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GeForce RTX 3080 Ti vs Radeon RX 7900 XT

Intro

The GeForce RTX 3080 Ti has a GPU clock speed of 1365 MHz, and the 12288 MB of GDDR6X RAM is set to run at 1188 MHz through a 384-bit bus. It also is comprised of 10240 Stream Processors, 320 Texture Address Units, and 112 ROPs.

Compare all that to the Radeon RX 7900 XT, which has a core clock frequency of 1500 MHz and a GDDR6 memory frequency of 2500 MHz. It also features a 320-bit memory bus, and makes use of a 5 nm design. It features 5376 SPUs, 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

In theory, the GeForce RTX 3080 Ti should be 14% quicker than the Radeon RX 7900 XT overall, due to its higher data rate. (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 bit (more or less 15%) faster with regards to 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

If using high levels of AA is important to you, then the Radeon RX 7900 XT is a better choice, by far. (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

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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 max amount of information (measured in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential 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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