AMD Radeon RX 590 vs AMD Radeon RX 6400

Compare AMD Radeon RX 590 8 GB vs AMD Radeon RX 6400 4 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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AMD Radeon RX 6400

Price

The cheapest price from our partner retailers

$ 248.79

$ 130.03

$ 118.76 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

2466 points

33% slightly better overall score

1845 points

Flux Core frame rate

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

52 FPS

10 FPS slightly higher Flux Core frame rate

42 FPS

Electron frame rate

Randomly generated noise sphere test

38 FPS

9 FPS significantly higher Electron frame rate

28 FPS

City frame rate

Procedurally generated city scene with voxel rendering

52 FPS

15 FPS significantly higher City frame rate

36 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

20 FPS

4 FPS slightly higher Clouds frame rate

16 FPS

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

4757 points

32% slightly higher 3DMark Graphics score

3579 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

45746 points

36% slightly higher Geekbench 6 (OpenCL) score

33586 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

55240 points

34% slightly higher Geekbench 6 (Vulkan) score

41105 points

Specifications

Core Clock Speed

Nominal chip frequency

1545 MHz

1923 MHz

24% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1545 MHz

2321 MHz

50% significantly higher boost clock speed

Memory

Onboard memory size for textures and vertices

8 GiB

100% significantly more memory

4 GiB

Memory Bus Width

Number of parallel lines to the memory chips

256 Bit

300% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

256 GB/s

100% significantly higher memory bandwidth

128 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

175 W

53 W

230% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

49.54 Gigapixels/s

74.3 Gigapixels/s

49% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

222.48 Gigatexels/s

99% significantly higher texture rate

111.4 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

7.12 TFLOPS

99% significantly better floating point performance

3.57 TFLOPS

Shading Units

Number of processors dedicated to shader processing

2304

200% significantly more shading units

768

Texture Mapping Units

Number of processors dedicated to applying textures

144

200% 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

179th of 586

217th of 586

Family

The product line

Radeon RX 500 Series

Radeon RX 6000 Series

Release date

The official date of release of this chip

2018 November

2022 January

Memory Type

The type of memory used by this chip

GDDR5

GDDR6

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

4.6

Radeon RX 590 vs Radeon RX 6400 specs and performance

For gaming, the Radeon RX 590 graphics card is better than the Radeon RX 6400 in our tests.

Our database shows that the Radeon RX 6400 has a slightly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the Radeon RX 6400 also has a significantly higher boost clock speed. The boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.

As stated by the manufacturer, the Radeon RX 590 has significantly more memory with 8 GiB of memory compared to 4 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Radeon RX 6400 has a significantly lower TDP at 53 W when compared to the Radeon RX 590 at 175 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In terms of raw gaming performance in our GPU benchmark, the Radeon RX 590 is better than the Radeon RX 6400.