GeForce GTS 450 4SM vs GeForce GT 640 1GB

GeForce GTS 450 4SM
GeForce GT 640 1GB
192 Shaders
1GB GDDR5
783MHz
384 Shaders
1GB DDR3
797MHz
FP32
0.6 TFLOPS
FP32
0.61 TFLOPS
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-
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
1.5-Slots
TDP
106W
TDP
50W
Power Connectors
1x 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
Fermi
Architecture
Kepler
Family
GeForce 400
Family
GeForce 600
Codename
NVC3
GF106
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-
Codename
NVE7
GK107
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Market Segment
Desktop
Market Segment
Desktop
Release Date
9/13/2010
Release Date
4/24/2012
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
40nm
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Fabrication Node
28nm
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Die Size
238 mm²
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Die Size
118 mm²
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Transistor Count
1.2 Billion
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Transistor Count
1.3 Billion
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Transistor Density
4.92M/mm²
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Transistor Density
10.76M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
192 Shaders
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Shading Units
384 Shaders
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Texture Mapping Units
32 TMUs
Texture Mapping Units
32 TMUs
Render Output Units
16 ROPs
Render Output Units
16 ROPs
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Streaming Multiprocessors
4 SMs
Streaming Multiprocessors
2 SMs
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1566MHz Shader
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783MHz
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797MHz
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FP32
0.6 TFLOPS
FP32
0.61 TFLOPS
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FP64
0.05 TFLOPS
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FP64
0.03 TFLOPS
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Pixel Fillrate
12.528 GPixel/s
Pixel Fillrate
12.752 GPixel/s
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Texture Fillrate
25.056 GTexel/s
Texture Fillrate
25.504 GTexel/s
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L1
-
64KB/SM
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L1
48KB/SM Tex
16KB/SM
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L2
384KB Shared
L2
256KB Shared
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1GB
GDDR5
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1GB
DDR3
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Bus Width
128Bit
Bus Width
128Bit
Clock
902MHz
Transfer Rate
3.6GT/s
Bandwidth
57.7GB/s
Clock
891MHz
Transfer Rate
1.8GT/s
Bandwidth
28.5GB/s
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TDP
106W
TDP
50W
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2x DVI-I Dual-Link
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1x mini-HDMI 1.3
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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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Max Resolution
2560x1600
Max Resolution
4096x2304
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
30Hz
Variable Refresh Rate
-
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-
Variable Refresh Rate
G-Sync
FreeSync
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
2
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No Encoders
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Model
NVENC 1
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Codec
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AVC (H.264)
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No Decoders
Model
NVDEC 1
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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
1.1
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OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
Shader Model
5.1
CUDA
2.1
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PureVideo HD
VP4
VDPAU
Feature Set C
Shader Model
6.5
CUDA
3.0
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PureVideo HD
VP5
VDPAU
Feature Set D
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1x Fan
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1x Fan
Power Connectors
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1x 6-Pin
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Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
3-way SLI
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Height
111 mm (4.37 in)
Width
210 mm (8.27 in)
Depth
38 mm (1.5 in)
Height
111 mm (4.37 in)
Width
145 mm (5.71 in)
Depth
30 mm (1.18 in)
Change Results