GeForce GTX 1660 Ti vs Radeon RX 590

Intro

Compare all that to the Radeon RX 590, which uses a 12 nm design. AMD has set the core frequency at 1469 MHz. The GDDR5 memory works at a speed of 2000 MHz on this specific model. It features 2304 SPUs along with 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 590		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1660 Ti will be 13% quicker than the Radeon RX 590 overall, because of its greater bandwidth. (explain)

GeForce GTX 1660 Ti		294912 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 32768 (13%)

Texel Rate

The Radeon RX 590 is quite a bit (more or less 47%) more effective at AF than the GeForce GTX 1660 Ti. (explain)

Radeon RX 590		211536 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 67536 (47%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 1660 Ti is a better choice, and very much so. (explain)

GeForce GTX 1660 Ti		72000 Mpixels/sec
Radeon RX 590		47008 Mpixels/sec
	Difference: 24992 (53%)

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 information (measured in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it must 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 is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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