AMD Radeon HD 6870 vs ATI Radeon HD 5870 Mac Edition
Grafikprozessor
| GPU Name | Barts | Cypress |
|---|---|---|
| GPU Variante | Barts XT (215-0798000) | Cypress XT (215-0735033) |
| Architektur | TeraScale 2 | TeraScale 2 |
| Hersteller | TSMC | TSMC |
| Prozessgröße | 40 nm | 40 nm |
| Transistoren | 1,700 million | 2,154 million |
| Chipgröße | 255 mm² | 334 mm² |
Grafikkarte
| Veröffentlichungsdatum | Oct 21st, 2010 | Jun 30th, 2010 |
|---|---|---|
| Generation | Northern Islands | Evergreen |
| Produktion | End-of-life | End-of-life |
| Originalpreis | 239 USD | 479 USD |
| Businterface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 170 in our database | 171 in our database |
| Vorgänger | Evergreen | Radeon R700 |
| Nachfolger | Southern Islands | Northern Islands |
Takt-Geschwindigkeiten
| GPU-Taktung | 900 MHz | 850 MHz |
|---|---|---|
| Speicher-Taktung | 1050 MHz 4.2 Gbps effective | 1195 MHz 4.8 Gbps effective |
Speicher
| Speichergröße | 1024 MB | 1024 MB |
|---|---|---|
| Speichertyp | GDDR5 | GDDR5 |
| Speicherbus | 256 bit | 256 bit |
| Bandbreite | 134.4 GB/s | 153.0 GB/s |
Render-Konfiguration
| Shading-Einheiten | 1120 | 1600 |
|---|---|---|
| TMUs | 56 | 80 |
| ROPs | 32 | 32 |
| Compute Units | 14 | 20 |
| Cache L1 | 8 KB (per CU) | 8 KB (per CU) |
| Cache L2 | 512 KB | 512 KB |
Theoretische Leistung
| Pixelrate | 28.80 GPixel/s | 27.20 GPixel/s |
|---|---|---|
| Texturrate | 50.40 GTexel/s | 68.00 GTexel/s |
| FP32 (float) Leistung | 2.016 TFLOPS | 2.720 TFLOPS |
| FP64 (double) Leistung | — | 544.0 GFLOPS (1:5) |
Boarddesign
| Steckplatzbreite | Dual-slot | Dual-slot |
|---|---|---|
| Länge | 247 mm 9.7 inches | 279 mm 11 inches |
| Breite | 111 mm 4.4 inches | — |
| Höhe | 36 mm 1.4 inches | — |
| TDP | 151 W | 228 W |
| Vorgeschlagenes Netzteil | 450 W | 550 W |
| Ausgabe | 2x DVI1x HDMI2x mini-DisplayPort | 1x DVI2x mini-DisplayPort |
| Stromverbindung | 2x 6-pin | 2x 6-pin |
| Board-Nummer | C222 | C078 |
Grafik-Features
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | — | — |
| Shader-Modell | 5.0 | 5.0 |
