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GeForce GT 640 1024MB / Barcode: 426018336-2913

Specifications of the Gainward GeForce GT 640 1024MB GPU


Gainward GeForce GT 640 1024MB (part number Barcode: 426018336-2913) is a Graphics Processing Unit, targeted at desktop market segment. The GPU is based on NVIDIA GeForce GT 640 v2 GDDR5 model, and produced on 28 nm manufacturing process. The cards graphics frequency is 1.046 GHz. It also boasts 384 CUDA cores, 8 ROPs, along with 16 texture units. The GeForce GT 640 1024MB embeds 1 GB of GDDR5 memory, using 64 bit bus. The memory is clocked at 1.25 GHz, which gives 40 GB/s memory bandwidth. The GPU has PCI Express 3.0 interface, and needs 2 motherboard slots. This model requires up to 49 Watt of power.

Please see below for detailed specifications of the Gainward GeForce GT 640 1024MB graphics card.

Name / Brand / Architecture

Manufacturer:Gainward
Model:GeForce GT 640 1024MB
Part number:Barcode: 426018336-2913
Based on:NVIDIA GeForce GT 640 v2 GDDR5 [Compare]
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:98C
Maximum power draw:49 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:8.37 Gigapixels/s
Texture fill rate:16.74 Gigatexels/s
Single presision compute power:803.33 GFLOPS

External connectors

Standard display connectors:2 x 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
Shader model:5.0
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