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ASUS GT 640 4 GB

GT640-4GD3/DP
Graphics Processor
GK107
Cores
384
TMUs
32
ROPs
16
Memory Size
4 GB
Memory Type
DDR3
Bus Width
128 bit

Graphics Processor

GPU Name
GK107
GPU Variant
GK107-320-A2
Architecture
Kepler
Foundry
TSMC
Process Size
28 nm
Transistors
1,270 million
Die Size
118 mm²

Graphics Card

Release Date
Apr 24th, 2012
Generation
GeForce 600
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Clock Speeds

GPU Clock
797 MHz
Memory Clock
891 MHz
1782 MHz effective

Memory

Memory Size
2 GB
4 GB
Memory Type
DDR3
Memory Bus
128 bit
Bandwidth
28.51 GB/s

Render Config

Shading Units
384
TMUs
32
ROPs
16
SMX Count
2
L1 Cache
16 KB (per SMX)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
6.376 GPixel/s
Texture Rate
25.50 GTexel/s
FP32 (float) performance
612.1 GFLOPS
FP64 (double) performance
25.50 GFLOPS (1:24)

Board Design

Slot Width
Single-slot
Length
5.7 inches
145 mm
TDP
50 W
Suggested PSU
350 W
Outputs
1x DVI
1x HDMI
1x DisplayPort
Power Connectors
None
Board Number
P2010

Graphics Features

DirectX
12.0 (11_0)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.126
CUDA
3.0
Shader Model
5.1

Card Notes

Variant Memory: 4096MB DDR3
Variant Memory: 1024MB GDDR5

GK107 GPU Notes

L1 Cache is configurable from 16 KB up to 48 KB per SMX

Other retail boards based on this design (3)

Name GPU Clock Memory Clock Other Changes
ASUS GT 640 4 GB 797 MHz 891 MHz 4 GB
NVIDIA GeForce GT 640 OEM 1 GB 954 MHz 1250 MHz 1024 MB, GDDR5
NVIDIA GeForce GT 640 OEM 2 GB 797 MHz 891 MHz