GeForce GTX 1660 Ti vs Radeon RX 580

Intro

Compare that to the Radeon RX 580, which features a clock frequency of 1257 MHz and a GDDR5 memory frequency of 2000 MHz. It also uses a 256-bit bus, and makes use of a 14 nm design. It features 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

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

In theory, the GeForce GTX 1660 Ti will be 13% quicker than the Radeon RX 580 overall, due to its greater bandwidth. (explain)

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

Texel Rate

The Radeon RX 580 should be much (approximately 26%) faster with regards to AF 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, by far. (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: Bandwidth is the max amount of data (counted in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant 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 maximum fill rate.