GeForce GT 640 1GB vs GeForce GT 440 3SM
GeForce GT 640 1GB
GeForce GT 440 3SM
|
384 Shaders
1GB DDR3
797MHz
|
144 Shaders
2GB DDR3
810MHz
|
|
FP32
0.61 TFLOPS
|
FP32
0.47 TFLOPS
|
|
-
-
|
-
-
|
|
Form Factor
PCIe Card
1.5-Slots
|
Form Factor
PCIe Card
1.0-Slots
|
|
TDP
50W
|
TDP
56W
|
|
-
-
-
-
-
|
-
-
-
-
-
|
|
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
-
-
|
Codename
NVC3
GF106
-
-
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
4/24/2012
|
Release Date
10/11/2010
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
28nm
-
|
Fabrication Node
40nm
-
|
|
Die Size
118 mm²
-
|
Die Size
238 mm²
-
|
|
Transistor Count
1.3 Billion
-
|
Transistor Count
1.2 Billion
-
|
|
Transistor Density
10.76M/mm²
-
|
Transistor Density
4.92M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
384 Shaders
-
|
Shading Units
144 Shaders
-
|
|
Texture Mapping Units
32 TMUs
|
Texture Mapping Units
24 TMUs
|
|
Render Output Units
16 ROPs
|
Render Output Units
24 ROPs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Streaming Multiprocessors
2 SMs
|
Streaming Multiprocessors
3 SMs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
-
-
-
797MHz
|
-
1620MHz Shader
-
810MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
FP32
0.61 TFLOPS
|
FP32
0.47 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
0.03 TFLOPS
-
|
FP64
0.04 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
Pixel Fillrate
12.752 GPixel/s
|
Pixel Fillrate
19.44 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
25.504 GTexel/s
|
Texture Fillrate
19.44 GTexel/s
|
|
-
-
|
-
-
|
|
L1
48KB/SM Tex
16KB/SM
-
-
|
L1
-
64KB/SM
-
-
|
|
L2
256KB Shared
|
L2
384KB Shared
|
|
-
-
-
|
-
-
-
|
|
1GB
DDR3
-
|
2GB
DDR3
-
|
|
Bus Width
128Bit
|
Bus Width
192Bit
|
|
Clock
891MHz
Transfer Rate
1.8GT/s
Bandwidth
28.5GB/s
|
Clock
900MHz
Transfer Rate
1.8GT/s
Bandwidth
43.2GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
50W
|
TDP
56W
|
|
-
-
|
-
-
|
|
1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.4
-
-
-
-
|
1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.3
-
-
-
-
-
|
|
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
-
-
-
|
|
Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
|
Multi Monitor Support
2
|
Multi Monitor Support
2
|
|
-
-
|
-
-
|
|
Model
NVENC 1
|
No Encoders
-
|
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
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Model
NVDEC 1
|
No Decoders
|
|
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
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
-
-
|
|
Shader Model
6.5
CUDA
3.0
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
Shader Model
5.1
CUDA
2.1
-
-
PureVideo HD
VP4
VDPAU
Feature Set C
|
|
-
-
-
1x Fan
|
-
-
-
1x Fan
|
|
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
|
|
Slots Required
1.5
PCIe Version
3.0
PCIe Lanes
16
|
Slots Required
1.0
PCIe Version
2.0
PCIe Lanes
16
|
|
-
-
-
-
|
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
145 mm (5.71 in)
Depth
20 mm (0.79 in)
|
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