ATI Radeon HD 5850 vs NVIDIA GeForce GT 645 OEM
Processeur graphique
| Nom du GPU | Cypress | GF114 |
|---|---|---|
| GPU variant | Cypress PRO (215-0735043) | — |
| Architecture | TeraScale 2 | Fermi 2.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 40 nm | 40 nm |
| Transistors | 2,154 million | 1,950 million |
| Taille des matrices | 334 mm² | 332 mm² |
Carte graphique
| Date de publication | Sep 30th, 2009 | Apr 24th, 2012 |
|---|---|---|
| Génération | Evergreen | GeForce 600 |
| Production | End-of-life | End-of-life |
| Prix de lancement | 299 USD | — |
| Bus interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Critiques | 101 in our database | — |
| Prédécesseur | Radeon R700 | GeForce 500 |
| Successeur | Northern Islands | GeForce 700 |
Vitesse clock
| GPU clock | 725 MHz | 776 MHz |
|---|---|---|
| Mémoire clock | 1000 MHz 4 Gbps effective | 957 MHz 3.8 Gbps effective |
| Shader clock | — | 1552 MHz |
Mémoire
| Taille de la mémoire | 1024 MB | 1024 MB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 256 bit | 192 bit |
| Bande passante | 128.0 GB/s | 91.87 GB/s |
Render Config
| Shading units | 1440 | 288 |
|---|---|---|
| TMUs | 72 | 48 |
| ROPs | 32 | 24 |
| Compute units | 18 | — |
| Cache L1 | 8 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 512 KB | 384 KB |
| Comptage SM | — | 6 |
Performance théorique
| Taux de pixel | 23.20 GPixel/s | 9.312 GPixel/s |
|---|---|---|
| Taux de texture | 52.20 GTexel/s | 37.25 GTexel/s |
| FP32 (float) performance | 2.088 TFLOPS | 894.0 GFLOPS |
| FP64 (double) performance | 417.6 GFLOPS (1:5) | 74.50 GFLOPS (1:12) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 241 mm 9.5 inches | 210 mm 8.3 inches |
| TDP | 151 W | 102 W |
| Suggestions pour le PSU | 450 W | 300 W |
| Sorties | 2x DVI1x HDMI1x DisplayPort | 2x DVI1x mini-HDMI |
| Connecteurs de puissance | 2x 6-pin | — |
| Board number | C002-37 | — |
Caractéristiques graphiques
| DirectX | 11.2 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 5.1 |
| CUDA | — | 2.1 |
