AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 4090

Compare AMD Radeon RX 6800 XT 16 GB vs NVIDIA GeForce RTX 4090 24 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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NVIDIA GeForce RTX 4090

Price

The cheapest price from our partner retailers

$ 659.00

$ 1160.99 significantly less expensive

$ 1819.99

Benchmark Score

Overall Score

General gaming and workstation score

11265 points

33119 points

193% significantly better overall score

Flux Core frame rate

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

231 FPS

787 FPS

556 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

167 FPS

382 FPS

215 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

204 FPS

567 FPS

363 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

97 FPS

318 FPS

221 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

19436 points

110% significantly higher 3DMark Graphics score

9236 points

Blender score

Cycles Render (Samples per minute)

2414.65 points

11723.75 points

385% significantly higher Blender score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

154801 points

318192 points

105% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

157877 points

273214 points

73% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

2015 MHz

2235 MHz

10% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

2250 MHz

2520 MHz

11% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

16 GiB

24 GiB

49% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

256 Bit

384 Bit

49% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

512 GB/s

1010 GB/s

97% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

300 W

49% significantly lower TDP

450 W

Pixel Rate

Number of pixels that can be rendered per second

288 Gigapixels/s

483.8 Gigapixels/s

67% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

648 Gigatexels/s

1290 Gigatexels/s

99% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

20.74 TFLOPS

82.58 TFLOPS

298% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

4608

16384

255% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

288

512

77% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

128

192

49% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

33rd of 586

2nd of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2020 November

2022 October

Memory Type

The type of memory used by this chip

GDDR6

GDDR6X

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 6800 XT vs GeForce RTX 4090 comparison

For gaming, the GeForce RTX 4090 graphics card is better than the Radeon RX 6800 XT in our tests.

Our database shows that 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 maximum frequency the chip can reach if power delivery and thermals allow.

Furthermore, the spec sheet for both these GPUs show that the GeForce RTX 4090 has significantly more memory with 24 GiB of memory compared to 16 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 6800 XT has a significantly lower TDP at 300 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.

According to the results of the hardwareDB benchmark utility, the GeForce RTX 4090 is faster than the Radeon RX 6800 XT.