AMD Radeon RX 6400 vs NVIDIA GeForce RTX 4090 Laptop

Compare AMD Radeon RX 6400 4 GB vs NVIDIA GeForce RTX 4090 Laptop, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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GPU Comparison

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AMD Radeon RX 6400

NVIDIA GeForce RTX 4090 Laptop

Benchmark Score

Overall Score

General gaming and workstation score

1864 points

14473 points

676% significantly better overall score

Flux Core frame rate

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

42 FPS

355 FPS

313 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

28 FPS

182 FPS

153 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

36 FPS

253 FPS

217 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

16 FPS

145 FPS

129 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

302.98 points

7059.26 points

2229% significantly higher Blender score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

33586 points

181715 points

441% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

41105 points

172409 points

319% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1923 MHz

44% significantly higher core clock speed

1335 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2321 MHz

36% slightly higher boost clock speed

1695 MHz

Memory Bus Width

Number of parallel lines to the memory chips

64 Bit

256 Bit

300% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

128 GB/s

576 GB/s

350% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

53 W

126% significantly lower TDP

120 W

Pixel Rate

Number of pixels that can be rendered per second

74.3 Gigapixels/s

189.8 Gigapixels/s

155% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

111.4 Gigatexels/s

515.3 Gigatexels/s

362% significantly higher texture rate

Shading Units

Number of processors dedicated to shader processing

768

9728

1166% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

304

533% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

112

250% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

219th of 597

20th of 597

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2022 January

2023 January

Memory Type

The type of memory used by this chip

GDDR6

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 6400 vs GeForce RTX 4090 Laptop comparison

In our benchmarks, the GeForce RTX 4090 Laptop beats the Radeon RX 6400 in gaming performance.

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 slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

In addition, the Radeon RX 6400 has a significantly lower TDP at 53 W when compared to the GeForce RTX 4090 Laptop at 120 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 GeForce RTX 4090 Laptop is better than the Radeon RX 6400.