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GeForce RTX 2080 Ti vs Radeon RX 6800 XT

Intro

The GeForce RTX 2080 Ti comes with a clock frequency of 1350 MHz and a GDDR6 memory speed of 1750 MHz. It also features a 352-bit memory bus, and uses a 12 nm design. It is comprised of 4352 SPUs, 272 TAUs, and 88 Raster Operation Units.

Compare all that to the Radeon RX 6800 XT, which features core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 4608 SPUs as well as 288 Texture Address Units and 128 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 Ti 250 Watts
Radeon RX 6800 XT 300 Watts
Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 Ti will be 20% quicker than the Radeon RX 6800 XT overall, due to its higher data rate. (explain)

GeForce RTX 2080 Ti 630784 MB/sec
Radeon RX 6800 XT 524288 MB/sec
Difference: 106496 (20%)

Texel Rate

The Radeon RX 6800 XT should be much (about 43%) better at texture filtering than the GeForce RTX 2080 Ti. (explain)

Radeon RX 6800 XT 525600 Mtexels/sec
GeForce RTX 2080 Ti 367200 Mtexels/sec
Difference: 158400 (43%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6800 XT is the winner, by far. (explain)

Radeon RX 6800 XT 233600 Mpixels/sec
GeForce RTX 2080 Ti 118800 Mpixels/sec
Difference: 114800 (97%)

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 2080 Ti

Amazon.com

Check prices at:

Radeon RX 6800 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 2080 Ti Radeon RX 6800 XT
Manufacturer nVidia AMD
Year September 2018 November 2020
Code Name TU102-300A-K1-A1 Navi 21
Memory 11264 MB 16384 MB
Core Speed 1350 MHz 1825 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 250 watts 300 watts
Bandwidth 630784 MB/sec 524288 MB/sec
Texel Rate 367200 Mtexels/sec 525600 Mtexels/sec
Pixel Rate 118800 Mpixels/sec 233600 Mpixels/sec
Unified Shaders 4352 4608
Texture Mapping Units 272 288
Render Output Units 88 128
Bus Type GDDR6 GDDR6
Bus Width 352-bit 256-bit
Fab Process 12 nm 7 nm
Transistors (Unknown) million 26800 million
Bus PCIe 3.0 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 information (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must 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 AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce RTX 2080 Ti

Amazon.com

Check prices at:

Radeon RX 6800 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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