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GeForce RTX 3080 Ti vs Radeon RX 7900 XT

Intro

The GeForce RTX 3080 Ti comes with clock speeds of 1365 MHz on the GPU, and 1188 MHz on the 12288 MB of GDDR6X memory. It features 10240 SPUs as well as 320 TAUs and 112 Rasterization Operator Units.

Compare those specs to the Radeon RX 7900 XT, which features a core clock frequency of 1500 MHz and a GDDR6 memory speed of 2500 MHz. It also features a 320-bit memory bus, and makes use of a 5 nm design. It is comprised of 5376 SPUs, 336 Texture Address Units, and 192 Raster Operation Units.

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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

As far as performance goes, the GeForce RTX 3080 Ti should theoretically be a bit better than the Radeon RX 7900 XT in general. (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 should be a small bit (about 15%) better 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 quite a bit (more or less 88%) better at full screen anti-aliasing than the GeForce RTX 3080 Ti, and also should be able to handle higher resolutions without losing too much performance. (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 largest amount of data (counted in MB per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max 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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