AMD Radeon Pro 455 vs NVIDIA GeForce GTX 675MX Mac Edition
Processeur graphique
| Nom du GPU | Baffin | GK104 |
|---|---|---|
| GPU variant | Baffin PRO | N13E-GSR-A2 |
| Architecture | GCN 4.0 | Kepler |
| Fonderie | GlobalFoundries | TSMC |
| Taille du processus | 14 nm | 28 nm |
| Transistors | 3,000 million | 3,540 million |
| Taille des matrices | 123 mm² | 294 mm² |
Graphiques mobiles
| Date de publication | Oct 30th, 2016 | Apr 1st, 2013 |
|---|---|---|
| Génération | Radeon Pro Mac (400 Series) | GeForce 600M |
| Production | Active | End-of-life |
| Bus interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Prédécesseur | — | GeForce 500M |
| Successeur | — | GeForce 700M |
Vitesse clock
| GPU clock | 855 MHz | 719 MHz |
|---|---|---|
| Mémoire clock | 1270 MHz 5.1 Gbps effective | 1250 MHz 5 Gbps effective |
Mémoire
| Taille de la mémoire | 2 GB | 1024 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 128 bit | 256 bit |
| Bande passante | 81.28 GB/s | 160.0 GB/s |
Render Config
| Shading units | 768 | 1344 |
|---|---|---|
| TMUs | 48 | 112 |
| ROPs | 16 | 32 |
| Compute units | 12 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 1024 KB | 512 KB |
| Comptage SMX | — | 7 |
Performance théorique
| Taux de pixel | 13.68 GPixel/s | 20.13 GPixel/s |
|---|---|---|
| Taux de texture | 41.04 GTexel/s | 80.53 GTexel/s |
| FP16 (half) performance | 1,313 GFLOPS (1:1) | — |
| FP32 (float) performance | 1,313 GFLOPS | 1.933 TFLOPS |
| FP64 (double) performance | 82.08 GFLOPS (1:16) | 80.53 GFLOPS (1:24) |
Board Design
| Taille Slot | MXM Module | — |
|---|---|---|
| TDP | 35 W | 100 W |
| Sorties | No outputs | No outputs |
| Connecteurs de puissance | None | — |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.4 | 5.1 |
| CUDA | — | 3.0 |
