GeForce GTX 1660 Ti vs Radeon RX 6800 XT

Intro

Compare those specifications to the Radeon RX 6800 XT, which features GPU core speed of 1825 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also is comprised of 4608 SPUs, 288 Texture Address Units, and 128 Raster Operation Units.

Display Graphs

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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 should be much faster than the GeForce GTX 1660 Ti in general. (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%) more effective at AF 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 should be much (about 224%) better at full screen anti-aliasing than the GeForce GTX 1660 Ti, and able to handle higher resolutions while still performing well. (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

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. 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 lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.