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ASUS GT 640 Formula II
GT640-FMLII-1GD5

GK208
Graphics Processor
384
Cores
16
TMUs
8
ROPs
1024 MB
Memory Size
GDDR5
Memory Type
64 bit
Bus Width
ASUS GT 640 Formula II Photo NVIDIA GK208 Photo

Graphics Processor

GPU Name
GK208
GPU Variant
GK208-400-A1
Architecture
Kepler 2.0
Foundry
TSMC
Process Size
28 nm
Transistors
unknown
Die Size
87 mm²

Graphics Card

Release Date
May 29th, 2013
Generation
GeForce 600
Production
End-of-life
Bus Interface
PCIe 2.0 x8

Clock Speeds

GPU Clock
1046 MHz
Memory Clock
1252 MHz
5008 MHz effective

Memory

Memory Size
1024 MB
Memory Type
GDDR5
Memory Bus
64 bit
Bandwidth
40.06 GB/s

Render Config

Shading Units
384
TMUs
16
ROPs
8
SMX Count
2

Theoretical Performance

Pixel Rate
8.368 GPixel/s
Texture Rate
16.74 GTexel/s
FP32 (float) performance
803.3 GFLOPS
FP64 (double) performance
267.8 GFLOPS (1:3)

Board Design

Slot Width
Single-slot
Length
5.7 inches
145 mm
TDP
49 W
Outputs
1x DVI
1x HDMI
1x VGA
Power Connectors
None
Board Number
P2131

Graphics Features

DirectX
12.0 (11_0)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.82
CUDA
3.5
Shader Model
5.1

GK208 GPU Notes

PureVideo HD: VP5
VDPAU: Feature Set D

Other retail boards based on this design (16)

Name GPU Clock Memory Clock Other Changes
ASUS GT 640 1046 MHz 1252 MHz
ASUS GT 640 Formula II 1046 MHz 1252 MHz
Gainward GT 640 1046 MHz 1252 MHz 5.71 inches/145 mm
Galaxy GT 640 1046 MHz 1252 MHz 6.25 inches/159 mm
Galaxy GT 640 Black 1097 MHz 1252 MHz
GIGABYTE GT 640 1046 MHz 1252 MHz 6.18 inches/157 mm
GIGABYTE GT 640 2 GB 1046 MHz 1252 MHz 2 GB, 6.97 inches/177 mm
Inno3D GT 640 1046 MHz 1252 MHz
Leadtek WinFast GT 640 1064 MHz 1252 MHz
MSI GT 640 Low Profile 1046 MHz 1252 MHz 5.75 inches/146 mm
Palit GT 640 1 GB 1046 MHz 1252 MHz
Palit GT 640 2 GB 1046 MHz 1252 MHz 2 GB, 1x DVI 1x mini-HDMI 1x VGA
XENON GT 640 LP 1046 MHz 1252 MHz 5.75 inches/146 mm
ZOTAC GT 640 1 GB 1046 MHz 1252 MHz
ZOTAC GT 640 2 GB 1046 MHz 1252 MHz 2 GB
ZOTAC GT 640 Guild Wars 1046 MHz 1252 MHz Dual-slot