GeForce GT 640 GDDR5 vs GeForce GTX 460 1GB

GeForce GT 640 GDDR5
GeForce GTX 460 1GB
384 Shaders
1GB GDDR5
950MHz
336 Shaders
1GB GDDR5
675MHz
FP32
0.73 TFLOPS
FP32
0.91 TFLOPS
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Form Factor
PCIe Card
1.5-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
75W
TDP
160W
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Power Connectors
2x 6-Pin
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GB5 OpenCL - N/A
0%
GB5 OpenCL - N/A
0%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal - N/A
0%
GB5 Metal - N/A
0%
GB5 Vulkan - N/A
0%
GB5 Vulkan - N/A
0%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal - N/A
0%
Manufacturer
NVIDIA
Manufacturer
NVIDIA
Chip Designer
NVIDIA
Chip Designer
NVIDIA
Architecture
Kepler
Architecture
Fermi
Family
GeForce 600
Family
GeForce 400
Codename
NVE7
GK107
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Codename
NVC4
GF104
Variant
GF104-300-KB-A1
Market Segment
Desktop
Market Segment
Desktop
Release Date
4/24/2012
Release Date
7/12/2010
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
28nm
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Fabrication Node
40nm
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Die Size
118 mm²
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Die Size
332 mm²
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Transistor Count
1.3 Billion
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Transistor Count
2 Billion
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Transistor Density
10.76M/mm²
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Transistor Density
5.87M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
384 Shaders
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Shading Units
336 Shaders
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Texture Mapping Units
32 TMUs
Texture Mapping Units
56 TMUs
Render Output Units
16 ROPs
Render Output Units
32 ROPs
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Streaming Multiprocessors
2 SMs
Streaming Multiprocessors
7 SMs
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950MHz
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1350MHz Shader
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675MHz
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FP32
0.73 TFLOPS
FP32
0.91 TFLOPS
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FP64
0.03 TFLOPS
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FP64
0.08 TFLOPS
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Pixel Fillrate
15.2 GPixel/s
Pixel Fillrate
21.6 GPixel/s
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Texture Fillrate
30.4 GTexel/s
Texture Fillrate
37.8 GTexel/s
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L1
48KB/SM Tex
16KB/SM
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L1
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64KB/SM
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L2
256KB Shared
L2
512KB Shared
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1GB
GDDR5
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1GB
GDDR5
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Bus Width
128Bit
Bus Width
256Bit
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
80GB/s
Clock
900MHz
Transfer Rate
3.6GT/s
Bandwidth
115.2GB/s
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TDP
75W
TDP
160W
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1x VGA
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1x DVI-I Dual-Link
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1x HDMI 1.4
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2x DVI-I Dual-Link
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1x mini-HDMI 1.3
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Max Resolution
4096x2304
Max Resolution
2560x1600
Max Resolution Refresh Rate
30Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
G-Sync
FreeSync
-
Variable Refresh Rate
-
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Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
2
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Model
NVENC 1
No Encoders
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Codec
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AVC (H.264)
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Model
NVDEC 1
No Decoders
Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Direct X
12
Direct 3D
11_0
Direct X
12
Direct 3D
11_0
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
OpenGL
4.6
OpenCL
1.1
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Shader Model
6.5
CUDA
3.0
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PureVideo HD
VP5
VDPAU
Feature Set D
Shader Model
5.1
CUDA
2.1
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PureVideo HD
VP4
VDPAU
Feature Set C
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1x Fan
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1x Fan
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Power Connectors
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2x 6-Pin
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Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
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Multi GPU Support
Supported
Type
3-way SLI
Height
111 mm (4.37 in)
Width
145 mm (5.71 in)
Depth
30 mm (1.18 in)
Height
111 mm (4.37 in)
Width
210 mm (8.27 in)
Depth
38 mm (1.5 in)
Change Results