Key Features:
1GB 64-Bit GDDR5
Core Clock 1046MHz
1 x Dual-link DVI-D 1 x HDMI
384 Cores CUDA Cores
PCI Express 2.0
Manufacturer: | ASUS |
Model: | GeForce GT 640 1GB DDR5 |
Part number: | GT640-1GD5-L |
Based on: | NVIDIA GeForce GT 640 v2 GDDR5 |
Target market segment: | Desktop |
Die name: | GK 208 |
Architecture: | Kepler |
Fabrication process: | 28 nm |
Transistors: | 1.3 billion |
Bus interface: | PCI-E 3.0 x 16 |
Frequency | |
Graphics clock: | 1046 MHz |
Memory specifications | |
Memory size: | 1024 MB |
Memory type: | GDDR5 |
Memory clock: | 1252 MHz |
Memory clock (effective): | 5010 MHz |
Memory interface width: | 64-bit |
Memory bandwidth: | 40.08 GB/s |
Cores / Texture | |
CUDA: | 2.1 |
CUDA cores: | 384 |
ROPs: | 8 |
Texture units: | 16 |
RAMDACs: | 400 MHz |
Electric characteristics | |
Maximum GPU temp: | 95°C |
Maximum power draw: | 49 W |
Video features | |
Multi-monitor: | Up to 3 displays |
Maximum DVI resolution: | 2560 x 1600 |
Maximum HDMI resolution: | 4096 x 2160 @ 24 Hz or 3840 x 2160 @ 30 Hz |
Maximum VGA resolution: | 2048 x 1536 |
Anti-Aliasing technologies: | FXAA TXAA |
HDMI: | Yes |
HDMI version: | 1.4a |
Performance | |
Pixel fill rate: | 8.37 Gigapixels/s |
Texture fill rate: | 16.74 Gigatexels/s |
Single presision compute power: | 803.33 GFLOPS |
External connectors | |
Standard display connectors: | Dual-Link DVI-D HDMI VGA |
Audio input for HDMI: | Yes |
Dimensions | |
Size (length x height): | 5.71 inches (145 mm) x 2.72 inches (69 mm) |
Width: | Dual Slot |
Other features / Support | |
Other features: | 3D Vision ? 3D Vision Surround ? HDCP PhysX |
OpenGL support: | 4.2 |
DirectX support: | 11.1 |
Vulkan support: | 1.1.73 |
Shader model: | 5.0 |
ASUS GeForce GT 640 1GB DDR5 (part number GT640-1GD5-L) is a Graphics Processing Unit, aimed at desktop market. The GPU is based on NVIDIA GeForce GT 640 v2 GDDR5 model, and built using 28 nm technology. The card has graphics clocked at 1.046 GHz. It also sports 384 CUDA cores, 16 texture units, as well as 8 ROPs. The GeForce GT 640 1GB DDR5 comes with 1 GB of GDDR5 memory. Since the memory operates at 1.252 GHz, and uses 64 bit bus, the effective memory bandwidth is 40.08 GB/s. The GPU has PCI Express 3.0 interface, and requires 2 slots on the motherboard. The maximum power draw of this model is 49 Watt.