The NVIDIA GeForce GT 640 1GB is a mid-range video card in the GeForce 600-series. It is built on the same technology as the higher-end 600-series cards, but with a much smaller set of graphics processing cores and a reduced memory channel. This gives it lower performance, but also lower power draw and heat output - which is helped further by the 28nm manufacturing process the 600-series uses.
This generation of GeForce cards also features improved multi-monitor support, with all three of the ports the GT 640 has - VGA, DVI, and HDMI - being usable at the same time. In addition to that, the GT 640 inherits other features common to NVIDIA graphics cards: it supports CUDA, DX11, PhysX, and NVIDIA 3D Vision technology.
This generation of GeForce cards also features improved multi-monitor support, with all three of the ports the GT 640 has - VGA, DVI, and HDMI - being usable at the same time. In addition to that, the GT 640 inherits other features common to NVIDIA graphics cards: it supports CUDA, DX11, PhysX, and NVIDIA 3D Vision technology.
Model: Asus GT640-1GD5-L
Specifications
| Chipset Manufacturer | nVidia |
| Product Line | GeForce |
| Interface | PCI Express 2.0 x16 |
| Maximum DVI Resolution | 2560x1600 |
| Maximum Monitors Supported | 3 |
| HDCP Compliant | Yes |
GPU Specifications | |
| Core Speed | 1046 MHz |
| Stream Processors | 384 |
Memory Specifications | |
| Video Memory | 1GB |
| Memory Type | GDDR5 |
| Memory Speed | 1252 MHz |
| Memory Bus Width | 64-bit |
Additional Information | |
| Cooling System | Small Fan and Heatsink |
| DirectX Support | DirectX 11 |
| CUDA Support | 3.0 |
| OpenGL Support | 4.2 |
Outputs | |
| Port 1 | Dual-Link DVI |
| Port 2 | HDMI |
| Port 3 | VGA |
Power Connectors | |
| Plug 1 | None |
Dimensions | |
| Length | 265 mm (10.4 in) |
| Height | 145 mm (5.7 in) |
| Width | 69 mm (2.7 in) |
Maximum displays using Nvidia Surround: 3
