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GeForce GTX 1660 Ti vs Radeon RX 6800 XT

Intro

The GeForce GTX 1660 Ti has a GPU core clock speed of 1500 MHz, and the 6144 MB of GDDR6 memory is set to run at 1500 MHz through a 192-bit bus. It also is made up of 1536 SPUs, 96 TAUs, and 48 Raster Operation Units.

Compare that to the Radeon RX 6800 XT, which features a core clock frequency of 1825 MHz and a GDDR6 memory frequency of 2000 MHz. It also makes use of a 256-bit bus, and uses a 7 nm design. It features 4608 SPUs, 288 TAUs, and 128 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
Radeon RX 6800 XT 300 Watts
Difference: 180 Watts (150%)

Memory Bandwidth

In theory, the Radeon RX 6800 XT is 78% faster than the GeForce GTX 1660 Ti overall, due to its higher data rate. (explain)

Radeon RX 6800 XT 524288 MB/sec
GeForce GTX 1660 Ti 294912 MB/sec
Difference: 229376 (78%)

Texel Rate

The Radeon RX 6800 XT is a lot (more or less 265%) better at anisotropic filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX 6800 XT 525600 Mtexels/sec
GeForce GTX 1660 Ti 144000 Mtexels/sec
Difference: 381600 (265%)

Pixel Rate

The Radeon RX 6800 XT will be quite a bit (approximately 224%) better at AA than the GeForce GTX 1660 Ti, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6800 XT 233600 Mpixels/sec
GeForce GTX 1660 Ti 72000 Mpixels/sec
Difference: 161600 (224%)

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 1660 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 1660 Ti Radeon RX 6800 XT
Manufacturer nVidia AMD
Year February 2019 November 2020
Code Name TU116-400-A1 Navi 21
Memory 6144 MB 16384 MB
Core Speed 1500 MHz 1825 MHz
Memory Speed 1500 GB/s 2000 GB/s
Power (Max TDP) 120 watts 300 watts
Bandwidth 294912 MB/sec 524288 MB/sec
Texel Rate 144000 Mtexels/sec 525600 Mtexels/sec
Pixel Rate 72000 Mpixels/sec 233600 Mpixels/sec
Unified Shaders 1536 4608
Texture Mapping Units 96 288
Render Output Units 48 128
Bus Type GDDR6 GDDR6
Bus Width 192-bit 256-bit
Fab Process 12 nm 7 nm
Transistors 6600 million 26800 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, 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 amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 1660 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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