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GeForce GT 640M 2 GB GDDR5

Specifications of the NVIDIA GeForce GT 640M 2 GB GDDR5 GPU


NVIDIA GeForce GT 640M 2 GB GDDR5 mobile Graphics Processing Unit was released in March 2012. The GPU is built on Kepler architecture, and it is produced on 28 nm technological process. The card has 625 MHz graphics clock frequency. It also sports 384 CUDA cores, 16 ROPs, together with 32 texture units. The GeForce GT 640M 2 GB GDDR5 embeds 2 GB of GDDR5 memory. Because the memory runs at 1 GHz, and uses 128 bit bus, the effective memory bandwidth is 64 GB/s. The GPU supports PCI Express 3.0 interface. This model requires up to 32 Watt of power.

More detailed specifications of the NVIDIA GeForce GT 640M 2 GB GDDR5 card you will find below.

Name / Brand / Architecture

Manufacturer:NVIDIA
Model:GeForce GT **0M 2 GB GDDR5
Reference card?:Yes
Target market segment:Mobile
Die name:GK107 N13P-GS
Architecture:Kepler
Fabrication process:28 nm
Transistors:1.3 billion
Bus interface:PCI-E 3.0 x 16
Launch date:March 2012

Frequency

Graphics clock:625 MHz

Memory specifications

Memory size:2048 MB
Memory type:GDDR5
Memory clock:1000 MHz
Memory clock (effective):4000 MHz
Memory interface width:128-bit
Memory bandwidth:** GB/s

Cores / Texture

CUDA:3.0
CUDA cores:384
ROPs:16
Texture units:32
RAMDACs:400 MHz

Electric characteristics

Maximum power draw:32 W

Video features

Maximum digital resolution:3840 x 2160
Maximum VGA resolution:2048 x 1536
HDMI:Yes

Performance

Pixel fill rate:10 Gigapixels/s
Texture fill rate:20 Gigatexels/s
Single presision compute power:480 GFLOPS

Other features / Support

Other features:3D Vision  ? 
Direct Compute
HDCP
Optimus
PhysX
Open CL support:Yes
OpenGL support:4.2
DirectX support:11.1
Shader model:5.0
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