AMD Radeon R7 250 vs ATI Radeon HD 5450
Processeur graphique
| Nom du GPU | Cape Verde | Cedar |
|---|---|---|
| GPU variant | Cape Verde PRO | Cedar PRO |
| Architecture | GCN 1.0 | TeraScale 2 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 40 nm |
| Transistors | 1,500 million | 292 million |
| Taille des matrices | 123 mm² | 59 mm² |
Carte graphique
| Date de publication | Oct 8th, 2013 | Feb 4th, 2010 |
|---|---|---|
| Génération | Volcanic Islands | Evergreen |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | Sea Islands | Radeon R700 |
| Successeur | Pirate Islands | Northern Islands |
| Critiques | — | 34 in our database |
Vitesse clock
| GPU clock | 700 MHz | 650 MHz |
|---|---|---|
| Mémoire clock | 900 MHz 1800 Mbps effective | 400 MHz 800 Mbps effective |
Mémoire
| Taille de la mémoire | 1024 MB | 512 MB |
|---|---|---|
| Type de mémoire | DDR3 | DDR2 |
| Bus mémoire | 128 bit | 64 bit |
| Bande passante | 28.80 GB/s | 6.400 GB/s |
Render Config
| Shading units | 512 | 80 |
|---|---|---|
| TMUs | 32 | 8 |
| ROPs | 16 | 4 |
| Compute units | 8 | 2 |
| Cache L1 | 16 KB (per CU) | 8 KB (per CU) |
| Cache L2 | 256 KB | 128 KB |
Performance théorique
| Taux de pixel | 11.20 GPixel/s | 2.600 GPixel/s |
|---|---|---|
| Taux de texture | 22.40 GTexel/s | 5.200 GTexel/s |
| FP32 (float) performance | 716.8 GFLOPS | 104.0 GFLOPS |
| FP64 (double) performance | 44.80 GFLOPS (1:16) | — |
Board Design
| Taille Slot | Single-slot | Single-slot |
|---|---|---|
| Longueur | 168 mm 6.6 inches | 170 mm 6.7 inches |
| TDP | 55 W | 19 W |
| Suggestions pour le PSU | 250 W | 200 W |
| Sorties | 1x DVI1x HDMI1x DisplayPort | 1x DVI1x HDMI1x VGA |
| Connecteurs de puissance | None | None |
| Board number | — | B750, B982, C026, C027, C028, C070, C093, C096, C267 |
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 |
