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GeForce GT640 1GB DDR3

Specifications of the Galaxy GeForce GT640 1GB DDR3 GPU


Galaxy GeForce GT640 1GB DDR3 Graphics Processing Unit for desktop market segment is based on NVIDIA GeForce GT 640 DDR3. The GPU is built on 28 nm technology. The card has graphics clocked at 900 MHz. It also boasts 384 CUDA cores, 32 texture units, as well as 16 ROPs. The GeForce GT640 1GB DDR3 incorporates 1 GB of DDR3 memory. Since the memory is clocked at 891 MHz, and utilizes 128 bit bus, the effective memory bandwidth is 28.5 GB/s. The GPU supports PCI Express 3.0 interface, and needs 2 slots on the motherboard. The maximum power draw of this model is 65 Watt.

Below you will find more detailed specifications of the Galaxy GeForce GT640 1GB DDR3 card.

Name / Brand / Architecture

Manufacturer:Galaxy
Model:GeForce GT**0 1GB DDR3
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:** MB
Memory type:DDR3
Memory clock:891 MHz
Memory clock (effective):1782 MHz
Memory interface width:128-bit
Memory bandwidth:28.5 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:Dual-Link DVI-D
HDMI
VGA
Audio input for HDMI:Yes

Dimensions

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