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GeForce RTX 2080 vs Radeon RX 6800 XT

Intro

The GeForce RTX 2080 features a GPU core speed of 1515 MHz, and the 8192 MB of GDDR6 memory is set to run at 1750 MHz through a 256-bit bus. It also is made up of 2944 SPUs, 184 TAUs, and 64 Raster Operation Units.

Compare those specs to the Radeon RX 6800 XT, which comes with core speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 4608 SPUs as well as 288 TAUs and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 215 Watts
Radeon RX 6800 XT 300 Watts
Difference: 85 Watts (40%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 XT is 14% faster than the GeForce RTX 2080 in general, due to its greater data rate. (explain)

Radeon RX 6800 XT 524288 MB/sec
GeForce RTX 2080 458752 MB/sec
Difference: 65536 (14%)

Texel Rate

The Radeon RX 6800 XT should be quite a bit (about 89%) better at anisotropic filtering than the GeForce RTX 2080. (explain)

Radeon RX 6800 XT 525600 Mtexels/sec
GeForce RTX 2080 278760 Mtexels/sec
Difference: 246840 (89%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 6800 XT is a better choice, by a large margin. (explain)

Radeon RX 6800 XT 233600 Mpixels/sec
GeForce RTX 2080 96960 Mpixels/sec
Difference: 136640 (141%)

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

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 Radeon RX 6800 XT
Manufacturer nVidia AMD
Year September 2018 November 2020
Code Name TU104-400A-A1 Navi 21
Memory 8192 MB 16384 MB
Core Speed 1515 MHz 1825 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 215 watts 300 watts
Bandwidth 458752 MB/sec 524288 MB/sec
Texel Rate 278760 Mtexels/sec 525600 Mtexels/sec
Pixel Rate 96960 Mpixels/sec 233600 Mpixels/sec
Unified Shaders 2944 4608
Texture Mapping Units 184 288
Render Output Units 64 128
Bus Type GDDR6 GDDR6
Bus Width 256-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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, the result 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, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce RTX 2080

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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