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GeForce RTX 2080 vs Radeon RX 6800 XT

Intro

The GeForce RTX 2080 uses a 12 nm design. nVidia has clocked the core speed at 1515 MHz. The GDDR6 memory runs at a frequency of 1750 MHz on this specific card. It features 2944 SPUs as well as 184 Texture Address Units and 64 Rasterization Operator Units.

Compare those specifications to the Radeon RX 6800 XT, which comes with a GPU core clock speed of 1825 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also is comprised of 4608 Stream Processors, 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

Performance-wise, the Radeon RX 6800 XT should in theory be just a bit better than the GeForce RTX 2080 overall. (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%) faster with regards to AF than the GeForce RTX 2080. (explain)

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

Pixel Rate

The Radeon RX 6800 XT is much (approximately 141%) more effective at anti-aliasing than the GeForce RTX 2080, and also should be able to handle higher resolutions without losing too much performance. (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: Bandwidth is the maximum amount of data (in units of MB per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high 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 amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum 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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