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GeForce GT 640 / CGNX-G648L

Specifications of the Club 3D GeForce GT 640 GPU


Club 3D GeForce GT 640 (part number CGNX-G648L) Graphics Processing Unit for desktop market segment is based on NVIDIA GeForce GT 640 DDR3, and produced on 28 nm technology. The cards graphics frequency is 900 MHz. It also boasts 384 CUDA cores, 32 texture units, as well as 16 ROPs. The GeForce GT 640 comes with 4 GB of DDR3 memory, clocked at 800 MHz. It has a 128 bit wide memory bus, which translates to 25.6 GB/s memory bandwidth. The GPU supports PCI Express 3.0 interface, and requires 2 slots on the motherboard. The maximum power draw of this model is 65 Watt.

Below you will find detailed specifications of the Club 3D GeForce GT 640 card.

Name / Brand / Architecture

Manufacturer:Club 3D
Model:GeForce GT **0
Part number:CGNX-G**8L
Based on:NVIDIA GeForce GT **0 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:900 MHz

Memory specifications

Memory size:4096 MB
Memory type:DDR3
Memory clock:800 MHz
Memory clock (effective):1600 MHz
Memory interface width:128-bit
Memory bandwidth:25.6 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:**0 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:14.4 Gigapixels/s
Texture fill rate:28.8 Gigatexels/s
Single presision compute power:691.2 GFLOPS

External connectors

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

Dimensions

Size (length x height):5.75 inches (146 mm) x 2.48 inches (63 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

Notes


Low profile, dual single slot brackets supplied.
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