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Geforce GTX 1080 Ti vs Radeon RX 6800 XT

Intro

The Geforce GTX 1080 Ti makes use of a 16 nm design. nVidia has set the core frequency at 1480 MHz. The GDDR5X RAM works at a frequency of 1376 MHz on this model. It features 3584 SPUs as well as 224 TAUs and 88 Rasterization Operator Units.

Compare that to the Radeon RX 6800 XT, which comes with a GPU core clock speed of 1825 MHz, and 16384 MB of GDDR6 RAM set to run at 2000 MHz through a 256-bit bus. It also features 4608 Stream Processors, 288 Texture Address Units, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 1080 Ti 250 Watts
Radeon RX 6800 XT 300 Watts
Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 XT should perform a bit faster than the Geforce GTX 1080 Ti overall. (explain)

Radeon RX 6800 XT 524288 MB/sec
Geforce GTX 1080 Ti 495616 MB/sec
Difference: 28672 (6%)

Texel Rate

The Radeon RX 6800 XT should be a lot (approximately 59%) better at anisotropic filtering than the Geforce GTX 1080 Ti. (explain)

Radeon RX 6800 XT 525600 Mtexels/sec
Geforce GTX 1080 Ti 331520 Mtexels/sec
Difference: 194080 (59%)

Pixel Rate

The Radeon RX 6800 XT will be a lot (approximately 79%) better at FSAA than the Geforce GTX 1080 Ti, and able to handle higher screen resolutions more effectively. (explain)

Radeon RX 6800 XT 233600 Mpixels/sec
Geforce GTX 1080 Ti 130240 Mpixels/sec
Difference: 103360 (79%)

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 GTX 1080 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 GTX 1080 Ti Radeon RX 6800 XT
Manufacturer nVidia AMD
Year March 2017 November 2020
Code Name GP102 Navi 21
Memory 11264 MB 16384 MB
Core Speed 1480 MHz 1825 MHz
Memory Speed 11008 MHz 4000 GB/s
Power (Max TDP) 250 watts 300 watts
Bandwidth 495616 MB/sec 524288 MB/sec
Texel Rate 331520 Mtexels/sec 525600 Mtexels/sec
Pixel Rate 130240 Mpixels/sec 233600 Mpixels/sec
Unified Shaders 3584 4608
Texture Mapping Units 224 288
Render Output Units 88 128
Bus Type GDDR5X GDDR6
Bus Width 352-bit 256-bit
Fab Process 16 nm 7 nm
Transistors 12000 million 26800 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Geforce GTX 1080 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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