ATI Radeon HD 3850 vs NVIDIA GeForce 7900 GX2
Grafikprozessor
| GPU Name | RV670 | G71 |
|---|---|---|
| GPU Variante | RV670 PRO (215-0708003) | — |
| Architektur | TeraScale | Curie |
| Hersteller | TSMC | TSMC |
| Prozessgröße | 55 nm | 90 nm |
| Transistoren | 666 million | 278 million |
| Chipgröße | 192 mm² | 196 mm² |
Grafikkarte
| Veröffentlichungsdatum | Nov 19th, 2007 | Apr 30th, 2006 |
|---|---|---|
| Generation | Radeon R600 | GeForce 7 PCIe |
| Produktion | End-of-life | End-of-life |
| Originalpreis | 179 USD | 599 USD |
| Businterface | PCIe 2.0 x16 | PCIe 1.0 x16 |
| Reviews | 71 in our database | 145 in our database |
| Vorgänger | Radeon R500 PCIe | GeForce 6 PCIe |
| Nachfolger | Radeon R700 | GeForce 8 |
Takt-Geschwindigkeiten
| GPU-Taktung | 668 MHz | 500 MHz |
|---|---|---|
| Speicher-Taktung | 830 MHz 1660 Mbps effective | 600 MHz 1200 Mbps effective |
Speicher
| Speichergröße | 512 MB | 512 MB |
|---|---|---|
| Speichertyp | GDDR3 | GDDR3 |
| Speicherbus | 256 bit | 256 bit |
| Bandbreite | 53.12 GB/s | 38.40 GB/s |
Render-Konfiguration
| Shading-Einheiten | 320 | — |
|---|---|---|
| TMUs | 16 | 24 |
| ROPs | 16 | 16 |
| Compute Units | 4 | — |
| Cache L2 | 256 KB | — |
| Pixelshader | — | 24 |
| Vertex-Shader | — | 8 |
Theoretische Leistung
| Pixelrate | 10.69 GPixel/s | 8.000 GPixel/s |
|---|---|---|
| Texturrate | 10.69 GTexel/s | 12.00 GTexel/s |
| FP32 (float) Leistung | 427.5 GFLOPS | — |
| FP64 (double) Leistung | 85.50 GFLOPS (1:5) | — |
| Vertex-Rate | — | 1.000 GVertices/s |
Boarddesign
| Steckplatzbreite | Single-slot | Dual-slot |
|---|---|---|
| Länge | 208 mm 8.2 inches | 312 mm 12.3 inches |
| TDP | 75 W | 110 W |
| Vorgeschlagenes Netzteil | 250 W | 300 W |
| Ausgabe | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Stromverbindung | 1x 6-pin | 2x 6-pin |
| Board-Nummer | B340, B400 | P278, P378 |
Grafik-Features
| DirectX | 10.1 (10_1) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 3.3 (full) 4.0 (partial) | 2.1 |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader-Modell | 4.1 | 3.0 |
