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GeForce RTX 3080 vs Radeon RX 7900 XT

Intro

The GeForce RTX 3080 features a GPU core speed of 1440 MHz, and the 10240 MB of GDDR6X memory is set to run at 1188 MHz through a 320-bit bus. It also is made up of 8704 Stream Processors, 272 Texture Address Units, and 96 Raster Operation Units.

Compare all of that to the Radeon RX 7900 XT, which uses a 5 nm design. AMD has clocked the core speed at 1500 MHz. The GDDR6 memory works at a frequency of 2500 MHz on this card. It features 5376 SPUs along with 336 TAUs and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 7900 XT 300 Watts
GeForce RTX 3080 320 Watts
Difference: 20 Watts (7%)

Memory Bandwidth

In theory, the Radeon RX 7900 XT will be 5% faster than the GeForce RTX 3080 in general, because of its higher bandwidth. (explain)

Radeon RX 7900 XT 819200 MB/sec
GeForce RTX 3080 778547 MB/sec
Difference: 40653 (5%)

Texel Rate

The Radeon RX 7900 XT should be quite a bit (approximately 29%) more effective at anisotropic filtering than the GeForce RTX 3080. (explain)

Radeon RX 7900 XT 504000 Mtexels/sec
GeForce RTX 3080 391680 Mtexels/sec
Difference: 112320 (29%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 7900 XT is superior to the GeForce RTX 3080, and very much so. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
GeForce RTX 3080 138240 Mpixels/sec
Difference: 149760 (108%)

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 3080

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 3080 Radeon RX 7900 XT
Manufacturer nVidia AMD
Year September 2020 December 2022
Code Name Ampere GA102-200-KD-A1 Navi 31 XT
Memory 10240 MB 20480 MB
Core Speed 1440 MHz 1500 MHz
Memory Speed 1188 GB/s 2500 GB/s
Power (Max TDP) 320 watts 300 watts
Bandwidth 778547 MB/sec 819200 MB/sec
Texel Rate 391680 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 138240 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 8704 5376
Texture Mapping Units 272 336
Render Output Units 96 192
Bus Type GDDR6X GDDR6
Bus Width 320-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 maximum amount of information (in units of MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 rate is also dependant on quite a few other factors, most notably 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 3080

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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