GeForce GT 640 GDDR5 vs GeForce GT 640 1GB
GeForce GT 640 GDDR5
GeForce GT 640 1GB
|
384 Shaders
1GB GDDR5
950MHz
|
384 Shaders
1GB DDR3
797MHz
|
|
FP32
0.73 TFLOPS
|
FP32
0.61 TFLOPS
|
|
-
-
|
-
-
|
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Form Factor
PCIe Card
1.5-Slots
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Form Factor
PCIe Card
1.5-Slots
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TDP
75W
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TDP
50W
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-
-
-
-
-
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-
-
-
-
-
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GB5 OpenCL - N/A
0%
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GB5 OpenCL - N/A
0%
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GB5 CUDA - 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 Metal - N/A
0%
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GB5 Vulkan - 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 2020.1 - N/A
0%
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OCT Metal - N/A
0%
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OCT Metal - N/A
0%
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Manufacturer
NVIDIA
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Manufacturer
NVIDIA
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|
Chip Designer
NVIDIA
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Chip Designer
NVIDIA
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Architecture
Kepler
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Architecture
Kepler
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Family
GeForce 600
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Family
GeForce 600
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Codename
NVE7
GK107
-
-
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Codename
NVE7
GK107
-
-
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Market Segment
Desktop
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Market Segment
Desktop
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Release Date
4/24/2012
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Release Date
4/24/2012
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Foundry
TSMC
-
|
Foundry
TSMC
-
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Fabrication Node
28nm
-
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Fabrication Node
28nm
-
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Die Size
118 mm²
-
|
Die Size
118 mm²
-
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Transistor Count
1.3 Billion
-
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Transistor Count
1.3 Billion
-
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Transistor Density
10.76M/mm²
-
|
Transistor Density
10.76M/mm²
-
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Form
PCIe Card
|
Form
PCIe Card
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|
Shading Units
384 Shaders
-
|
Shading Units
384 Shaders
-
|
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Texture Mapping Units
32 TMUs
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Texture Mapping Units
32 TMUs
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Render Output Units
16 ROPs
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Render Output Units
16 ROPs
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-
-
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-
-
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-
-
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-
-
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Streaming Multiprocessors
2 SMs
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Streaming Multiprocessors
2 SMs
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
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-
-
-
950MHz
|
-
-
-
797MHz
|
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-
-
|
-
-
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-
-
-
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-
-
-
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-
-
-
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-
-
-
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-
-
-
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-
-
-
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FP32
0.73 TFLOPS
|
FP32
0.61 TFLOPS
|
|
-
-
|
-
-
|
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FP64
0.03 TFLOPS
-
|
FP64
0.03 TFLOPS
-
|
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-
-
|
-
-
|
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-
-
-
|
-
-
-
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Pixel Fillrate
15.2 GPixel/s
|
Pixel Fillrate
12.752 GPixel/s
|
|
-
-
|
-
-
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Texture Fillrate
30.4 GTexel/s
|
Texture Fillrate
25.504 GTexel/s
|
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-
-
|
-
-
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L1
48KB/SM Tex
16KB/SM
-
-
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L1
48KB/SM Tex
16KB/SM
-
-
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L2
256KB Shared
|
L2
256KB Shared
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-
-
-
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-
-
-
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1GB
GDDR5
-
|
1GB
DDR3
-
|
|
Bus Width
128Bit
|
Bus Width
128Bit
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Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
80GB/s
|
Clock
891MHz
Transfer Rate
1.8GT/s
Bandwidth
28.5GB/s
|
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-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
-
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TDP
75W
|
TDP
50W
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|
-
-
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-
-
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1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.4
-
-
-
-
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1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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1x HDMI 1.4
-
-
-
-
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Max Resolution
4096x2304
|
Max Resolution
4096x2304
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Max Resolution Refresh Rate
30Hz
|
Max Resolution Refresh Rate
30Hz
|
|
Variable Refresh Rate
G-Sync
FreeSync
-
|
Variable Refresh Rate
G-Sync
FreeSync
-
|
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Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
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Multi Monitor Support
2
|
Multi Monitor Support
2
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-
-
|
-
-
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Model
NVENC 1
|
Model
NVENC 1
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Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
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Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
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Model
NVDEC 1
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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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Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
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Direct X
12
Direct 3D
11_0
|
Direct X
12
Direct 3D
11_0
|
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OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
|
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
|
|
Shader Model
6.5
CUDA
3.0
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
Shader Model
6.5
CUDA
3.0
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
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|
-
-
-
1x Fan
|
-
-
-
1x Fan
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-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
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Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
|
Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
|
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-
-
-
-
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-
-
-
-
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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
145 mm (5.71 in)
Depth
30 mm (1.18 in)
|
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