GeForce GTX 660 vs Radeon RX 5600 XT

Intro

Compare those specifications to the Radeon RX 5600 XT, which features a clock speed of 1375 MHz and a GDDR6 memory frequency of 1500 MHz. It also uses a 192-bit bus, and makes use of a 7 nm design. It is made up of 2304 SPUs, 144 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
Radeon RX 5600 XT		160 Watts
	Difference: 20 Watts (14%)

Memory Bandwidth

Performance-wise, the Radeon RX 5600 XT should in theory be much superior to the GeForce GTX 660 overall. (explain)

Radeon RX 5600 XT		344064 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 199872 (139%)

Texel Rate

The Radeon RX 5600 XT will be a lot (more or less 153%) faster with regards to anisotropic filtering than the GeForce GTX 660. (explain)

Radeon RX 5600 XT		198000 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 119600 (153%)

Pixel Rate

The Radeon RX 5600 XT is quite a bit (more or less 274%) faster with regards to FSAA than the GeForce GTX 660, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 5600 XT		88000 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 64480 (274%)

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 information (in units of MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 processed in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the video card will be at 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 the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.