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GeForce GT 640 GDDR5 / GV-N640D5-1GL

Specifications of the GIGABYTE GeForce GT 640 GDDR5 GPU


GIGABYTE GeForce GT 640 GDDR5 (part number GV-N640D5-1GL) is a Graphics Processing Unit for desktop market segment, based on NVIDIA GeForce GT 640 v2 GDDR5. The GPU, manufactured on 28 nm technology, features Kepler architecture. The cards graphics frequency is 1.046 GHz. Furthermore, it has 384 CUDA cores, 16 texture units, as well as 8 ROPs. The GeForce GT 640 GDDR5 comes with 1 GB of GDDR5 memory, utilizing 64 bit bus. The memory is clocked at 1.25 GHz, which gives 40 GB/s memory bandwidth. The GPU supports PCI Express 3.0 interface, and needs a single slot on the motherboard. This model uses up to 49 Watt of power.

More detailed specifications of the GIGABYTE GeForce GT 640 GDDR5 graphics card you will find below.

Name / Brand / Architecture

Manufacturer:GIGABYTE
Model:GeForce GT 640 GDDR5
Part number:GV-N640D5-1GL
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:95C
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:Dual-Link DVI-D
HDMI
VGA
Audio input for HDMI:Yes

Dimensions

Size (length x height):6.18 inches (157 mm) x 4.72 inches (120 mm)
Width:Single 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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