AMD Radeon HD 8770 OEM vs NVIDIA GRID K220Q
Processeur graphique
| Nom du GPU | Bonaire | GK104 |
|---|---|---|
| GPU variant | Bonaire XT (215-0839039) | — |
| Architecture | GCN 2.0 | Kepler |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 28 nm |
| Transistors | 2,080 million | 3,540 million |
| Taille des matrices | 160 mm² | 294 mm² |
Carte graphique
| Date de publication | Sep 2nd, 2013 | Jul 2nd, 2014 |
|---|---|---|
| Génération | Sea Islands | GRID |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Prédécesseur | Southern Islands | — |
| Successeur | Volcanic Islands | — |
| Prix de lancement | — | 469 USD |
Vitesse clock
| GPU clock | 1050 MHz | 745 MHz |
|---|---|---|
| Mémoire clock | 1500 MHz 6 Gbps effective | 1250 MHz 5 Gbps effective |
Mémoire
| Taille de la mémoire | 1024 MB | 512 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 128 bit | 256 bit |
| Bande passante | 96.00 GB/s | 160.0 GB/s |
Render Config
| Shading units | 896 | 1536 |
|---|---|---|
| TMUs | 56 | 128 |
| ROPs | 16 | 32 |
| Compute units | 14 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 256 KB | 512 KB |
| Comptage SMX | — | 8 |
Performance théorique
| Taux de pixel | 16.80 GPixel/s | 23.84 GPixel/s |
|---|---|---|
| Taux de texture | 58.80 GTexel/s | 95.36 GTexel/s |
| FP32 (float) performance | 1.882 TFLOPS | 2.289 TFLOPS |
| FP64 (double) performance | 117.6 GFLOPS (1:16) | 95.36 GFLOPS (1:24) |
Board Design
| Taille Slot | Dual-slot | IGP |
|---|---|---|
| Longueur | 183 mm 7.2 inches | — |
| TDP | 85 W | 225 W |
| Suggestions pour le PSU | 250 W | 550 W |
| Sorties | 1x DVI1x HDMI2x mini-DisplayPort | No outputs |
| Connecteurs de puissance | 1x 6-pin | — |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.3 | 5.1 |
| CUDA | — | 3.0 |
