AMD Radeon HD 7870 GHz Edition vs AMD Radeon RX 550 640SP
Grafikprozessor
| GPU Name | Pitcairn | Baffin |
|---|---|---|
| GPU Variante | Pitcairn XT (215-0828047) | Baffin LE |
| Architektur | GCN 1.0 | GCN 4.0 |
| Hersteller | TSMC | GlobalFoundries |
| Prozessgröße | 28 nm | 14 nm |
| Transistoren | 2,800 million | 3,000 million |
| Chipgröße | 212 mm² | 123 mm² |
Grafikkarte
| Veröffentlichungsdatum | Mar 5th, 2012 | Oct 13th, 2017 |
|---|---|---|
| Generation | Southern Islands | Polaris |
| Produktion | End-of-life | Active |
| Originalpreis | 349 USD | — |
| Businterface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Reviews | 95 in our database | — |
| Vorgänger | Northern Islands | Arctic Islands |
| Nachfolger | Sea Islands | Vega |
Takt-Geschwindigkeiten
| GPU-Taktung | 1000 MHz | — |
|---|---|---|
| Speicher-Taktung | 1200 MHz 4.8 Gbps effective | 1500 MHz 6 Gbps effective |
| Basis-Taktfrequenz | — | 1019 MHz |
| Boost-Takt | — | 1071 MHz |
Speicher
| Speichergröße | 2 GB | 2 GB |
|---|---|---|
| Speichertyp | GDDR5 | GDDR5 |
| Speicherbus | 256 bit | 128 bit |
| Bandbreite | 153.6 GB/s | 96.00 GB/s |
Render-Konfiguration
| Shading-Einheiten | 1280 | 640 |
|---|---|---|
| TMUs | 80 | 40 |
| ROPs | 32 | 16 |
| Compute Units | 20 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 1024 KB |
Theoretische Leistung
| Pixelrate | 32.00 GPixel/s | 17.14 GPixel/s |
|---|---|---|
| Texturrate | 80.00 GTexel/s | 42.84 GTexel/s |
| FP32 (float) Leistung | 2.560 TFLOPS | 1,371 GFLOPS |
| FP64 (double) Leistung | 160.0 GFLOPS (1:16) | 85.68 GFLOPS (1:16) |
| FP16 (half) Leistung | — | 1,371 GFLOPS (1:1) |
Boarddesign
| Steckplatzbreite | Dual-slot | Dual-slot |
|---|---|---|
| Länge | 241 mm 9.5 inches | 145 mm 5.7 inches |
| TDP | 175 W | 60 W |
| Vorgeschlagenes Netzteil | 450 W | 250 W |
| Ausgabe | 1x DVI1x HDMI2x mini-DisplayPort | 1x DVI1x HDMI1x DisplayPort |
| Stromverbindung | 2x 6-pin | None |
| Board-Nummer | C401-47 | D090-21 |
Grafik-Features
| DirectX | 12 (11_1) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader-Modell | 5.1 | 6.4 |
