GeForce GTX 1660 Ti vs Radeon RX 6800 XT

Intro

Compare all of that to the Radeon RX 6800 XT, which makes use of a 7 nm design. AMD has set the core speed at 1825 MHz. The GDDR6 RAM runs at a frequency of 2000 MHz on this particular card. It features 4608 SPUs as well as 288 TAUs and 128 ROPs.

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

As far as performance goes, the Radeon RX 6800 XT should in theory be quite a bit better than the GeForce GTX 1660 Ti overall. (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 will be much (more or less 265%) more effective at texture 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 should be a lot (approximately 224%) more effective at FSAA than the GeForce GTX 1660 Ti, and also capable of handling higher resolutions better. (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: Memory bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better 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 number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.