AMD Radeon HD 7970 X2 vs AMD Radeon Pro Vega 20
Processeur graphique
| Nom du GPU | New Zealand | Vega 12 |
|---|---|---|
| Architecture | GCN 1.0 | GCN 5.0 |
| Fonderie | TSMC | GlobalFoundries |
| Taille du processus | 28 nm | 14 nm |
| Transistors | 4,313 million | unknown |
| Taille des matrices | 352 mm² | unknown |
| GPU variant | — | Vega 12 XTA |
Carte graphique
| Date de publication | Aug 31st, 2012 | — |
|---|---|---|
| Génération | Southern Islands | — |
| Production | End-of-life | — |
| Prix de lancement | 899 USD | — |
| Bus interface | PCIe 3.0 x16 | — |
| Critiques | 37 in our database | — |
| Prédécesseur | Northern Islands | — |
| Successeur | Sea Islands | — |
Vitesse clock
| GPU clock | 925 MHz | — |
|---|---|---|
| Mémoire clock | 1375 MHz 5.5 Gbps effective | 740 MHz 1480 Mbps effective |
| Base clock | — | 815 MHz |
| Boost clock | — | 1283 MHz |
Mémoire
| Taille de la mémoire | 3 GB | 4 GB |
|---|---|---|
| Type de mémoire | GDDR5 | HBM2 |
| Bus mémoire | 384 bit | 1024 bit |
| Bande passante | 264.0 GB/s | 189.4 GB/s |
Render Config
| Shading units | 2048 | 1280 |
|---|---|---|
| TMUs | 128 | 80 |
| ROPs | 32 | 32 |
| Compute units | 32 | 20 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 768 KB | 1024 KB |
Performance théorique
| Taux de pixel | 29.60 GPixel/s | 41.06 GPixel/s |
|---|---|---|
| Taux de texture | 118.4 GTexel/s | 102.6 GTexel/s |
| FP32 (float) performance | 3.789 TFLOPS | 3.284 TFLOPS |
| FP64 (double) performance | 947.2 GFLOPS (1:4) | 205.3 GFLOPS (1:16) |
| FP16 (half) performance | — | 6.569 TFLOPS (2:1) |
Board Design
| Taille Slot | Triple-slot | IGP |
|---|---|---|
| Longueur | 308 mm 12.1 inches | — |
| Taille | 137 mm 5.4 inches | — |
| Taille | 62 mm 2.4 inches | — |
| TDP | 500 W | 100 W |
| Suggestions pour le PSU | 900 W | — |
| Sorties | 2x DVI1x HDMI2x mini-DisplayPort | No outputs |
| Connecteurs de puissance | 3x 8-pin | — |
| Board number | C386 | — |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.3 |
AUTRES CARACTÉRISTIQUES
Graphiques mobiles
| Date de publication | — | Nov 14th, 2018 |
|---|---|---|
| Génération | — | Radeon Pro Mac (Vega Series) |
| Production | — | Active |
| Bus interface | — | PCIe 3.0 x16 |
