHz 1990 Mbps effective | 50 MHz |
Mémoire
| Taille de la mémoire | 512 MB | 1 MB |
|---|---|---|
| Type de mémoire | GDDR3 | FPM |
| Bus mémoire | 256 bit | 64 bit |
| Bande passante | 63.68 GB/s | 400.0 MB/s |
Render Config
| Shading units | 800 | — |
|---|---|---|
| TMUs | 40 | 1 |
| ROPs | 16 | 1 |
| Compute units | 10 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 1 |
| Vertex shaders | — | 0 |
Performance théorique
| Taux de pixel | 10.00 GPixel/s | 75.00 MPixel/s |
|---|---|---|
| Taux de texture | 25.00 GTexel/s | 75.00 MTexel/s |
| FP32 (float) performance | 1,000 GFLOPS | — |
| FP64 (double) performance | 200.0 GFLOPS (1:5) | — |
Board Design
| Taille Slot | Dual-slot | Single-slot |
|---|---|---|
| Longueur | 267 mm 10.5 inches | 168 mm 6.6 inches |
| TDP | 250 W | 2 W |
| Suggestions pour le PSU | 600 W | 200 W |
| Sorties | 4x DVI1x S-Video | 1x VGA1x DB13W3 |
| Connecteurs de puissance | 1x 6-pin + 1x 8-pin | None |
| Board number | B501 | — |
Caractéristiques graphiques
| DirectX | 10.1 (10_1) | 1.0 |
|---|---|---|
| OpenGL | 3.3 | — |
| OpenCL | 1.1 | — |
| Vulkan | — | — |
| Shader model | 4.1 | — |
| Pixel shader | — | — |
| Vertex shader | — | — |
