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GeForce GT 640 3 GB 192-bit DDR3 (OEM)

Specifications of the NVIDIA GeForce GT 640 3 GB 192-bit DDR3 (OEM) GPU


NVIDIA GeForce GT 640 3 GB 192-bit DDR3 (OEM) desktop Graphics Processing Unit was launched in April 2012. The GPU utilizes Fermi architecture, and it is built on 40 nm technological process. The cards processor and graphics clock speeds are 1.44 GHz and 720 MHz respectively. It also boasts 144 CUDA cores, 24 texture units, together with 16 ROPs. The GeForce GT 640 3 GB 192-bit DDR3 (OEM) incorporates 3 GB of DDR3 memory, clocked at 891 MHz. It has a 192 bit wide memory bus, which results in 42.77 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface, and needs 1 slot on the motherboard. This model uses up to 75 Watt of power.

More detailed specifications of the NVIDIA GeForce GT 640 3 GB 192-bit DDR3 (OEM) card you will find below.

Name / Brand / Architecture

Manufacturer:NVIDIA
Model:GeForce GT **0 3 GB 192-bit DDR3 (OEM)
Reference card?:Yes
Target market segment:Desktop (OEM)
Die name:GF 116
Architecture:Fermi
Fabrication process:40nm
Transistors:1.17 billion
Bus interface:PCI-E 2.0 x 16
Launch date:April 2012

Frequency

Graphics clock:720 MHz
Processor clock:1440 MHz

Memory specifications

Memory size:3072 MB
Memory type:DDR3
Memory clock:891 MHz
Memory clock (effective):1782 MHz
Memory interface width:192-bit
Memory bandwidth:42.77 GB/s

Cores / Texture

CUDA:2.1
CUDA cores:144
ROPs:16
Texture units:24
RAMDACs:400 MHz

Electric characteristics

Maximum GPU temp:102C
Maximum power draw:75 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
HDMI:Yes
HDMI version:1.4a

Performance

Pixel fill rate:11.52 Gigapixels/s
Texture fill rate:17.28 Gigatexels/s
Single presision compute power:518.4 GFLOPS

External connectors

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

Dimensions

Size (length x height):5.71 inches (145 mm) x 4.376 inches (111 mm)
Width:Single Slot

Other features / Support

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