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Geforce GTX 1080 Ti vs Radeon RX 6800

Intro

The Geforce GTX 1080 Ti features a GPU core speed of 1480 MHz, and the 11264 MB of GDDR5X memory runs at 1376 MHz through a 352-bit bus. It also is made up of 3584 Stream Processors, 224 TAUs, and 88 Raster Operation Units.

Compare those specifications to the Radeon RX 6800, which comes with a core clock frequency of 1700 MHz and a GDDR6 memory frequency of 2000 MHz. It also features a 256-bit bus, and makes use of a 7 nm design. It is made up of 3840 SPUs, 240 Texture Address Units, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

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

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

Texel Rate

The Radeon RX 6800 should be quite a bit (about 23%) more effective at AF than the Geforce GTX 1080 Ti. (explain)

Radeon RX 6800 408000 Mtexels/sec
Geforce GTX 1080 Ti 331520 Mtexels/sec
Difference: 76480 (23%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6800 is the winner, and very much so. (explain)

Radeon RX 6800 163200 Mpixels/sec
Geforce GTX 1080 Ti 130240 Mpixels/sec
Difference: 32960 (25%)

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

Display Prices

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Geforce GTX 1080 Ti

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

Display Specifications

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Model Geforce GTX 1080 Ti Radeon RX 6800
Manufacturer nVidia AMD
Year March 2017 November 2020
Code Name GP102 Navi 21
Memory 11264 MB 16384 MB
Core Speed 1480 MHz 1700 MHz
Memory Speed 11008 MHz 4000 GB/s
Power (Max TDP) 250 watts 250 watts
Bandwidth 495616 MB/sec 524288 MB/sec
Texel Rate 331520 Mtexels/sec 408000 Mtexels/sec
Pixel Rate 130240 Mpixels/sec 163200 Mpixels/sec
Unified Shaders 3584 3840
Texture Mapping Units 224 240
Render Output Units 88 96
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 maximum amount of information (counted in MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount 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 speed of the chip. The higher this number, the better the 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 amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Geforce GTX 1080 Ti

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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