AMD Radeon HD 8870 OEM vs ATI Radeon 9800 XT Mac Edition
Grafikprozessor
| GPU Name | Pitcairn | R360 |
|---|---|---|
| GPU Variante | Pitcairn XT (215-0828047) | R360 (215R9RBKA11F) |
| Architektur | GCN 1.0 | Rage 9 |
| Hersteller | TSMC | TSMC |
| Prozessgröße | 28 nm | 150 nm |
| Transistoren | 2,800 million | 117 million |
| Chipgröße | 212 mm² | 218 mm² |
Grafikkarte
| Veröffentlichungsdatum | Jan 8th, 2013 | Mar 14th, 2004 |
|---|---|---|
| Generation | Sea Islands | Radeon R300 |
| Produktion | End-of-life | End-of-life |
| Businterface | PCIe 3.0 x16 | AGP Pro 8x |
| Vorgänger | Southern Islands | Radeon R200 |
| Nachfolger | Volcanic Islands | Radeon R400 AGP |
| Reviews | — | 20 in our database |
Takt-Geschwindigkeiten
| GPU-Taktung | 1000 MHz | 412 MHz |
|---|---|---|
| Speicher-Taktung | 1200 MHz 4.8 Gbps effective | 365 MHz 730 Mbps effective |
Speicher
| Speichergröße | 2 GB | 256 MB |
|---|---|---|
| Speichertyp | GDDR5 | DDR |
| Speicherbus | 256 bit | 256 bit |
| Bandbreite | 153.6 GB/s | 23.36 GB/s |
Render-Konfiguration
| Shading-Einheiten | 1280 | — |
|---|---|---|
| TMUs | 80 | 8 |
| ROPs | 32 | 8 |
| Compute Units | 20 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 512 KB | — |
| Pixelshader | — | 8 |
| Vertex-Shader | — | 4 |
Theoretische Leistung
| Pixelrate | 32.00 GPixel/s | 3.296 GPixel/s |
|---|---|---|
| Texturrate | 80.00 GTexel/s | 3.296 GTexel/s |
| FP32 (float) Leistung | 2.560 TFLOPS | — |
| FP64 (double) Leistung | 160.0 GFLOPS (1:16) | — |
| Vertex-Rate | — | 412.0 MVertices/s |
Boarddesign
| Steckplatzbreite | Dual-slot | Single-slot |
|---|---|---|
| Länge | 241 mm 9.5 inches | — |
| TDP | 175 W | 60 W |
| Vorgeschlagenes Netzteil | 450 W | 250 W |
| Ausgabe | 1x DVI1x HDMI2x mini-DisplayPort | 2x DVI |
| Stromverbindung | 2x 6-pin | None |
| Board-Nummer | C401 | — |
Grafik-Features
| DirectX | 12 (11_1) | 9.0 |
|---|---|---|
| OpenGL | 4.6 | 2.0 |
| OpenCL | 1.2 | — |
| Vulkan | 1.2 | — |
| Shader-Modell | 5.1 | — |
| Pixelshader | — | 2.0 |
| Vertex-Shader | — | 2.0 |
