AMD Radeon HD 6770 vs NVIDIA GeForce GTX 260 OEM
Processeur graphique
| Nom du GPU | Juniper | GT200B |
|---|---|---|
| GPU variant | Juniper XT (215-0754013) | G200-103-B2 |
| Architecture | TeraScale 2 | Tesla 2.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 40 nm | 55 nm |
| Transistors | 1,040 million | 1,400 million |
| Taille des matrices | 166 mm² | 470 mm² |
Carte graphique
| Date de publication | Jan 21st, 2011 | Dec 8th, 2009 |
|---|---|---|
| Génération | Northern Islands | GeForce 200 |
| Production | End-of-life | End-of-life |
| Prix de lancement | 129 USD | — |
| Bus interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Critiques | 35 in our database | 137 in our database |
| Prédécesseur | Evergreen | GeForce 9 |
| Successeur | Southern Islands | GeForce 400 |
Vitesse clock
| GPU clock | 850 MHz | 518 MHz |
|---|---|---|
| Mémoire clock | 1200 MHz 4.8 Gbps effective | 1008 MHz 2 Gbps effective |
| Shader clock | — | 1080 MHz |
Mémoire
| Taille de la mémoire | 1024 MB | 1792 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR3 |
| Bus mémoire | 128 bit | 448 bit |
| Bande passante | 76.80 GB/s | 112.9 GB/s |
Render Config
| Shading units | 800 | 192 |
|---|---|---|
| TMUs | 40 | 64 |
| ROPs | 16 | 28 |
| Compute units | 10 | — |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 256 KB | 224 KB |
| Comptage SM | — | 24 |
Performance théorique
| Taux de pixel | 13.60 GPixel/s | 14.50 GPixel/s |
|---|---|---|
| Taux de texture | 34.00 GTexel/s | 33.15 GTexel/s |
| FP32 (float) performance | 1,360 GFLOPS | 414.7 GFLOPS |
| FP64 (double) performance | — | 51.84 GFLOPS (1:8) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 198 mm 7.8 inches | 267 mm 10.5 inches |
| TDP | 108 W | 182 W |
| Suggestions pour le PSU | 300 W | 450 W |
| Sorties | 2x DVI1x HDMI2x mini-DisplayPort | 2x DVI1x S-Video |
| Connecteurs de puissance | 1x 6-pin | 2x 6-pin |
| Board number | C010 | P898 |
Caractéristiques graphiques
| DirectX | 11.2 (11_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.4 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 4.0 |
| CUDA | — | 1.3 |
