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GPU Comparison
NVIDIA GeForce 820M vs NVIDIA GeForce 940A
NVIDIA GeForce 820M vs NVIDIA GeForce 940A
VS
NVIDIA GeForce 820M
NVIDIA GeForce 940A
We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 1024MB VRAM GeForce 940A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 820M 's Advantages
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (28.83GB/s vs 16.02GB/s)
NVIDIA GeForce 940A 's Advantages
Boost Clock1124MHz
Lower TDP (33W vs 45W)
Score
Benchmark
FP32 (float)
GeForce 820M
0.622 TFLOPS
GeForce 940A
+38%
0.863 TFLOPS
GeForce 820M
VS
GeForce 940A
Graphics Card
Mar 2015
Release Date
Mar 2015
GeForce 800M
Generation
GeForce 900A
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1029 MHz
-
Boost Clock
1124 MHz
901 MHz
Memory Clock
1001 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
DDR3
128bit
Memory Bus
64bit
28.83GB/s
Bandwidth
16.02GB/s
Render Config
-
SM Count
-
-
Compute Units
-
384
Shading Units
384
32
TMUs
16
16
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
64 KB (per SMM)
256 KB
L2 Cache
1024 KB
Theoretical Performance
6.480 GPixel/s
Pixel Rate
8.992 GPixel/s
25.92 GTexel/s
Texture Rate
17.98 GTexel/s
-
FP16 (half)
-
622.1 GFLOPS
FP32 (float)
863.2 GFLOPS
25.92 GFLOPS
FP64 (double)
26.98 GFLOPS
Graphics Processor
GK107
GPU Name
GM108
-
GPU Variant
-
Kepler
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
Unknown
118 mm²
Die Size
Unknown
Board Design
45W
TDP
33W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
5.0
5.1
Shader Model
5.1
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