AMD Radeon R7 250X vs ATI Radeon HD 5870
Processeur graphique
| Nom du GPU | Cape Verde | Cypress |
|---|---|---|
| GPU variant | Cape Verde XT | Cypress XT (215-0735033) |
| Architecture | GCN 1.0 | TeraScale 2 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 40 nm |
| Transistors | 1,500 million | 2,154 million |
| Taille des matrices | 123 mm² | 334 mm² |
Carte graphique
| Date de publication | Feb 13th, 2014 | Sep 23rd, 2009 |
|---|---|---|
| Génération | Volcanic Islands | Evergreen |
| Production | End-of-life | End-of-life |
| Prix de lancement | 99 USD | 399 USD |
| Bus interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | Sea Islands | Radeon R700 |
| Successeur | Pirate Islands | Northern Islands |
| Critiques | — | 171 in our database |
Vitesse clock
| GPU clock | 950 MHz | 850 MHz |
|---|---|---|
| Mémoire clock | 1125 MHz 4.5 Gbps effective | 1200 MHz 4.8 Gbps effective |
Mémoire
| Taille de la mémoire | 1024 MB | 1024 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 128 bit | 256 bit |
| Bande passante | 72.00 GB/s | 153.6 GB/s |
Render Config
| Shading units | 640 | 1600 |
|---|---|---|
| TMUs | 40 | 80 |
| ROPs | 16 | 32 |
| Compute units | 10 | 20 |
| Cache L1 | 16 KB (per CU) | 8 KB (per CU) |
| Cache L2 | 256 KB | 512 KB |
Performance théorique
| Taux de pixel | 15.20 GPixel/s | 27.20 GPixel/s |
|---|---|---|
| Taux de texture | 38.00 GTexel/s | 68.00 GTexel/s |
| FP32 (float) performance | 1,216 GFLOPS | 2.720 TFLOPS |
| FP64 (double) performance | 76.00 GFLOPS (1:16) | 544.0 GFLOPS (1:5) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 210 mm 8.3 inches | 280 mm 11 inches |
| TDP | 80 W | 188 W |
| Suggestions pour le PSU | 250 W | 450 W |
| Sorties | 1x DVI1x HDMI2x mini-DisplayPort | 2x DVI1x HDMI1x DisplayPort |
| Connecteurs de puissance | 1x 6-pin | 2x 6-pin |
| Board number | C441, C698 | C001-37 |
| Taille | — | 111 mm 4.4 inches |
| Taille | — | 37 mm 1.5 inches |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 5.0 |
