NVIDIA GeForce 920MX vs NVIDIA GeForce 840M

Compare NVIDIA GeForce 920MX vs NVIDIA GeForce 840M, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

213 points

315 points

47% significantly better overall score

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

4 FPS

8 FPS

4 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

3 FPS

6 FPS

2 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

3 FPS

5 FPS

2 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

3 FPS

5 FPS

2 FPS significantly higher Clouds frame rate

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

47.80 points

5% slightly higher Blender score

45.23 points

Geekbench 5 (CUDA) score

CUDA compute benchmark

4274 points

5629 points

31% slightly higher Geekbench 5 (CUDA) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

4210 points

5938 points

41% slightly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

3723 points

5207 points

39% slightly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

4072 points

6089 points

49% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

3591 points

5261 points

46% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

965 MHz

1029 MHz

6% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

993 MHz

1124 MHz

13% slightly higher boost clock speed

Memory Bus Width

Number of parallel lines to the memory chips

64 Bit

Identical

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

14.4 GB/s

16.02 GB/s

11% slightly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

16 W

106% significantly lower TDP

33 W

Pixel Rate

Number of pixels that can be rendered per second

7.94 Gigapixels/s

8.99 Gigapixels/s

13% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

23.83 Gigatexels/s

32% slightly higher texture rate

17.98 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

256

384

49% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

49% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

423rd of 586

372nd of 586

Release date

The official date of release of this chip

2016 March

2014 March

Memory Type

The type of memory used by this chip

DDR3

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

GeForce 920MX vs GeForce 840M specs and performance

For gaming, the GeForce 840M graphics card is better than the GeForce 920MX in our tests.

In our comparison, the GeForce 840M has a slightly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. In addition, the GeForce 840M also has a slightly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

In addition, the GeForce 920MX has a significantly lower TDP at 16 W when compared to the GeForce 840M at 33 W. Heat output doesn't match power consumption directly but, it's a good estimate.

According to the results of the hardwareDB benchmark utility, the GeForce 840M is faster than the GeForce 920MX.