GeForce GTX 1660 Ti vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which has a GPU core clock speed of 2055 MHz, and 8192 MB of GDDR6 RAM set to run at 2190 MHz through a 128-bit bus. It also is comprised of 2048 SPUs, 128 TAUs, and 64 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 6650 XT		176 Watts
	Difference: 56 Watts (47%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti should perform a little bit faster than the Radeon RX 6650 XT in general. (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 will be quite a bit (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

The Radeon RX 6650 XT is much (more or less 83%) faster with regards to FSAA than the GeForce GTX 1660 Ti, and able to handle higher resolutions without slowing down too much. (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: Bandwidth is the max amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core 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 bandwidth is, the lower the potential to get to the maximum fill rate.