GeForce GTX 1660 Ti vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which features clock speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs along with 128 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 56 Watts (47%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti should be 3% faster than the Radeon RX 6650 XT overall, due to its greater bandwidth. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon RX 6650 XT		287072 MB/sec
	Difference: 7840 (3%)

Texel Rate

The Radeon RX 6650 XT is a lot (more or less 83%) better at anisotropic filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 119040 (83%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6650 XT is a better choice, and very much so. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
GeForce GTX 1660 Ti		72000 Mpixels/sec
	Difference: 59520 (83%)

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 moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.