ATI Radeon HD 4570 Rebrand vs ATI Radeon X1900 CrossFire Edition
Processeur graphique
| Nom du GPU | RV635 | R580 |
|---|---|---|
| GPU variant | RV635 PRO (215-0682008) | R580 CF |
| Architecture | TeraScale | R500 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 55 nm | 90 nm |
| Transistors | 378 million | 384 million |
| Taille des matrices | 135 mm² | 352 mm² |
Carte graphique
| Date de publication | Nov 22nd, 2009 | Jan 24th, 2006 |
|---|---|---|
| Génération | Radeon R700 | Radeon R500 PCIe |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | PCIe 1.0 x16 |
| Prédécesseur | Radeon R600 | Radeon R400 PCIe |
| Successeur | Evergreen | Radeon R600 |
| Critiques | — | 115 in our database |
Vitesse clock
| GPU clock | 796 MHz | 625 MHz |
|---|---|---|
| Mémoire clock | 396 MHz 792 Mbps effective | 725 MHz 1450 Mbps effective |
Mémoire
| Taille de la mémoire | 1024 MB | 512 MB |
|---|---|---|
| Type de mémoire | DDR2 | GDDR3 |
| Bus mémoire | 128 bit | 256 bit |
| Bande passante | 12.67 GB/s | 46.40 GB/s |
Render Config
| Shading units | 120 | — |
|---|---|---|
| TMUs | 8 | 16 |
| ROPs | 4 | 16 |
| Compute units | 3 | — |
| Cache L2 | 128 KB | — |
| Pixel shaders | — | 48 |
| Vertex shaders | — | 8 |
Performance théorique
| Taux de pixel | 3.184 GPixel/s | 10.00 GPixel/s |
|---|---|---|
| Taux de texture | 6.368 GTexel/s | 10.00 GTexel/s |
| FP32 (float) performance | 191.0 GFLOPS | — |
| Vertex rate | — | 1.250 GVertices/s |
Board Design
| Taille Slot | Single-slot | Dual-slot |
|---|---|---|
| Longueur | 190 mm 7.5 inches | — |
| TDP | 65 W | 100 W |
| Suggestions pour le PSU | 250 W | 300 W |
| Sorties | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Connecteurs de puissance | — | 1x 6-pin |
| Board number | — | A721 |
Caractéristiques graphiques
| DirectX | 10.1 (10_1) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 3.3 | 2.1 (full) 3.0 (partial) |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 4.1 | 3.0 |
