NVIDIA GeForce GTX 850M GDDR5 vs NVIDIA GeForce 840M
NVIDIA GeForce GTX 850M GDDR5
NVIDIA GeForce 840M
|
640 Shaders
2GB GDDR5
876MHz
|
384 Shaders
2GB DDR3
1029MHz
|
|
Peak Performance
4.49 TOPS
INT8
|
Peak Performance
3.16 TOPS
INT8
|
|
FP32
1.12 TFLOPS
|
FP32
0.79 TFLOPS
|
|
-
-
|
-
-
|
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Form Factor
Soldered
-
|
Form Factor
Soldered
-
|
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TDP
40W
|
TDP
30W
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-
-
-
-
-
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-
-
-
-
-
|
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GB6 OpenCL N/A
0%
|
|
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GB6 Metal N/A
0%
|
GB6 Metal N/A
0%
|
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GB6 Vulkan N/A
0%
|
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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
Maxwell
|
Architecture
Maxwell
|
|
Family
GeForce 800
|
Family
GeForce 800
|
|
Codename
NV117
GM107
-
-
|
Codename
NV118
GM108
-
-
|
|
Market Segment
Laptop
|
Market Segment
Laptop
|
|
Release Date
3/12/2014
|
Release Date
3/12/2014
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
28nm
-
|
Fabrication Node
28nm
-
|
|
Die Size
148 mm²
-
|
Die Size
89 mm²
-
|
|
Transistor Count
1.9 Billion
-
|
Transistor Count
1.1 Billion
-
|
|
Transistor Density
12.64M/mm²
-
|
Transistor Density
12.61M/mm²
-
|
|
Form
Soldered
|
Form
Soldered
|
|
Shading Units
640 Shaders
-
|
Shading Units
384 Shaders
-
|
|
Texture Mapping Units
40 TMUs
|
Texture Mapping Units
24 TMUs
|
|
Render Output Units
16 ROPs
|
Render Output Units
8 ROPs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Streaming Multiprocessors
5 SMs
|
Streaming Multiprocessors
3 SMs
|
|
-
-
|
-
-
|
|
-
-
|
-
-
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|
-
-
|
-
-
|
|
-
-
-
876MHz
|
-
-
-
1029MHz
|
|
Peak Performance
4.49 TOPS
INT8
|
Peak Performance
3.16 TOPS
INT8
|
|
-
-
-
|
-
-
-
|
|
-
-
-
-
-
-
|
-
-
-
-
-
-
|
|
-
-
-
-
-
-
|
-
-
-
-
-
-
|
|
FP32
1.12 TFLOPS
-
-
|
FP32
0.79 TFLOPS
-
-
|
|
FP64
0.04 TFLOPS
-
|
FP64
0.03 TFLOPS
-
|
|
-
-
-
-
|
-
-
-
-
|
|
-
-
-
|
-
-
-
|
|
-
-
-
|
-
-
-
|
|
INT8
4.49 TOPS
-
-
|
INT8
3.16 TOPS
-
-
|
|
INT32
1.12 TOPS
|
INT32
0.79 TOPS
|
|
-
-
|
-
-
|
|
Pixel Fillrate
14.016 GPixel/s
|
Pixel Fillrate
8.232 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
35.04 GTexel/s
|
Texture Fillrate
24.696 GTexel/s
|
|
-
-
|
-
-
|
|
L1
-
64KB/SM
-
-
|
L1
-
64KB/SM
-
-
|
|
L2
2MB Shared
|
L2
1MB Shared
|
|
-
-
-
|
-
-
-
|
|
2GB
GDDR5
-
|
2GB
DDR3
-
|
|
Bus Width
128Bit
|
Bus Width
64Bit
|
|
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
80GB/s
|
Clock
1000MHz
Transfer Rate
2GT/s
Bandwidth
16GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
40W
|
TDP
30W
|
|
-
-
|
-
-
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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No Ports
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
No Ports
|
|
Max Resolution
4096x2304
|
Max Resolution
4096x2304
|
|
Max Resolution Refresh Rate
30Hz
|
Max Resolution Refresh Rate
30Hz
|
|
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
2
|
|
-
-
|
-
-
|
|
Model
NVENC 2
|
No Encoders
-
|
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
|
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
1.3
|
OpenGL
4.6
OpenCL
3.0
Vulkan
1.3
|
|
Shader Model
6.7
CUDA
5.0
-
-
PureVideo HD
VP6
VDPAU
Feature Set E
|
Shader Model
6.7
CUDA
5.0
-
-
PureVideo HD
VP6
VDPAU
Feature Set E
|
|
Not a Card
-
-
-
|
Not a Card
-
-
-
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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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-
-
-
-
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-
-
-
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