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GeForce RTX 3080 Ti vs Radeon RX 7900 XTX

Intro

The GeForce RTX 3080 Ti features core speeds of 1365 MHz on the GPU, and 1188 MHz on the 12288 MB of GDDR6X RAM. It features 10240 SPUs as well as 320 Texture Address Units and 112 Rasterization Operator Units.

Compare those specs to the Radeon RX 7900 XTX, which comes with clock speeds of 1855 MHz on the GPU, and 2500 MHz on the 24576 MB of GDDR6 memory. It features 6144 SPUs along with 384 Texture Address Units and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080 Ti 350 Watts
Radeon RX 7900 XTX 355 Watts
Difference: 5 Watts (1%)

Memory Bandwidth

In theory, the Radeon RX 7900 XTX should perform a little bit faster than the GeForce RTX 3080 Ti overall. (explain)

Radeon RX 7900 XTX 983040 MB/sec
GeForce RTX 3080 Ti 934297 MB/sec
Difference: 48743 (5%)

Texel Rate

The Radeon RX 7900 XTX will be much (approximately 63%) faster with regards to AF than the GeForce RTX 3080 Ti. (explain)

Radeon RX 7900 XTX 712320 Mtexels/sec
GeForce RTX 3080 Ti 436800 Mtexels/sec
Difference: 275520 (63%)

Pixel Rate

The Radeon RX 7900 XTX will be quite a bit (about 133%) faster with regards to full screen anti-aliasing than the GeForce RTX 3080 Ti, and capable of handling higher screen resolutions better. (explain)

Radeon RX 7900 XTX 356160 Mpixels/sec
GeForce RTX 3080 Ti 152880 Mpixels/sec
Difference: 203280 (133%)

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 XTX

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 XTX
Manufacturer nVidia AMD
Year June 2021 December 2022
Code Name Ampere GA102-225-A1 Navi 31 XTX
Memory 12288 MB 24576 MB
Core Speed 1365 MHz 1855 MHz
Memory Speed 1188 GB/s 2500 GB/s
Power (Max TDP) 350 watts 355 watts
Bandwidth 934297 MB/sec 983040 MB/sec
Texel Rate 436800 Mtexels/sec 712320 Mtexels/sec
Pixel Rate 152880 Mpixels/sec 356160 Mpixels/sec
Unified Shaders 10240 6144
Texture Mapping Units 320 384
Render Output Units 112 192
Bus Type GDDR6X GDDR6
Bus Width 384-bit 384-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 information (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, 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 number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce RTX 3080 Ti

Amazon.com

Check prices at:

Radeon RX 7900 XTX

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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