NVIDIA GeForce GT 640 vs NVIDIA Quadro K620M
Processeur graphique
| Nom du GPU | GK107 | GM108 |
|---|---|---|
| GPU variant | GK107-300-A2 | N15M-Q3 |
| Architecture | Kepler | Maxwell |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 28 nm |
| Transistors | 1,270 million | unknown |
| Taille des matrices | 118 mm² | unknown |
Carte graphique
| Date de publication | Jun 5th, 2012 | — |
|---|---|---|
| Génération | GeForce 600 | — |
| Production | End-of-life | — |
| Prix de lancement | 99 USD | — |
| Bus interface | PCIe 3.0 x16 | — |
| Prédécesseur | GeForce 500 | — |
| Successeur | GeForce 700 | — |
Vitesse clock
| GPU clock | 902 MHz | — |
|---|---|---|
| Mémoire clock | 891 MHz 1782 Mbps effective | 900 MHz 1800 Mbps effective |
| Base clock | — | 1029 MHz |
| Boost clock | — | 1124 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 2 GB |
|---|---|---|
| Type de mémoire | DDR3 | DDR3 |
| Bus mémoire | 128 bit | 64 bit |
| Bande passante | 28.51 GB/s | 14.40 GB/s |
Render Config
| Shading units | 384 | 384 |
|---|---|---|
| TMUs | 32 | 16 |
| ROPs | 16 | 8 |
| Comptage SMX | 2 | — |
| Cache L1 | 16 KB (per SMX) | 64 KB (per SMM) |
| Cache L2 | 256 KB | 1024 KB |
| Comptage SMM | — | 2 |
Performance théorique
| Taux de pixel | 7.216 GPixel/s | 8.992 GPixel/s |
|---|---|---|
| Taux de texture | 28.86 GTexel/s | 17.98 GTexel/s |
| FP32 (float) performance | 692.7 GFLOPS | 863.2 GFLOPS |
| FP64 (double) performance | 28.86 GFLOPS (1:24) | 26.98 GFLOPS (1:32) |
Board Design
| Taille Slot | Single-slot | MXM Module |
|---|---|---|
| Longueur | 145 mm 5.7 inches | — |
| TDP | 65 W | 30 W |
| Suggestions pour le PSU | 250 W | — |
| Sorties | 1x DVI1x HDMI1x DisplayPort | No outputs |
| Connecteurs de puissance | None | None |
| Board number | P2011 | — |
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 |
AUTRES CARACTÉRISTIQUES
Graphiques mobiles
| Date de publication | — | Mar 1st, 2015 |
|---|---|---|
| Génération | — | Quadro Mobile (Kx200M) |
| Production | — | End-of-life |
| Bus interface | — | MXM-A (3.0) |
| Critiques | — | 26 in our database |
