GeForce GTX 1660 Ti vs Radeon RX 580

Intro

Compare those specs to the Radeon RX 580, which features GPU core speed of 1257 MHz, and 8192 MB of GDDR5 RAM set to run at 2000 MHz through a 256-bit bus. It also features 2304 Stream Processors, 144 Texture Address Units, and 32 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 580		185 Watts
	Difference: 65 Watts (54%)

Memory Bandwidth

The GeForce GTX 1660 Ti should in theory perform a little bit faster than the Radeon RX 580 in general. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon RX 580		262144 MB/sec
	Difference: 32768 (13%)

Texel Rate

The Radeon RX 580 will be much (approximately 26%) more effective at anisotropic filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX 580		181008 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 37008 (26%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 1660 Ti is superior to the Radeon RX 580, and very much so. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 31776 (79%)

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 maximum amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.