AMD Radeon RX 6600 vs AMD Radeon RX 6400

Compare AMD Radeon RX 6600 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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Price

The cheapest price from our partner retailers

$ 200.88
$ 130.03
$ 70.85 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

4302 points
133% significantly better overall score
1845 points

Flux Core frame rate

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

86 FPS
44 FPS significantly higher Flux Core frame rate
42 FPS

Electron frame rate

Randomly generated noise sphere test

65 FPS
36 FPS significantly higher Electron frame rate
28 FPS

City frame rate

Procedurally generated city scene with voxel rendering

78 FPS
41 FPS significantly higher City frame rate
36 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

37 FPS
21 FPS significantly higher Clouds frame rate
16 FPS

Free GPU Benchmark

Want to compare your graphics card against the Radeon RX 6600 and the Radeon RX 6400? Download our free and quick PC Performance Test.

Gaming Benchmarks

Cyberpunk 2077 FPS

Cyberpunk 2077 FPS

Ultra settings at 1080p

50 FPS
59 FPS
9 FPS slightly higher Cyberpunk 2077 FPS
Red Dead Redemption 2 FPS

Red Dead Redemption 2 FPS

Ultra settings at 1080p

70 FPS
28 FPS significantly higher Red Dead Redemption 2 FPS
42 FPS
Grand Theft Auto V FPS

Grand Theft Auto V FPS

Very High settings at 1080p

126 FPS
57 FPS significantly higher Grand Theft Auto V FPS
69 FPS
Fortnite FPS

Fortnite FPS

Low settings at 1080p

155 FPS
171 FPS
16 FPS slightly higher Fortnite FPS

Other Benchmarks

3DMark Graphics score

3DMark Graphics score

High-end graphics benchmark

8131 points
4919% significantly higher 3DMark Graphics score
162 points
Blender score

Blender score

Cycles Render (Samples per minute)

969.87 points
220% significantly higher Blender score
302.98 points
Geekbench 6 (OpenCL) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

73158 points
117% significantly higher Geekbench 6 (OpenCL) score
33586 points
Geekbench 6 (Vulkan) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

86589 points
110% significantly higher Geekbench 6 (Vulkan) score
41105 points

Specifications

Core Clock Speed

Nominal chip frequency

1626 MHz
1923 MHz
18% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

2491 MHz
7% slightly higher boost clock speed
2321 MHz

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

128 Bit
100% significantly larger memory bus width
64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

224 GB/s
75% significantly higher memory bandwidth
128 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

132 W
53 W
149% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

159.4 Gigapixels/s
114% significantly higher pixel rate
74.3 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

279 Gigatexels/s
150% significantly higher texture rate
111.4 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

8.93 TFLOPS
150% significantly better floating point performance
3.57 TFLOPS

Shading Units

Number of processors dedicated to shader processing

1792
133% significantly more shading units
768

Texture Mapping Units

Number of processors dedicated to applying textures

112
133% significantly more texture mapping units
48

Render Output Processors

Number of processors dedicated to final pixel rendering

64
100% significantly more render output processors
32

Other details

Rank

Ranking in the hardwareDB database

118th of 586
217th of 586

Family

The product line

Radeon RX 6000 Series
Radeon RX 6000 Series

Release date

The official date of release of this chip

2021 October
2022 January

Memory Type

The type of memory used by this chip

GDDR6
GDDR6

DirectX Support

Maximum version of DirectX supported

12.0
12.0

OpenGL Support

Maximum version of OpenGL supported

4.6
4.6

Radeon RX 6600 vs Radeon RX 6400 comparison

According to the hardwareDB Benchmark, the Radeon RX 6600 GPU is faster than the Radeon RX 6400 in gaming.

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. Despite this, the Radeon RX 6600 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.

As stated by the manufacturer, the Radeon RX 6600 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 6600 at 132 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 6600 over the Radeon RX 6400.

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