GeForce GTX 660 Ti vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which comes with GPU core speed of 2055 MHz, and 8192 MB of GDDR6 memory running at 2190 MHz through a 128-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 26 Watts (17%)

Memory Bandwidth

The Radeon RX 6650 XT should in theory be a lot faster than the GeForce GTX 660 Ti in general. (explain)

Radeon RX 6650 XT		287072 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 143072 (99%)

Texel Rate

The Radeon RX 6650 XT should be much (approximately 157%) faster with regards to AF than the GeForce GTX 660 Ti. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 160560 (157%)

Pixel Rate

The Radeon RX 6650 XT is a lot (approximately 499%) more effective at anti-aliasing than the GeForce GTX 660 Ti, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 109560 (499%)

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 information (measured in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.