GeForce GTX 1660 Ti vs Radeon RX 580

Intro

Compare all of that to the Radeon RX 580, which uses a 14 nm design. AMD has set the core frequency at 1257 MHz. The GDDR5 RAM is set to run at a speed of 2000 MHz on this card. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce GTX 1660 Ti is 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 is quite a bit (more or less 26%) faster with regards to texture 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 using lots of anti-aliasing 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: Bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core 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 fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.