NVIDIA GeForce GTX 675M vs NVIDIA GeForce 840M
NVIDIA GeForce GTX 675M
NVIDIA GeForce 840M
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384 Shaders
2GB GDDR5
632MHz
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384 Shaders
2GB DDR3
1029MHz
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FP32
0.97 TFLOPS
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FP32
0.79 TFLOPS
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-
-
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-
-
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Form Factor
Soldered
-
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Form Factor
Soldered
-
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TDP
100W
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TDP
30W
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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
Fermi
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Architecture
Maxwell
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Family
GeForce 600
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Family
GeForce 800
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Codename
NVCE
GF114
Variant
N13E-GS1
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Codename
NV118
GM108
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-
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Market Segment
Laptop
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Market Segment
Laptop
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Release Date
4/1/2012
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Release Date
3/12/2014
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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
1950 mm²
-
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Die Size
89 mm²
-
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Transistor Count
332 Million
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Transistor Count
1.1 Billion
-
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Transistor Density
0.17M/mm²
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Transistor Density
12.61M/mm²
-
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Form
Soldered
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Form
Soldered
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Shading Units
384 Shaders
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Shading Units
384 Shaders
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Texture Mapping Units
64 TMUs
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Texture Mapping Units
24 TMUs
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Render Output Units
32 ROPs
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Render Output Units
8 ROPs
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-
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-
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-
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Streaming Multiprocessors
8 SMs
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Streaming Multiprocessors
3 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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1265MHz Shader
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632MHz
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-
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1029MHz
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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
0.97 TFLOPS
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FP32
0.79 TFLOPS
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|
-
-
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-
-
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FP64
0.08 TFLOPS
-
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FP64
0.03 TFLOPS
-
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-
-
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-
-
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-
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-
-
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Pixel Fillrate
20.224 GPixel/s
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Pixel Fillrate
8.232 GPixel/s
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-
-
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-
-
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Texture Fillrate
40.448 GTexel/s
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Texture Fillrate
24.696 GTexel/s
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-
-
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-
-
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L1
-
64KB/SM
-
-
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L1
-
64KB/SM
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-
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L2
512KB Shared
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L2
1MB Shared
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-
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-
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2GB
GDDR5
-
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2GB
DDR3
-
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Bus Width
256Bit
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Bus Width
64Bit
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Clock
750MHz
Transfer Rate
3GT/s
Bandwidth
96GB/s
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Clock
1000MHz
Transfer Rate
2GT/s
Bandwidth
16GB/s
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-
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TDP
100W
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TDP
30W
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-
-
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-
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No Ports
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No Ports
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Max Resolution
2560x1600
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Max Resolution
4096x2304
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Max Resolution Refresh Rate
60Hz
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Max Resolution Refresh Rate
30Hz
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Variable Refresh Rate
-
-
-
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Variable Refresh Rate
G-Sync
FreeSync
-
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Display Stream Compression (DSC)
Not Supported
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Display Stream Compression (DSC)
Not Supported
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Multi Monitor Support
2
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Multi Monitor Support
2
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-
-
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-
-
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No Encoders
-
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No Encoders
-
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No Decoders
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No Decoders
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Direct X
12
Direct 3D
11_0
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Direct X
12
Direct 3D
11_0
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OpenGL
4.6
OpenCL
1.1
-
-
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OpenGL
4.6
OpenCL
3.0
Vulkan
1.3
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Shader Model
5.1
CUDA
2.1
-
-
PureVideo HD
VP4
VDPAU
Feature Set C
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Shader Model
6.7
CUDA
5.0
-
-
PureVideo HD
VP6
VDPAU
Feature Set E
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Not a Card
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Not a Card
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PCIe Version
2.0
PCIe Lanes
16
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-
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PCIe Version
3.0
PCIe Lanes
16
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