AMD Radeon R7 250 vs NVIDIA GeForce GT 545
Processeur graphique
| Nom du GPU | Cape Verde | GF116 |
|---|---|---|
| GPU variant | Cape Verde PRO | — |
| Architecture | GCN 1.0 | Fermi 2.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 40 nm |
| Transistors | 1,500 million | 1,170 million |
| Taille des matrices | 123 mm² | 238 mm² |
Carte graphique
| Date de publication | Oct 8th, 2013 | May 14th, 2011 |
|---|---|---|
| Génération | Volcanic Islands | GeForce 500 |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | Sea Islands | GeForce 400 |
| Successeur | Pirate Islands | GeForce 600 |
| Prix de lancement | — | 149 USD |
Vitesse clock
| GPU clock | 700 MHz | 720 MHz |
|---|---|---|
| Mémoire clock | 900 MHz 1800 Mbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1440 MHz |
Mémoire
| Taille de la mémoire | 1024 MB | 1536 MB |
|---|---|---|
| Type de mémoire | DDR3 | DDR3 |
| Bus mémoire | 128 bit | 192 bit |
| Bande passante | 28.80 GB/s | 38.40 GB/s |
Render Config
| Shading units | 512 | 144 |
|---|---|---|
| TMUs | 32 | 24 |
| ROPs | 16 | 16 |
| Compute units | 8 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 256 KB | 384 KB |
| Comptage SM | — | 3 |
Performance théorique
| Taux de pixel | 11.20 GPixel/s | 4.320 GPixel/s |
|---|---|---|
| Taux de texture | 22.40 GTexel/s | 17.28 GTexel/s |
| FP32 (float) performance | 716.8 GFLOPS | 414.7 GFLOPS |
| FP64 (double) performance | 44.80 GFLOPS (1:16) | 34.56 GFLOPS (1:12) |
Board Design
| Taille Slot | Single-slot | Single-slot |
|---|---|---|
| Longueur | 168 mm 6.6 inches | 145 mm 5.7 inches |
| TDP | 55 W | 70 W |
| Suggestions pour le PSU | 250 W | 250 W |
| Sorties | 1x DVI1x HDMI1x DisplayPort | 1x DVI1x HDMI1x VGA |
| Connecteurs de puissance | None | None |
| Board number | — | P1062 |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 5.1 |
| CUDA | — | 2.1 |
