GeForce GTX 1660 Ti vs Radeon RX 6900 XT

Intro

Compare that to the Radeon RX 6900 XT, which comes with core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 5120 SPUs along with 320 TAUs and 128 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 180 Watts (150%)

Memory Bandwidth

In theory, the Radeon RX 6900 XT should perform a lot faster than the GeForce GTX 1660 Ti in general. (explain)

Radeon RX 6900 XT		524288 MB/sec
GeForce GTX 1660 Ti		294912 MB/sec
	Difference: 229376 (78%)

Texel Rate

The Radeon RX 6900 XT will be much (about 306%) more effective at anisotropic filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 440000 (306%)

Pixel Rate

The Radeon RX 6900 XT will be a lot (approximately 224%) better at full screen anti-aliasing than the GeForce GTX 1660 Ti, and also capable of handling higher resolutions while still performing well. (explain)

Radeon RX 6900 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 largest amount of data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour 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 lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.