AMD Radeon RX 480 vs AMD Radeon RX 550
Processeur graphique
| Nom du GPU | Ellesmere | Lexa |
|---|---|---|
| GPU variant | Polaris 10 XT (215-0876184) | Lexa PRO (215-0904018) |
| Architecture | GCN 4.0 | GCN 4.0 |
| Fonderie | GlobalFoundries | GlobalFoundries |
| Taille du processus | 14 nm | 14 nm |
| Transistors | 5,700 million | 2,200 million |
| Taille des matrices | 232 mm² | 103 mm² |
Carte graphique
| Date de publication | Jun 29th, 2016 | Apr 20th, 2017 |
|---|---|---|
| Génération | Arctic Islands | Polaris |
| Production | Active | End-of-life |
| Prix de lancement | 229 USD | 79 USD |
| Bus interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Critiques | 86 in our database | — |
| Prédécesseur | Pirate Islands | Arctic Islands |
| Successeur | Polaris | Vega |
Vitesse clock
| Base clock | 1120 MHz | 1100 MHz |
|---|---|---|
| Boost clock | 1266 MHz | 1183 MHz |
| Mémoire clock | 2000 MHz 8 Gbps effective | 1750 MHz 7 Gbps effective |
Mémoire
| Taille de la mémoire | 8 GB | 2 GB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 256 bit | 128 bit |
| Bande passante | 256.0 GB/s | 112.0 GB/s |
Render Config
| Shading units | 2304 | 512 |
|---|---|---|
| TMUs | 144 | 32 |
| ROPs | 32 | 16 |
| Compute units | 36 | 8 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 2 MB | 512 KB |
Performance théorique
| Taux de pixel | 40.51 GPixel/s | 18.93 GPixel/s |
|---|---|---|
| Taux de texture | 182.3 GTexel/s | 37.86 GTexel/s |
| FP16 (half) performance | 5.834 TFLOPS (1:1) | 1,211 GFLOPS (1:1) |
| FP32 (float) performance | 5.834 TFLOPS | 1,211 GFLOPS |
| FP64 (double) performance | 364.6 GFLOPS (1:16) | 75.71 GFLOPS (1:16) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 240 mm 9.4 inches | 145 mm 5.7 inches |
| Taille | 95 mm 3.7 inches | — |
| Taille | 35 mm 1.4 inches | — |
| TDP | 150 W | 50 W |
| Suggestions pour le PSU | 450 W | 250 W |
| Sorties | 1x HDMI3x DisplayPort | 1x DVI1x HDMI1x DisplayPort |
| Connecteurs de puissance | 1x 6-pin | None |
| Board number | C940, D009-47 | D090-01 |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
