AMD Radeon RX 6900 XT vs NVIDIA GeForce RTX 4080 Laptop

Compare AMD Radeon RX 6900 XT 16 GB vs NVIDIA GeForce RTX 4080 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 6900 XT

NVIDIA GeForce RTX 4080 Laptop

Benchmark Score

Overall Score

General gaming and workstation score

14121 points

27% slightly better overall score

11108 points

Flux Core frame rate

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

286 FPS

1 FPS slightly higher Flux Core frame rate

285 FPS

Electron frame rate

Randomly generated noise sphere test

208 FPS

68 FPS significantly higher Electron frame rate

140 FPS

City frame rate

Procedurally generated city scene with voxel rendering

257 FPS

64 FPS significantly higher City frame rate

193 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

122 FPS

12 FPS slightly higher Clouds frame rate

110 FPS

Free GPU Benchmark

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

2478.22 points

5482.15 points

121% significantly higher Blender score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

167644 points

4% slightly higher Geekbench 6 (OpenCL) score

159842 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

171121 points

17% slightly higher Geekbench 6 (Vulkan) score

145828 points

Specifications

Core Clock Speed

Nominal chip frequency

1825 MHz

41% slightly higher core clock speed

1290 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2250 MHz

35% slightly higher boost clock speed

1665 MHz

Memory Bus Width

Number of parallel lines to the memory chips

256 Bit

33% slightly larger memory bus width

192 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

512 GB/s

18% slightly higher memory bandwidth

432 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

300 W

110 W

172% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

288 Gigapixels/s

116% significantly higher pixel rate

133.2 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

720 Gigatexels/s

86% significantly higher texture rate

386.3 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

23.04 TFLOPS

24.72 TFLOPS

7% slightly better floating point performance

Shading Units

Number of processors dedicated to shader processing

5120

7424

44% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

320

37% slightly more texture mapping units

232

Render Output Processors

Number of processors dedicated to final pixel rendering

128

60% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

24th of 586

34th of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2020 August

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 6900 XT vs GeForce RTX 4080 Laptop benchmarks

For gaming, the Radeon RX 6900 XT graphics card is better than the GeForce RTX 4080 Laptop in our tests.

The Radeon RX 6900 XT 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 6900 XT 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.

In addition, the GeForce RTX 4080 Laptop has a significantly lower TDP at 110 W when compared to the Radeon RX 6900 XT at 300 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In terms of raw gaming performance in our GPU benchmark, the Radeon RX 6900 XT is better than the GeForce RTX 4080 Laptop.