NVIDIA GeForce RTX 3090 vs AMD Radeon RX 6900 XT

Compare NVIDIA GeForce RTX 3090 24 GB vs AMD Radeon RX 6900 XT 16 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

GPU Comparison

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Price

The cheapest price from our partner retailers

$ 1,080
$ 756
$ 324.00 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

190 %
232 %
22% slightly better overall score

Flux Core frame rate

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

242 FPS
264 FPS
22 FPS slightly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

140 FPS
207 FPS
68 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

192 FPS
230 FPS
38 FPS slightly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

112 FPS
117 FPS
5 FPS slightly higher Clouds frame rate

Free GPU Benchmark

Want to compare your graphics card against the GeForce RTX 3090 and the Radeon RX 6900 XT? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (OpenCL) score

OpenCL compute benchmark

204,921
20% slightly higher Geekbench (OpenCL) score
170,008

Geekbench (Vulkan) score

Vulkan compute benchmark

138,859
21% slightly higher Geekbench (Vulkan) score
114,610

Specifications

Core Clock Speed

Nominal chip frequency

1,400 MHz
1,825 MHz
30% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1,695 MHz
2,250 MHz
32% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

24 GiB
49% significantly more memory
16 GiB

Memory Bus Width

Number of parallel lines to the memory chips

384 Bit
49% significantly larger memory bus width
256 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

936 GB/s
82% significantly higher memory bandwidth
512 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

350 W
300 W
16% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

190 Gigapixels/s
288 Gigapixels/s
51% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

556 Gigatexels/s
720 Gigatexels/s
29% slightly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

36 TFLOPS
54% significantly better floating point performance
23 TFLOPS

Shading Units

Number of processors dedicated to shader processing

10,496
104% significantly more shading units
5,120

Texture Mapping Units

Number of processors dedicated to applying textures

328
2% slightly more texture mapping units
320

Render Output Processors

Number of processors dedicated to final pixel rendering

112
128
14% slightly more render output processors

Other details

Rank

Ranking in the hardwareDB database

4th of 526
2nd of 526

Family

The product line

-
Radeon RX 6000 Series

Release date

The official date of release of this chip

September 2020
August 2020

Memory Type

The type of memory used by this chip

GDDR6X
GDDR6

DirectX Support

Maximum version of DirectX supported

12.0
12.0

OpenGL Support

Maximum version of OpenGL supported

4.6
4.6

GeForce RTX 3090 vs Radeon RX 6900 XT comparison

In our benchmarks, the Radeon RX 6900 XT beats the GeForce RTX 3090 in gaming performance.

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.

Furthermore, the spec sheet for both these GPUs show that the GeForce RTX 3090 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 6900 XT has a slightly lower TDP at 300 W when compared to the GeForce RTX 3090 at 350 W. TDP (Thermal Design Power) measures total heat output from the chip.

In terms of raw gaming performance in our GPU benchmark, the Radeon RX 6900 XT is better than the GeForce RTX 3090.

GPU comparison

Use the table to the left to compare both GPUs, the advantages and disadvantages of each are shown.

GPU rating

Our overall benchmark score measures CPU performance in gaming and compute scenarios.

Graphics card specifications

Core Clock speed and Boost clock speed directly influence gaming performance, typically the higher, the better. When thermals and power delivery allow, the GPU will raise its core clock to the boost clock for even more performance. A higher core clock speed may cause a higher TDP, however.

Memory is important for high resolutions and high resolution textures in games, if you're gaming at 4K or even 8K lots of memory is required. Too little memory may result in stuttering as the GPU tries to swap and fit everything in memory.

Memory bandwidth relates to the speed at which the GPU memory can be accessed. Higher speed is better as the graphics card won't need to wait for memory access before rendering a frame to the screen.

The memory bus width doesn't directly impact performance but, it the memory bandwidth. It measures how much data can be sent at one to and from the memory.

TDP (Thermal Design Power) is a measurement of how much energy is lost as heat when a GPU is running. This has an impact on system temperatures. If temperatures get too high (typically around 100 °C or 200 °F), the GPU will lower its performance in order to prevent damage to the chip. Adequate cooling is essential for good performance. If you're comparing two laptop GPUs, you may take this into account when choosing between the two, since a cooler laptop generally runs faster for longer.

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