NVIDIA GeForce 830M vs NVIDIA GeForce GT 640M
NVIDIA GeForce 830M
NVIDIA GeForce GT 640M
|
256 Shaders
2GB DDR3
1029MHz
|
384 Shaders
1GB GDDR5
625MHz
|
|
FP32
0.53 TFLOPS
|
FP32
0.48 TFLOPS
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-
-
|
-
-
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Form Factor
Soldered
-
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Form Factor
Soldered
-
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TDP
25W
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TDP
32W
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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%
|
GB5 Vulkan - N/A
0%
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OCT 2020.1 - N/A
0%
|
OCT 2020.1 - N/A
0%
|
|
OCT Metal - N/A
0%
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OCT Metal - N/A
0%
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Manufacturer
NVIDIA
|
Manufacturer
NVIDIA
|
|
Chip Designer
NVIDIA
|
Chip Designer
NVIDIA
|
|
Architecture
Maxwell
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Architecture
Kepler
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Family
GeForce 800
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Family
GeForce 600
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Codename
NV118
GM108
-
-
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Codename
NVE7
GK107
Variant
N13P-GS
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Market Segment
Laptop
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Market Segment
Laptop
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Release Date
3/12/2014
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Release Date
3/22/2012
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Foundry
TSMC
-
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Foundry
TSMC
-
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Fabrication Node
28nm
-
|
Fabrication Node
28nm
-
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Die Size
89 mm²
-
|
Die Size
118 mm²
-
|
|
Transistor Count
1.1 Billion
-
|
Transistor Count
1.3 Billion
-
|
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Transistor Density
12.61M/mm²
-
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Transistor Density
10.76M/mm²
-
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Form
Soldered
|
Form
Soldered
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Shading Units
256 Shaders
-
|
Shading Units
384 Shaders
-
|
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Texture Mapping Units
16 TMUs
|
Texture Mapping Units
32 TMUs
|
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Render Output Units
8 ROPs
|
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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-
-
-
1029MHz
|
-
-
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625MHz
|
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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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-
-
-
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FP32
0.53 TFLOPS
|
FP32
0.48 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
0.02 TFLOPS
-
|
FP64
0.02 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Pixel Fillrate
8.232 GPixel/s
|
Pixel Fillrate
10 GPixel/s
|
|
-
-
|
-
-
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|
Texture Fillrate
16.464 GTexel/s
|
Texture Fillrate
20 GTexel/s
|
|
-
-
|
-
-
|
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L1
-
64KB/SM
-
-
|
L1
48KB/SM Tex
16KB/SM
-
-
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L2
1MB Shared
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L2
256KB Shared
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-
-
-
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-
-
-
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2GB
DDR3
-
|
1GB
GDDR5
-
|
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Bus Width
64Bit
|
Bus Width
128Bit
|
|
Clock
900MHz
Transfer Rate
1.8GT/s
Bandwidth
14.4GB/s
|
Clock
1000MHz
Transfer Rate
4GT/s
Bandwidth
64GB/s
|
|
-
-
-
-
-
-
-
-
-
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-
-
-
-
-
-
-
-
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TDP
25W
|
TDP
32W
|
|
-
-
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-
-
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-
-
-
-
-
-
-
-
-
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-
-
-
-
-
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No Ports
|
-
-
-
-
-
-
-
-
-
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-
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-
-
-
-
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No Ports
|
|
Max Resolution
4096x2304
|
Max Resolution
4096x2304
|
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Max Resolution Refresh Rate
30Hz
|
Max Resolution Refresh Rate
60Hz
|
|
Variable Refresh Rate
G-Sync
FreeSync
-
|
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
3
|
|
-
-
|
-
-
|
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No Encoders
-
|
Model
NVENC 1
|
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
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No Decoders
|
Model
NVDEC 1
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
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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
1.3
|
OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
|
|
Shader Model
6.7
CUDA
5.0
-
-
PureVideo HD
VP6
VDPAU
Feature Set E
|
Shader Model
6.5
CUDA
3.0
-
-
PureVideo HD
VP5
VDPAU
Feature Set D
|
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Not a Card
-
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Not a Card
-
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-
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-
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-
-
-
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-
-
PCIe Version
3.0
PCIe Lanes
16
|
-
-
PCIe Version
3.0
PCIe Lanes
16
|
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