GeForce GTX 660 vs Radeon RX 5600 XT

Intro

Compare all that to the Radeon RX 5600 XT, which has GPU clock speed of 1375 MHz, and 6144 MB of GDDR6 memory running at 1500 MHz through a 192-bit bus. It also features 2304 SPUs, 144 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon RX 5600 XT should be 139% quicker than the GeForce GTX 660 overall, due to its greater data rate. (explain)

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

Texel Rate

The Radeon RX 5600 XT should be quite a bit (about 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

If running with a high screen resolution is important to you, then the Radeon RX 5600 XT is superior to the GeForce GTX 660, by a large margin. (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 data (measured in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, 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 could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.