AMD Radeon R9 285 vs AMD Radeon RX 580X
Processeur graphique
| Nom du GPU | Tonga | Polaris 20 |
|---|---|---|
| GPU variant | Tonga PRO (215-0851128) | Polaris 20 XTX (215-0910038) |
| Architecture | GCN 3.0 | GCN 4.0 |
| Fonderie | TSMC | GlobalFoundries |
| Taille du processus | 28 nm | 14 nm |
| Transistors | 5,000 million | 5,700 million |
| Taille des matrices | 366 mm² | 232 mm² |
Carte graphique
| Date de publication | Sep 2nd, 2014 | Apr 11th, 2018 |
|---|---|---|
| Génération | Volcanic Islands | Polaris |
| Production | End-of-life | Active |
| Prix de lancement | 249 USD | — |
| Bus interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Critiques | 59 in our database | — |
| Prédécesseur | Sea Islands | Polaris |
| Successeur | Pirate Islands | Vega |
Vitesse clock
| GPU clock | 918 MHz | — |
|---|---|---|
| Mémoire clock | 1375 MHz 5.5 Gbps effective | 2000 MHz 8 Gbps effective |
| Base clock | — | 1257 MHz |
| Boost clock | — | 1340 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 8 GB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 256 bit | 256 bit |
| Bande passante | 176.0 GB/s | 256.0 GB/s |
Render Config
| Shading units | 1792 | 2304 |
|---|---|---|
| TMUs | 112 | 144 |
| ROPs | 32 | 32 |
| Compute units | 28 | 36 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 2 MB |
Performance théorique
| Taux de pixel | 29.38 GPixel/s | 42.88 GPixel/s |
|---|---|---|
| Taux de texture | 102.8 GTexel/s | 193.0 GTexel/s |
| FP16 (half) performance | 3.290 TFLOPS (1:1) | 6.175 TFLOPS (1:1) |
| FP32 (float) performance | 3.290 TFLOPS | 6.175 TFLOPS |
| FP64 (double) performance | 205.6 GFLOPS (1:16) | 385.9 GFLOPS (1:16) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 221 mm 8.7 inches | 241 mm 9.5 inches |
| Taille | 109 mm 4.3 inches | — |
| Taille | 36 mm 1.4 inches | — |
| TDP | 190 W | 185 W |
| Suggestions pour le PSU | 450 W | 450 W |
| Sorties | 2x DVI1x HDMI1x DisplayPort | 1x HDMI3x DisplayPort |
| Connecteurs de puissance | 2x 6-pin | 1x 8-pin |
| Board number | C766 | D009 |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.3 | 6.4 |
