NVIDIA GeForce RTX 4090 vs AMD Radeon RX 6400

Compare NVIDIA GeForce RTX 4090 24 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

$ 1819.99

$ 130.03

$ 1689.96 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

33119 points

1695% significantly better overall score

1845 points

Flux Core frame rate

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

787 FPS

745 FPS significantly higher Flux Core frame rate

42 FPS

Electron frame rate

Randomly generated noise sphere test

382 FPS

353 FPS significantly higher Electron frame rate

28 FPS

City frame rate

Procedurally generated city scene with voxel rendering

567 FPS

530 FPS significantly higher City frame rate

36 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

318 FPS

302 FPS significantly higher Clouds frame rate

16 FPS

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

9236 points

5601% significantly higher 3DMark Graphics score

162 points

Blender score

Cycles Render (Samples per minute)

11723.75 points

3769% significantly higher Blender score

302.98 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

318192 points

847% significantly higher Geekbench 6 (OpenCL) score

33586 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

273214 points

564% significantly higher Geekbench 6 (Vulkan) score

41105 points

Specifications

Core Clock Speed

Nominal chip frequency

2235 MHz

16% slightly higher core clock speed

1923 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2520 MHz

8% slightly higher boost clock speed

2321 MHz

Memory

Onboard memory size for textures and vertices

24 GiB

499% significantly more memory

4 GiB

Memory Bus Width

Number of parallel lines to the memory chips

384 Bit

499% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

1010 GB/s

689% significantly higher memory bandwidth

128 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

450 W

53 W

749% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

483.8 Gigapixels/s

551% significantly higher pixel rate

74.3 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

1290 Gigatexels/s

1057% significantly higher texture rate

111.4 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

82.58 TFLOPS

2213% significantly better floating point performance

3.57 TFLOPS

Shading Units

Number of processors dedicated to shader processing

16384

2033% significantly more shading units

768

Texture Mapping Units

Number of processors dedicated to applying textures

512

966% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

192

499% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

2nd of 586

217th of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2022 October

2022 January

Memory Type

The type of memory used by this chip

GDDR6X

GDDR6

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

GeForce RTX 4090 vs Radeon RX 6400 comparison

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

In our comparison, the GeForce RTX 4090 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 GeForce RTX 4090 also has a slightly 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.

Next up, in terms of GPU memory, the GeForce RTX 4090 has significantly more memory with 24 GiB of memory compared to 4 GiB. If you're planning at playing games at high resolutions with high-quality textures, you will need a lot of memory.

In addition, the Radeon RX 6400 has a significantly lower TDP at 53 W when compared to the GeForce RTX 4090 at 450 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 is better than the Radeon RX 6400.