AMD Radeon HD 6870 vs ATI Radeon HD 5970
Processeur graphique
| Nom du GPU | Barts | Hemlock |
|---|---|---|
| GPU variant | Barts XT (215-0798000) | Hemlock XT (215-0735075) |
| Architecture | TeraScale 2 | TeraScale 2 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 40 nm | 40 nm |
| Transistors | 1,700 million | 2,154 million |
| Taille des matrices | 255 mm² | 334 mm² |
Carte graphique
| Date de publication | Oct 21st, 2010 | Nov 18th, 2009 |
|---|---|---|
| Génération | Northern Islands | Evergreen |
| Production | End-of-life | End-of-life |
| Prix de lancement | 239 USD | 699 USD |
| Bus interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Critiques | 170 in our database | 74 in our database |
| Prédécesseur | Evergreen | Radeon R700 |
| Successeur | Southern Islands | Northern Islands |
Vitesse clock
| GPU clock | 900 MHz | 725 MHz |
|---|---|---|
| Mémoire clock | 1050 MHz 4.2 Gbps effective | 1000 MHz 4 Gbps effective |
Mémoire
| Taille de la mémoire | 1024 MB | 1024 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 256 bit | 256 bit |
| Bande passante | 134.4 GB/s | 128.0 GB/s |
Render Config
| Shading units | 1120 | 1600 |
|---|---|---|
| TMUs | 56 | 80 |
| ROPs | 32 | 32 |
| Compute units | 14 | 20 |
| Cache L1 | 8 KB (per CU) | 8 KB (per CU) |
| Cache L2 | 512 KB | 512 KB |
Performance théorique
| Taux de pixel | 28.80 GPixel/s | 23.20 GPixel/s |
|---|---|---|
| Taux de texture | 50.40 GTexel/s | 58.00 GTexel/s |
| FP32 (float) performance | 2.016 TFLOPS | 2.320 TFLOPS |
| FP64 (double) performance | — | 464.0 GFLOPS (1:5) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 247 mm 9.7 inches | 311 mm 12.2 inches |
| Taille | 111 mm 4.4 inches | 111 mm 4.4 inches |
| Taille | 36 mm 1.4 inches | 40 mm 1.6 inches |
| TDP | 151 W | 294 W |
| Suggestions pour le PSU | 450 W | 600 W |
| Sorties | 2x DVI1x HDMI2x mini-DisplayPort | 2x DVI1x mini-DisplayPort |
| Connecteurs de puissance | 2x 6-pin | 1x 6-pin + 1x 8-pin |
| Board number | C222 | C000-37 |
Caractéristiques graphiques
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.0 |
