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GeForce RTX 2080 vs Radeon RX 6800

Intro

The GeForce RTX 2080 features a GPU clock speed of 1515 MHz, and the 8192 MB of GDDR6 RAM is set to run at 1750 MHz through a 256-bit bus. It also is comprised of 2944 SPUs, 184 Texture Address Units, and 64 ROPs.

Compare those specs to the Radeon RX 6800, which has core clock speeds of 1700 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 3840 SPUs along with 240 Texture Address Units and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 215 Watts
Radeon RX 6800 250 Watts
Difference: 35 Watts (16%)

Memory Bandwidth

Theoretically, the Radeon RX 6800 should perform a bit faster than the GeForce RTX 2080 overall. (explain)

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

Texel Rate

The Radeon RX 6800 should be quite a bit (about 46%) better at texture filtering than the GeForce RTX 2080. (explain)

Radeon RX 6800 408000 Mtexels/sec
GeForce RTX 2080 278760 Mtexels/sec
Difference: 129240 (46%)

Pixel Rate

The Radeon RX 6800 is quite a bit (more or less 68%) better at AA than the GeForce RTX 2080, and should be capable of handling higher screen resolutions better. (explain)

Radeon RX 6800 163200 Mpixels/sec
GeForce RTX 2080 96960 Mpixels/sec
Difference: 66240 (68%)

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

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
Manufacturer nVidia AMD
Year September 2018 November 2020
Code Name TU104-400A-A1 Navi 21
Memory 8192 MB 16384 MB
Core Speed 1515 MHz 1700 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 215 watts 250 watts
Bandwidth 458752 MB/sec 524288 MB/sec
Texel Rate 278760 Mtexels/sec 408000 Mtexels/sec
Pixel Rate 96960 Mpixels/sec 163200 Mpixels/sec
Unified Shaders 2944 3840
Texture Mapping Units 184 240
Render Output Units 64 96
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 largest amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR 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 calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the 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 graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 2080

Amazon.com

Check prices at:

Radeon RX 6800

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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