GeForce GT 640 GK208 Specs
GeForce GT 640 GK208
|
384 Shaders
1GB GDDR5
1046MHz
|
|
FP32
0.8 TFLOPS
|
|
-
-
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Form Factor
PCIe Card
1.5-Slots
|
|
TDP
49W
|
|
-
-
-
-
-
|
|
GB5 OpenCL - N/A
0%
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|
GB5 CUDA - N/A
0%
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GB5 Metal - N/A
0%
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GB5 Vulkan - N/A
0%
|
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OCT 2020.1 - N/A
0%
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|
OCT Metal - N/A
0%
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Manufacturer
NVIDIA
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Chip Designer
NVIDIA
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Architecture
Kepler 2
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Family
GeForce 600
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Codename
NV108
GK208
Variant
GK208-400-A1
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Market Segment
Desktop
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Release Date
5/29/2013
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Foundry
TSMC
-
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Fabrication Node
28nm
-
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Die Size
79 mm²
-
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Transistor Count
1 Billion
-
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Transistor Density
12.91M/mm²
-
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Form
PCIe Card
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Shading Units
384 Shaders
-
|
|
Texture Mapping Units
16 TMUs
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Render Output Units
8 ROPs
|
|
-
-
|
|
-
-
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Streaming Multiprocessors
2 SMs
|
|
-
-
|
|
-
-
|
|
-
-
|
|
-
-
-
1046MHz
|
|
-
-
|
|
-
-
-
|
|
-
-
-
|
|
-
-
-
|
|
FP32
0.8 TFLOPS
|
|
-
-
|
|
FP64
0.03 TFLOPS
-
|
|
-
-
|
|
-
-
-
|
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Pixel Fillrate
8.368 GPixel/s
|
|
-
-
|
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Texture Fillrate
16.736 GTexel/s
|
|
-
-
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L1
48KB/SM Tex
16KB/SM
-
-
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L2
256KB Shared
|
|
-
-
-
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1GB
GDDR5
-
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Bus Width
64Bit
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Clock
1252MHz
Transfer Rate
5GT/s
Bandwidth
40.1GB/s
|
|
-
-
-
-
-
-
-
-
-
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TDP
49W
|
|
-
-
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1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.4
-
-
-
-
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Max Resolution
4096x2304
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Max Resolution Refresh Rate
30Hz
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Variable Refresh Rate
G-Sync
FreeSync
-
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Display Stream Compression (DSC)
Not Supported
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|
Multi Monitor Support
2
|
|
-
-
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No Encoders
-
|
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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Model
NVDEC 1
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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
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Direct X
12
Direct 3D
11_0
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|
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
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|
Shader Model
6.5
CUDA
3.5
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
|
-
-
-
1x Fan
|
|
-
-
-
-
-
-
-
-
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Slots Required
1.5
PCIe Version
2.0
PCIe Lanes
8
|
|
-
-
-
-
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Height
111 mm (4.37 in)
Width
145 mm (5.71 in)
Depth
30 mm (1.18 in)
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