ATI Radeon HD 3450 vs ATI Radeon X1900 CrossFire Edition
Processeur graphique
| Nom du GPU | RV620 | R580 |
|---|---|---|
| GPU variant | RV620 LE | R580 CF |
| Architecture | TeraScale | R500 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 55 nm | 90 nm |
| Transistors | 181 million | 384 million |
| Taille des matrices | 67 mm² | 352 mm² |
Carte graphique
| Date de publication | Dec 10th, 2007 | Jan 24th, 2006 |
|---|---|---|
| Génération | Radeon R600 | Radeon R500 PCIe |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | PCIe 1.0 x16 |
| Critiques | 7 in our database | 115 in our database |
| Prédécesseur | Radeon R500 PCIe | Radeon R400 PCIe |
| Successeur | Radeon R700 | Radeon R600 |
Vitesse clock
| GPU clock | 600 MHz | 625 MHz |
|---|---|---|
| Mémoire clock | 500 MHz 1000 Mbps effective | 725 MHz 1450 Mbps effective |
Mémoire
| Taille de la mémoire | 256 MB | 512 MB |
|---|---|---|
| Type de mémoire | DDR2 | GDDR3 |
| Bus mémoire | 64 bit | 256 bit |
| Bande passante | 8.000 GB/s | 46.40 GB/s |
Render Config
| Shading units | 40 | — |
|---|---|---|
| TMUs | 4 | 16 |
| ROPs | 4 | 16 |
| Compute units | 2 | — |
| Cache L2 | 64 KB | — |
| Pixel shaders | — | 48 |
| Vertex shaders | — | 8 |
Performance théorique
| Taux de pixel | 2.400 GPixel/s | 10.00 GPixel/s |
|---|---|---|
| Taux de texture | 2.400 GTexel/s | 10.00 GTexel/s |
| FP32 (float) performance | 48.00 GFLOPS | — |
| Vertex rate | — | 1.250 GVertices/s |
Board Design
| Taille Slot | Single-slot | Dual-slot |
|---|---|---|
| TDP | 25 W | 100 W |
| Suggestions pour le PSU | 200 W | 300 W |
| Sorties | 1x DVI1x VGA1x S-Video | 2x DVI1x S-Video |
| Connecteurs de puissance | None | 1x 6-pin |
| Board number | B629 | 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 |
