GeForce GTX 660 Ti vs Radeon RX 6600

Intro

Compare those specs to the Radeon RX 6600, which comes with a clock speed of 1626 MHz and a GDDR6 memory frequency of 1750 MHz. It also makes use of a 128-bit bus, and uses a 7 nm design. It is made up of 1792 SPUs, 112 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600		132 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 18 Watts (14%)

Memory Bandwidth

In theory, the Radeon RX 6600 should be 59% quicker than the GeForce GTX 660 Ti overall, due to its greater bandwidth. (explain)

Radeon RX 6600		229376 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 85376 (59%)

Texel Rate

The Radeon RX 6600 will be a lot (approximately 78%) more effective at anisotropic filtering than the GeForce GTX 660 Ti. (explain)

Radeon RX 6600		182112 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 79632 (78%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6600 is the winner, and very much so. (explain)

Radeon RX 6600		104064 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 82104 (374%)

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 (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that are applied per second. This figure 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could 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 - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.