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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 clocked the core speed at 1480 MHz. The GDDR5X memory runs at a speed of 1376 MHz on this particular model. It features 3584 SPUs along with 224 Texture Address Units and 88 Rasterization Operator Units.

Compare all of that to the Radeon RX 6800 XT, which uses a 7 nm design. AMD has clocked the core speed at 1825 MHz. The GDDR6 RAM is set to run at a frequency of 2000 MHz on this particular model. It features 4608 SPUs along with 288 Texture Address Units and 128 Rasterization Operator Units.

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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 is 6% quicker than the Geforce GTX 1080 Ti in general, due to its greater bandwidth. (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 quite a bit (more or less 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 should be much (more or less 79%) better at AA than the Geforce GTX 1080 Ti, and also capable of handling higher resolutions while still performing well. (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 max amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max 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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