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GeForce GT 640 / GT640-2GD3

Specifications of the ASUS GeForce GT 640 GPU


ASUS GeForce GT 640 (part number GT640-2GD3) is a Graphics Processing Unit, targeted at desktop market segment. The GPU is based on NVIDIA GeForce GT 640 DDR3 model, and manufactured on 28 nm technology. The card has graphics clocked at 901 MHz. It also boasts 384 CUDA cores, 32 texture units, as well as 16 ROPs. The GeForce GT 640 embeds 2 GB of DDR3 memory. Since the memory is clocked at 891 MHz, and utilizes 128 bit bus, the effective memory bandwidth is 28.5 GB/s. The GPU supports PCI Express 3.0 interface, and needs 2 motherboard slots. The maximum power draw of this model is 65 Watt, same as on the reference design.

Below you will find more detailed specifications of the ASUS GeForce GT 640 graphics card.

Name / Brand / Architecture

Manufacturer:ASUS
Model:GeForce GT 640
Part number:GT640-2GD3
Based on:NVIDIA GeForce GT 640 DDR3 [Compare]
Target market segment:Desktop
Die name:GK 107
Architecture:Kepler
Fabrication process:28 nm
Transistors:1.3 billion
Bus interface:PCI-E 3.0 x 16

Frequency

Graphics clock:901 MHz

Memory specifications

Memory size:2048 MB
Memory type:DDR3
Memory clock:891 MHz
Memory clock (effective):1782 MHz
Memory interface width:128-bit
Memory bandwidth:28.5 GB/s

Cores / Texture

CUDA:2.1
CUDA cores:384
ROPs:16
Texture units:32
RAMDACs:400 MHz

Electric characteristics

Maximum GPU temp:98C
Maximum power draw:65 W

Video features

Multi-monitor:Up to 2 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:14.42 Gigapixels/s
Texture fill rate:28.83 Gigatexels/s
Single presision compute power:691.97 GFLOPS

External connectors

Standard display connectors:2 x Dual Link DVI-D
HDMI
VGA
Audio input for HDMI:Yes

Dimensions

Size (length x height):8.27 inches (210 mm) x 4.92 inches (125 mm)
Width:Dual Slot

Other features / Support

Other features:3D Vision  ? 
3D Vision Surround  ? 
HDCP
PhysX
OpenGL support:4.2
DirectX support:11.1
Shader model:5.0
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