AMD Radeon HD 7870 XT vs AMD Radeon RX 470
Grafikprozessor
| GPU Name | Tahiti | Ellesmere |
|---|---|---|
| GPU Variante | Tahiti LE (215-0821122) | Polaris 10 PRO (215-0876204) |
| Architektur | GCN 1.0 | GCN 4.0 |
| Hersteller | TSMC | GlobalFoundries |
| Prozessgröße | 28 nm | 14 nm |
| Transistoren | 4,313 million | 5,700 million |
| Chipgröße | 352 mm² | 232 mm² |
Grafikkarte
| Veröffentlichungsdatum | Nov 19th, 2012 | Aug 4th, 2016 |
|---|---|---|
| Generation | Southern Islands | Arctic Islands |
| Produktion | End-of-life | Active |
| Originalpreis | 270 USD | 179 USD |
| Businterface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 95 in our database | 46 in our database |
| Vorgänger | Northern Islands | Pirate Islands |
| Nachfolger | Sea Islands | Polaris |
Takt-Geschwindigkeiten
| Basis-Taktfrequenz | 925 MHz | 926 MHz |
|---|---|---|
| Boost-Takt | 975 MHz | 1206 MHz |
| Speicher-Taktung | 1500 MHz 6 Gbps effective | 1650 MHz 6.6 Gbps effective |
Speicher
| Speichergröße | 2 GB | 4 GB |
|---|---|---|
| Speichertyp | GDDR5 | GDDR5 |
| Speicherbus | 256 bit | 256 bit |
| Bandbreite | 192.0 GB/s | 211.2 GB/s |
Render-Konfiguration
| Shading-Einheiten | 1536 | 2048 |
|---|---|---|
| TMUs | 96 | 128 |
| ROPs | 32 | 32 |
| Compute Units | 24 | 32 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 2 MB |
Theoretische Leistung
| Pixelrate | 31.20 GPixel/s | 38.59 GPixel/s |
|---|---|---|
| Texturrate | 93.60 GTexel/s | 154.4 GTexel/s |
| FP32 (float) Leistung | 2.995 TFLOPS | 4.940 TFLOPS |
| FP64 (double) Leistung | 748.8 GFLOPS (1:4) | 308.7 GFLOPS (1:16) |
| FP16 (half) Leistung | — | 4.940 TFLOPS (1:1) |
Boarddesign
| Steckplatzbreite | Dual-slot | Dual-slot |
|---|---|---|
| Länge | 267 mm 10.5 inches | 240 mm 9.4 inches |
| TDP | 185 W | 120 W |
| Vorgeschlagenes Netzteil | 450 W | 300 W |
| Ausgabe | 1x DVI1x HDMI2x mini-DisplayPort | 1x HDMI3x DisplayPort |
| Stromverbindung | 2x 6-pin | 1x 6-pin |
| Board-Nummer | C474 | C940, D000-03, D009-07 |
| Breite | — | 95 mm 3.7 inches |
| Höhe | — | 35 mm 1.4 inches |
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 |
