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Geforce GTX 1080 Ti vs Radeon RX 6600 XT

Intro

The Geforce GTX 1080 Ti features a clock speed of 1480 MHz and a GDDR5X memory frequency of 1376 MHz. It also makes use of a 352-bit memory bus, and uses a 16 nm design. It features 3584 SPUs, 224 Texture Address Units, and 88 Raster Operation Units.

Compare those specifications to the Radeon RX 6600 XT, which comes with GPU clock speed of 1968 MHz, and 8192 MB of GDDR6 memory running at 2000 MHz through a 128-bit bus. It also is made up of 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT 160 Watts
Geforce GTX 1080 Ti 250 Watts
Difference: 90 Watts (56%)

Memory Bandwidth

The Geforce GTX 1080 Ti should in theory perform quite a bit faster than the Radeon RX 6600 XT overall. (explain)

Geforce GTX 1080 Ti 495616 MB/sec
Radeon RX 6600 XT 262144 MB/sec
Difference: 233472 (89%)

Texel Rate

The Geforce GTX 1080 Ti should be a lot (more or less 32%) better at texture filtering than the Radeon RX 6600 XT. (explain)

Geforce GTX 1080 Ti 331520 Mtexels/sec
Radeon RX 6600 XT 251904 Mtexels/sec
Difference: 79616 (32%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 1080 Ti is a better choice, but only just. (explain)

Geforce GTX 1080 Ti 130240 Mpixels/sec
Radeon RX 6600 XT 125952 Mpixels/sec
Difference: 4288 (3%)

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

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Radeon RX 6600 XT

Amazon.com

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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 6600 XT
Manufacturer nVidia AMD
Year March 2017 August 2021
Code Name GP102 Navi 23 XT
Memory 11264 MB 8192 MB
Core Speed 1480 MHz 1968 MHz
Memory Speed 11008 MHz 4000 GB/s
Power (Max TDP) 250 watts 160 watts
Bandwidth 495616 MB/sec 262144 MB/sec
Texel Rate 331520 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 130240 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 3584 2048
Texture Mapping Units 224 128
Render Output Units 88 64
Bus Type GDDR5X GDDR6
Bus Width 352-bit 128-bit
Fab Process 16 nm 7 nm
Transistors 12000 million 11060 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 over the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of 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

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Geforce GTX 1080 Ti

Amazon.com

Check prices at:

Radeon RX 6600 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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