GeForce 940M vs GeForce GT 820M
We compared two Mobile platform GPUs: 2GB VRAM GeForce 940M and 1024MB VRAM GeForce GT 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce 940M 's Advantages
Released 1 years and 4 months late
Boost Clock1098MHz
More VRAM (2GB vs 1024GB)
416 additional rendering cores
GeForce GT 820M 's Advantages
Lower TDP (15W vs 75W)
Score
Benchmark
FP32 (float)
GeForce 940M
+277%
1124
GeForce GT 820M
298
Graphics Card
Mar 2015
Release Date
Nov 2013
GeForce 900M
Generation
GeForce 800M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
1020 MHz
Base Clock
-
1098 MHz
Boost Clock
-
900 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
DDR3
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
14.40GB/s
Render Config
-
SM Count
2
512
Shading Units
96
32
TMUs
16
16
ROPs
8
64 KB (per SMM)
L1 Cache
64 KB (per SM)
2 MB
L2 Cache
128 KB
Theoretical Performance
17.57 GPixel/s
Pixel Rate
3.100 GPixel/s
35.14 GTexel/s
Texture Rate
12.40 GTexel/s
1124 GFLOPS
FP32 (float)
297.6 GFLOPS
35.14 GFLOPS
FP64 (double)
24.80 GFLOPS
Board Design
75W
TDP
15W
No outputs
Outputs
No outputs
Graphics Processor
GM107
GPU Name
GF117
N16S-GT1-KB-B
GPU Variant
N15V-GM
Maxwell
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.87 billion
Transistors
0.585 billion
148 mm²
Die Size
116 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.3
Vulkan
N/A
5.0
CUDA
2.1
5.1
Shader Model
5.1
