AMD Radeon HD 6670 vs ATI Radeon HD 3870 X2
Grafikprozessor
| GPU Name | Turks | R680 |
|---|---|---|
| GPU Variante | Turks XT (215-0803000) | R680 XT (215-0708017) |
| Architektur | TeraScale 2 | TeraScale |
| Hersteller | TSMC | TSMC |
| Prozessgröße | 40 nm | 55 nm |
| Transistoren | 716 million | 666 million |
| Chipgröße | 118 mm² | 192 mm² |
Grafikkarte
| Veröffentlichungsdatum | Apr 19th, 2011 | Jan 26th, 2008 |
|---|---|---|
| Generation | Northern Islands | Radeon R600 |
| Produktion | End-of-life | End-of-life |
| Originalpreis | 99 USD | 449 USD |
| Businterface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 35 in our database | 72 in our database |
| Vorgänger | Evergreen | Radeon R500 PCIe |
| Nachfolger | Southern Islands | Radeon R700 |
Takt-Geschwindigkeiten
| GPU-Taktung | 800 MHz | 825 MHz |
|---|---|---|
| Speicher-Taktung | 1000 MHz 4 Gbps effective | 901 MHz 1802 Mbps effective |
Speicher
| Speichergröße | 1024 MB | 512 MB |
|---|---|---|
| Speichertyp | GDDR5 | GDDR3 |
| Speicherbus | 128 bit | 256 bit |
| Bandbreite | 64.00 GB/s | 57.66 GB/s |
Render-Konfiguration
| Shading-Einheiten | 480 | 320 |
|---|---|---|
| TMUs | 24 | 16 |
| ROPs | 8 | 16 |
| Compute Units | 6 | 4 |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 256 KB | 256 KB |
Theoretische Leistung
| Pixelrate | 6.400 GPixel/s | 13.20 GPixel/s |
|---|---|---|
| Texturrate | 19.20 GTexel/s | 13.20 GTexel/s |
| FP32 (float) Leistung | 768.0 GFLOPS | 528.0 GFLOPS |
| FP64 (double) Leistung | — | 105.6 GFLOPS (1:5) |
Boarddesign
| Steckplatzbreite | Single-slot | Dual-slot |
|---|---|---|
| Länge | 168 mm 6.6 inches | 267 mm 10.5 inches |
| TDP | 66 W | 165 W |
| Vorgeschlagenes Netzteil | 250 W | 450 W |
| Ausgabe | 1x DVI1x HDMI1x VGA | 2x DVI1x S-Video |
| Stromverbindung | None | 1x 6-pin + 1x 8-pin |
| Board-Nummer | C334 | B400 |
| Breite | — | 113 mm 4.4 inches |
| Höhe | — | 39 mm 1.5 inches |
Grafik-Features
| DirectX | 11.2 (11_0) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 4.4 | 3.3 (full) 4.0 (partial) |
| OpenCL | 1.2 | — |
| Vulkan | — | — |
| Shader-Modell | 5.0 | 4.1 |
