GeForce GTX 660 vs Radeon RX 6500 XT

Intro

Compare all that to the Radeon RX 6500 XT, which uses a 6 nm design. AMD has clocked the core speed at 2200 MHz. The GDDR6 memory works at a speed of 2250 MHz on this particular card. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
GeForce GTX 660		140 Watts
	Difference: 33 Watts (31%)

Memory Bandwidth

The Radeon RX 6500 XT, in theory, should perform a small bit faster than the GeForce GTX 660 overall. (explain)

Radeon RX 6500 XT		147456 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 3264 (2%)

Texel Rate

The Radeon RX 6500 XT should be much (about 80%) faster with regards to texture filtering than the GeForce GTX 660. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 62400 (80%)

Pixel Rate

The Radeon RX 6500 XT is much (about 199%) better at AA than the GeForce GTX 660, and also should be able to handle higher resolutions more effectively. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 46880 (199%)

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 maximum amount of data (measured in MB per second) that can be moved past the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.