ATI Radeon HD 4250 vs NVIDIA GeForce 6800
Processeur graphique
| Nom du GPU | RV620 | NV40 |
|---|---|---|
| GPU variant | RV620 LE | — |
| Architecture | TeraScale | Curie |
| Fonderie | TSMC | TSMC |
| Taille du processus | 55 nm | 130 nm |
| Transistors | 181 million | 222 million |
| Taille des matrices | 67 mm² | 287 mm² |
Carte graphique
| Date de publication | Feb 25th, 2009 | Apr 14th, 2004 |
|---|---|---|
| Génération | Radeon R600 | GeForce 6 AGP |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | AGP 8x |
| Prédécesseur | Radeon R500 PCIe | GeForce FX |
| Successeur | Radeon R700 | GeForce 7 AGP |
| Critiques | — | 115 in our database |
Vitesse clock
| GPU clock | 594 MHz | 325 MHz |
|---|---|---|
| Mémoire clock | 396 MHz 792 Mbps effective | 350 MHz 700 Mbps effective |
Mémoire
| Taille de la mémoire | 512 MB | 128 MB |
|---|---|---|
| Type de mémoire | DDR2 | DDR |
| Bus mémoire | 64 bit | 256 bit |
| Bande passante | 6.336 GB/s | 22.40 GB/s |
Render Config
| Shading units | 40 | — |
|---|---|---|
| TMUs | 4 | 12 |
| ROPs | 4 | 12 |
| Compute units | 2 | — |
| Cache L2 | 64 KB | — |
| Pixel shaders | — | 12 |
| Vertex shaders | — | 5 |
Performance théorique
| Taux de pixel | 2.376 GPixel/s | 3.900 GPixel/s |
|---|---|---|
| Taux de texture | 2.376 GTexel/s | 3.900 GTexel/s |
| FP32 (float) performance | 47.52 GFLOPS | — |
| Vertex rate | — | 406.3 MVertices/s |
Board Design
| Taille Slot | Single-slot | Single-slot |
|---|---|---|
| TDP | 25 W | unknown |
| Suggestions pour le PSU | 200 W | 200 W |
| Sorties | 1x DVI1x VGA1x S-Video | 1x DVI1x VGA1x S-Video |
| Connecteurs de puissance | None | 1x Molex |
| Board number | — | P201, P212 |
Caractéristiques graphiques
| DirectX | 10.1 (10_1) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 3.3 | 2.1 |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 4.1 | 3.0 |
