AMD Radeon R7 250 vs NVIDIA GeForce GTX 260
Processeur graphique
| Nom du GPU | Cape Verde | GT200 |
|---|---|---|
| GPU variant | Cape Verde PRO | G200-100-A2 |
| Architecture | GCN 1.0 | Tesla 2.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 65 nm |
| Transistors | 1,500 million | 1,400 million |
| Taille des matrices | 123 mm² | 576 mm² |
Carte graphique
| Date de publication | Oct 8th, 2013 | Jun 16th, 2008 |
|---|---|---|
| Génération | Volcanic Islands | GeForce 200 |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | Sea Islands | GeForce 9 |
| Successeur | Pirate Islands | GeForce 400 |
| Prix de lancement | — | 449 USD |
| Critiques | — | 137 in our database |
Vitesse clock
| GPU clock | 700 MHz | 576 MHz |
|---|---|---|
| Mémoire clock | 900 MHz 1800 Mbps effective | 999 MHz 1998 Mbps effective |
| Shader clock | — | 1242 MHz |
Mémoire
| Taille de la mémoire | 1024 MB | 896 MB |
|---|---|---|
| Type de mémoire | DDR3 | GDDR3 |
| Bus mémoire | 128 bit | 448 bit |
| Bande passante | 28.80 GB/s | 111.9 GB/s |
Render Config
| Shading units | 512 | 192 |
|---|---|---|
| TMUs | 32 | 64 |
| ROPs | 16 | 28 |
| Compute units | 8 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | 224 KB |
| Comptage SM | — | 24 |
Performance théorique
| Taux de pixel | 11.20 GPixel/s | 16.13 GPixel/s |
|---|---|---|
| Taux de texture | 22.40 GTexel/s | 36.86 GTexel/s |
| FP32 (float) performance | 716.8 GFLOPS | 476.9 GFLOPS |
| FP64 (double) performance | 44.80 GFLOPS (1:16) | 59.62 GFLOPS (1:8) |
Board Design
| Taille Slot | Single-slot | Dual-slot |
|---|---|---|
| Longueur | 168 mm 6.6 inches | 267 mm 10.5 inches |
| TDP | 55 W | 182 W |
| Suggestions pour le PSU | 250 W | 450 W |
| Sorties | 1x DVI1x HDMI1x DisplayPort | 2x DVI1x S-Video |
| Connecteurs de puissance | None | 2x 6-pin |
| Board number | — | P651 |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 4.0 |
| CUDA | — | 1.3 |
