GeForce 940M vs GeForce 820M
We compared two Mobile platform GPUs: 2GB VRAM GeForce 940M and 2GB VRAM GeForce 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce 940M 's Advantages
Boost Clock1098MHz
128 additional rendering cores
GeForce 820M 's Advantages
Larger VRAM bandwidth (28.83GB/s vs 14.40GB/s)
Lower TDP (45W vs 75W)
Score
Benchmark
FP32 (float)
GeForce 940M
+80%
1124
GeForce 820M
622
3DMark Time Spy
GeForce 940M
+164%
507
GeForce 820M
192
Graphics Card
Mar 2015
Release Date
Mar 2015
GeForce 900M
Generation
GeForce 800M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16
Clock Speeds
1020 MHz
Base Clock
-
1098 MHz
Boost Clock
-
900 MHz
Memory Clock
901 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
DDR3
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
28.83GB/s
Render Config
512
Shading Units
384
32
TMUs
32
16
ROPs
16
64 KB (per SMM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
256 KB
Theoretical Performance
17.57 GPixel/s
Pixel Rate
6.480 GPixel/s
35.14 GTexel/s
Texture Rate
25.92 GTexel/s
1124 GFLOPS
FP32 (float)
622.1 GFLOPS
35.14 GFLOPS
FP64 (double)
25.92 GFLOPS
Board Design
75W
TDP
45W
No outputs
Outputs
No outputs
Graphics Processor
GM107
GPU Name
GK107
N16S-GT1-KB-B
GPU Variant
-
Maxwell
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.87 billion
Transistors
1.27 billion
148 mm²
Die Size
118 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
5.0
CUDA
3.0
5.1
Shader Model
5.1
