AMD Radeon RX 6400 vs NVIDIA GeForce 840M

Compare AMD Radeon RX 6400 4 GB 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

1845 points

485% significantly better overall score

315 points

Flux Core frame rate

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

42 FPS

34 FPS significantly higher Flux Core frame rate

8 FPS

Electron frame rate

Randomly generated noise sphere test

28 FPS

23 FPS significantly higher Electron frame rate

6 FPS

City frame rate

Procedurally generated city scene with voxel rendering

36 FPS

31 FPS significantly higher City frame rate

5 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

16 FPS

11 FPS significantly higher Clouds frame rate

5 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

162 points

503 points

210% significantly higher 3DMark Graphics score

Blender score

Cycles Render (Samples per minute)

302.98 points

569% significantly higher Blender score

45.23 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

33586 points

451% significantly higher Geekbench 6 (OpenCL) score

6089 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

41105 points

681% significantly higher Geekbench 6 (Vulkan) score

5261 points

Specifications

Core Clock Speed

Nominal chip frequency

1923 MHz

86% significantly higher core clock speed

1029 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2321 MHz

106% significantly higher boost clock speed

1124 MHz

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

128 GB/s

699% significantly higher memory bandwidth

16.02 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

53 W

33 W

60% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

74.3 Gigapixels/s

726% significantly higher pixel rate

8.99 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

111.4 Gigatexels/s

519% significantly higher texture rate

17.98 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

768

100% significantly more shading units

384

Texture Mapping Units

Number of processors dedicated to applying textures

200% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

300% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

217th of 586

371st of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2022 January

2014 March

Memory Type

The type of memory used by this chip

GDDR6

DDR3

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 6400 vs GeForce 840M comparison

According to the hardwareDB Benchmark, the Radeon RX 6400 GPU is faster than the GeForce 840M in gaming.

In our comparison, the Radeon RX 6400 has a significantly 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 Radeon RX 6400 also has a significantly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

In addition, the GeForce 840M has a significantly lower TDP at 33 W when compared to the Radeon RX 6400 at 53 W. TDP (Thermal Design Power) measures total heat output from the chip.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 6400 over the GeForce 840M.