AMD Radeon HD 8870 OEM vs NVIDIA Quadro CX
Processeur graphique
| Nom du GPU | Pitcairn | GT200B |
|---|---|---|
| GPU variant | Pitcairn XT (215-0828047) | — |
| Architecture | GCN 1.0 | Tesla 2.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 55 nm |
| Transistors | 2,800 million | 1,400 million |
| Taille des matrices | 212 mm² | 470 mm² |
Carte graphique
| Date de publication | Jan 8th, 2013 | Nov 11th, 2008 |
|---|---|---|
| Génération | Sea Islands | Quadro CX |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | Southern Islands | — |
| Successeur | Volcanic Islands | — |
| Prix de lancement | — | 1,999 USD |
| Critiques | — | 26 in our database |
Vitesse clock
| GPU clock | 1000 MHz | 602 MHz |
|---|---|---|
| Mémoire clock | 1200 MHz 4.8 Gbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1204 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 1536 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR3 |
| Bus mémoire | 256 bit | 384 bit |
| Bande passante | 153.6 GB/s | 76.80 GB/s |
Render Config
| Shading units | 1280 | 192 |
|---|---|---|
| TMUs | 80 | 64 |
| ROPs | 32 | 24 |
| Compute units | 20 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 512 KB | 192 KB |
| Comptage SM | — | 24 |
Performance théorique
| Taux de pixel | 32.00 GPixel/s | 14.45 GPixel/s |
|---|---|---|
| Taux de texture | 80.00 GTexel/s | 38.53 GTexel/s |
| FP32 (float) performance | 2.560 TFLOPS | 462.3 GFLOPS |
| FP64 (double) performance | 160.0 GFLOPS (1:16) | 57.79 GFLOPS (1:8) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 241 mm 9.5 inches | 267 mm 10.5 inches |
| TDP | 175 W | 150 W |
| Suggestions pour le PSU | 450 W | 450 W |
| Sorties | 1x DVI1x HDMI2x mini-DisplayPort | 1x DVI2x DisplayPort1x S-Video |
| Connecteurs de puissance | 2x 6-pin | 1x 6-pin |
| Board number | C401 | P607 |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 4.0 |
| CUDA | — | 1.3 |
