AMD Radeon 630 Mobile vs AMD Radeon HD 7870M
Processeur graphique
| Nom du GPU | Polaris 23 | Heathrow |
|---|---|---|
| GPU variant | Polaris 23 MXL | Heathrow XT (216-0835033) |
| Architecture | GCN 4.0 | GCN 1.0 |
| Fonderie | GlobalFoundries | TSMC |
| Taille du processus | 14 nm | 28 nm |
| Transistors | 2,200 million | 1,500 million |
| Taille des matrices | 103 mm² | 123 mm² |
Graphiques mobiles
| Date de publication | May 13th, 2019 | Apr 24th, 2012 |
|---|---|---|
| Génération | Mobility Radeon (M600) | London (HD 7800M) |
| Production | Active | End-of-life |
| Bus interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Prédécesseur | Crystal System | Vancouver |
| Successeur | — | Solar System |
Vitesse clock
| Base clock | 1082 MHz | — |
|---|---|---|
| Boost clock | 1211 MHz | — |
| Mémoire clock | 1500 MHz 6 Gbps effective | 1000 MHz 4 Gbps effective |
| GPU clock | — | 800 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 2 GB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 128 bit | 128 bit |
| Bande passante | 96.00 GB/s | 64.00 GB/s |
Render Config
| Shading units | 512 | 640 |
|---|---|---|
| TMUs | 32 | 40 |
| ROPs | 16 | 16 |
| Compute units | 8 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 256 KB |
Performance théorique
| Taux de pixel | 19.38 GPixel/s | 12.80 GPixel/s |
|---|---|---|
| Taux de texture | 38.75 GTexel/s | 32.00 GTexel/s |
| FP16 (half) performance | 1,240 GFLOPS (1:1) | — |
| FP32 (float) performance | 1,240 GFLOPS | 1,024 GFLOPS |
| FP64 (double) performance | 77.50 GFLOPS (1:16) | 64.00 GFLOPS (1:16) |
Board Design
| Taille Slot | Dual-slot | — |
|---|---|---|
| Longueur | 145 mm 5.7 inches | — |
| TDP | 50 W | 45 W |
| Sorties | 1x DVI1x HDMI1x DisplayPort | No outputs |
| Connecteurs de puissance | None | — |
| Board number | D090 | — |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 1.2 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 5.1 |
