NVIDIA Quadro K420 vs NVIDIA Quadro K620
Processeur graphique
| Nom du GPU | GK107 | GM107 |
|---|---|---|
| GPU variant | GK107-301-A2 | GM107-850-A2 |
| Architecture | Kepler | Maxwell |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 28 nm |
| Transistors | 1,270 million | 1,870 million |
| Taille des matrices | 118 mm² | 148 mm² |
Carte graphique
| Date de publication | Jul 22nd, 2014 | Jul 22nd, 2014 |
|---|---|---|
| Génération | Quadro | Quadro |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Critiques | 26 in our database | 26 in our database |
Vitesse clock
| GPU clock | 876 MHz | — |
|---|---|---|
| Mémoire clock | 891 MHz 1782 Mbps effective | 900 MHz 1800 Mbps effective |
| Base clock | — | 1058 MHz |
| Boost clock | — | 1124 MHz |
Mémoire
| Taille de la mémoire | 1024 MB | 2 GB |
|---|---|---|
| Type de mémoire | DDR3 | DDR3 |
| Bus mémoire | 128 bit | 128 bit |
| Bande passante | 28.51 GB/s | 28.80 GB/s |
Render Config
| Shading units | 192 | 384 |
|---|---|---|
| TMUs | 16 | 24 |
| ROPs | 16 | 16 |
| Comptage SMX | 1 | — |
| Cache L1 | 16 KB (per SMX) | 64 KB (per SMM) |
| Cache L2 | 256 KB | 2 MB |
| Comptage SMM | — | 3 |
Performance théorique
| Taux de pixel | 3.504 GPixel/s | 17.98 GPixel/s |
|---|---|---|
| Taux de texture | 14.02 GTexel/s | 26.98 GTexel/s |
| FP32 (float) performance | 336.4 GFLOPS | 863.2 GFLOPS |
| FP64 (double) performance | 14.02 GFLOPS (1:24) | 26.98 GFLOPS (1:32) |
Board Design
| Taille Slot | Single-slot | Single-slot |
|---|---|---|
| Longueur | 160 mm 6.3 inches | 160 mm 6.3 inches |
| Taille | 69 mm 2.7 inches | 69 mm 2.7 inches |
| TDP | 41 W | 45 W |
| Suggestions pour le PSU | 200 W | 200 W |
| Sorties | 1x DVI1x DisplayPort | 1x DVI1x DisplayPort |
| Connecteurs de puissance | None | None |
| Board number | P2012 | P2012 |
Caractéristiques graphiques
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.1 |
| CUDA | 3.0 | 5.0 |
| Shader model | 5.1 | 5.1 |
