AMD Radeon HD 7470M vs NVIDIA GeForce GT 420M
Processeur graphique
| Nom du GPU | Seymour | GF108 |
|---|---|---|
| GPU variant | Seymour XT (216-0810084) | N11P-GE-A1 |
| Architecture | TeraScale 2 | Fermi |
| Fonderie | TSMC | TSMC |
| Taille du processus | 40 nm | 40 nm |
| Transistors | 370 million | 585 million |
| Taille des matrices | 67 mm² | 116 mm² |
Graphiques mobiles
| Date de publication | Jan 7th, 2012 | Sep 3rd, 2010 |
|---|---|---|
| Génération | London (HD 7400M) | GeForce 400M |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | Vancouver | GeForce 300M |
| Successeur | Solar System | GeForce 500M |
Vitesse clock
| Base clock | 750 MHz | — |
|---|---|---|
| Boost clock | 800 MHz | — |
| Mémoire clock | 900 MHz 1800 Mbps effective | 800 MHz 1600 Mbps effective |
| GPU clock | — | 500 MHz |
| Shader clock | — | 1000 MHz |
Mémoire
| Taille de la mémoire | 1024 MB | 512 MB |
|---|---|---|
| Type de mémoire | DDR3 | DDR3 |
| Bus mémoire | 64 bit | 128 bit |
| Bande passante | 14.40 GB/s | 25.60 GB/s |
Render Config
| Shading units | 160 | 96 |
|---|---|---|
| TMUs | 8 | 16 |
| ROPs | 4 | 4 |
| Compute units | 2 | — |
| Cache L1 | 8 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 128 KB | 256 KB |
| Comptage SM | — | 2 |
Performance théorique
| Taux de pixel | 3.200 GPixel/s | 2.000 GPixel/s |
|---|---|---|
| Taux de texture | 6.400 GTexel/s | 8.000 GTexel/s |
| FP32 (float) performance | 256.0 GFLOPS | 192.0 GFLOPS |
| FP64 (double) performance | — | 16.00 GFLOPS (1:12) |
Board Design
| TDP | 25 W | 23 W |
|---|---|---|
| Sorties | No outputs | No outputs |
Caractéristiques graphiques
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 2.1 |
