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GeForce RTX 3080 Ti vs Radeon RX 7900 XT

Intro

The GeForce RTX 3080 Ti features a clock speed of 1365 MHz and a GDDR6X memory speed of 1188 MHz. It also makes use of a 384-bit bus, and makes use of a 8 nm design. It is comprised of 10240 SPUs, 320 Texture Address Units, and 112 ROPs.

Compare those specs 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 works 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 3080 Ti 350 Watts
Difference: 50 Watts (17%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 Ti should be 14% faster than the Radeon RX 7900 XT in general, due to its greater bandwidth. (explain)

GeForce RTX 3080 Ti 934297 MB/sec
Radeon RX 7900 XT 819200 MB/sec
Difference: 115097 (14%)

Texel Rate

The Radeon RX 7900 XT is just a bit (more or less 15%) more effective at texture filtering than the GeForce RTX 3080 Ti. (explain)

Radeon RX 7900 XT 504000 Mtexels/sec
GeForce RTX 3080 Ti 436800 Mtexels/sec
Difference: 67200 (15%)

Pixel Rate

The Radeon RX 7900 XT is a lot (approximately 88%) faster with regards to AA than the GeForce RTX 3080 Ti, and capable of handling higher screen resolutions better. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
GeForce RTX 3080 Ti 152880 Mpixels/sec
Difference: 135120 (88%)

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 Ti

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 Ti Radeon RX 7900 XT
Manufacturer nVidia AMD
Year June 2021 December 2022
Code Name Ampere GA102-225-A1 Navi 31 XT
Memory 12288 MB 20480 MB
Core Speed 1365 MHz 1500 MHz
Memory Speed 1188 GB/s 2500 GB/s
Power (Max TDP) 350 watts 300 watts
Bandwidth 934297 MB/sec 819200 MB/sec
Texel Rate 436800 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 152880 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 10240 5376
Texture Mapping Units 320 336
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: Bandwidth is the maximum amount of information (counted in MB per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 3080 Ti

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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