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GeForce RTX 3090 vs Radeon RX 7900 XT

Intro

The GeForce RTX 3090 comes with core speeds of 1395 MHz on the GPU, and 1219 MHz on the 24576 MB of GDDR6X memory. It features 10496 SPUs as well as 328 Texture Address Units and 112 ROPs.

Compare those specifications to the Radeon RX 7900 XT, which makes use of a 5 nm design. AMD has set the core frequency at 1500 MHz. The GDDR6 memory is set to run at a frequency of 2500 MHz on this card. It features 5376 SPUs along with 336 Texture Address Units and 192 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 7900 XT 300 Watts
GeForce RTX 3090 350 Watts
Difference: 50 Watts (17%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 3090 should in theory be a little bit better than the Radeon RX 7900 XT overall. (explain)

GeForce RTX 3090 958668 MB/sec
Radeon RX 7900 XT 819200 MB/sec
Difference: 139468 (17%)

Texel Rate

The Radeon RX 7900 XT should be just a bit (more or less 10%) faster with regards to AF than the GeForce RTX 3090. (explain)

Radeon RX 7900 XT 504000 Mtexels/sec
GeForce RTX 3090 457560 Mtexels/sec
Difference: 46440 (10%)

Pixel Rate

The Radeon RX 7900 XT will be quite a bit (more or less 84%) better at FSAA than the GeForce RTX 3090, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
GeForce RTX 3090 156240 Mpixels/sec
Difference: 131760 (84%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce RTX 3090

Amazon.com

Check prices at:

Radeon RX 7900 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce RTX 3090 Radeon RX 7900 XT
Manufacturer nVidia AMD
Year September 2020 December 2022
Code Name GA102-300-A1 Navi 31 XT
Memory 24576 MB 20480 MB
Core Speed 1395 MHz 1500 MHz
Memory Speed 1219 GB/s 2500 GB/s
Power (Max TDP) 350 watts 300 watts
Bandwidth 958668 MB/sec 819200 MB/sec
Texel Rate 457560 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 156240 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 10496 5376
Texture Mapping Units 328 336
Render Output Units 112 192
Bus Type GDDR6X GDDR6
Bus Width 384-bit 320-bit
Fab Process 8 nm 5 nm
Transistors 28300 million 57700 million
Bus PCIe 4.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce RTX 3090

Amazon.com

Check prices at:

Radeon RX 7900 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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