NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce GTX 750
Processeur graphique
| Nom du GPU | GF116 | GM107 |
|---|---|---|
| GPU variant | GF116-150-A1 | GM107-300-A2 |
| Architecture | Fermi 2.0 | Maxwell |
| Fonderie | TSMC | TSMC |
| Taille du processus | 40 nm | 28 nm |
| Transistors | 1,170 million | 1,870 million |
| Taille des matrices | 238 mm² | 148 mm² |
Carte graphique
| Date de publication | Apr 24th, 2012 | Feb 18th, 2014 |
|---|---|---|
| Génération | GeForce 600 | GeForce 700 |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Prédécesseur | GeForce 500 | GeForce 600 |
| Successeur | GeForce 700 | GeForce 900 |
| Prix de lancement | — | 119 USD |
| Critiques | — | 10 in our database |
Vitesse clock
| GPU clock | 720 MHz | — |
|---|---|---|
| Shader clock | 1440 MHz | — |
| Mémoire clock | 800 MHz 1600 Mbps effective | 1253 MHz 5 Gbps effective |
| Base clock | — | 1020 MHz |
| Boost clock | — | 1085 MHz |
Mémoire
| Taille de la mémoire | 1536 MB | 1024 MB |
|---|---|---|
| Type de mémoire | DDR3 | GDDR5 |
| Bus mémoire | 192 bit | 128 bit |
| Bande passante | 38.40 GB/s | 80.19 GB/s |
Render Config
| Shading units | 144 | 512 |
|---|---|---|
| TMUs | 24 | 32 |
| ROPs | 24 | 16 |
| Comptage SM | 3 | — |
| Cache L1 | 64 KB (per SM) | 64 KB (per SMM) |
| Cache L2 | 384 KB | 2 MB |
| Comptage SMM | — | 4 |
Performance théorique
| Taux de pixel | 4.320 GPixel/s | 17.36 GPixel/s |
|---|---|---|
| Taux de texture | 17.28 GTexel/s | 34.72 GTexel/s |
| FP32 (float) performance | 414.7 GFLOPS | 1,111 GFLOPS |
| FP64 (double) performance | 34.56 GFLOPS (1:12) | 34.72 GFLOPS (1:32) |
Board Design
| Taille Slot | Single-slot | Single-slot |
|---|---|---|
| Longueur | 145 mm 5.7 inches | 145 mm 5.7 inches |
| TDP | 75 W | 55 W |
| Suggestions pour le PSU | 250 W | 250 W |
| Sorties | 2x DVI1x mini-HDMI | 2x DVI1x mini-HDMI |
| Connecteurs de puissance | None | None |
| Board number | P1062 | P2010 |
Caractéristiques graphiques
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 3.0 |
| Vulkan | — | 1.1 |
| CUDA | 2.1 | 5.0 |
| Shader model | 5.1 | 5.1 |
