NVIDIA GeForce 920MX vs NVIDIA GeForce 840M
We compared two Mobile platform GPUs: 2GB VRAM GeForce 920MX and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 920MX 's Advantages
Released 2 years late
Lower TDP (16W vs 33W)
NVIDIA GeForce 840M 's Advantages
Boost Clock has increased by 13% (1124MHz vs 993MHz)
Larger VRAM bandwidth (16.02GB/s vs 14.40GB/s)
128 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 920MX
0.508 TFLOPS
GeForce 840M
+69%
0.863 TFLOPS
3DMark Time Spy
GeForce 920MX
382
GeForce 840M
+30%
497
3DMark Time Spy Extreme
GeForce 920MX
108
GeForce 840M
+1%
110
Blender
GeForce 920MX
47
GeForce 840M
+42%
67
Graphics Card
Mar 2016
Release Date
Mar 2014
GeForce 900M
Generation
GeForce 800M
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x8
Clock Speeds
965 MHz
Base Clock
1029 MHz
993 MHz
Boost Clock
1124 MHz
900 MHz
Memory Clock
1001 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
DDR3
64bit
Memory Bus
64bit
14.40GB/s
Bandwidth
16.02GB/s
Render Config
-
-
-
-
-
-
256
Shading Units
384
24
TMUs
16
8
ROPs
8
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
64 KB (per SMM)
1024 KB
L2 Cache
1024 KB
-
-
-
Theoretical Performance
7.944 GPixel/s
Pixel Rate
8.992 GPixel/s
23.83 GTexel/s
Texture Rate
17.98 GTexel/s
-
-
-
508.4 GFLOPS
FP32 (float)
863.2 GFLOPS
15.89 GFLOPS
FP64 (double)
26.98 GFLOPS
Board Design
16W
TDP
33W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
GM108
GPU Name
GM108
N16V-GMR1-S
GPU Variant
N15S-GT
Maxwell
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
Unknown
Transistors
Unknown
Unknown
Die Size
Unknown
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
5.0
CUDA
5.0
5.1
Shader Model
5.1
