GeForce GTX 660 vs Radeon RX 6500 XT

Intro

Compare all that to the Radeon RX 6500 XT, which features core clock speeds of 2200 MHz on the GPU, and 2250 MHz on the 4096 MB of GDDR6 memory. 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 should theoretically be a little 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 (approximately 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

If running with a high resolution is important to you, then the Radeon RX 6500 XT is the winner, by a large margin. (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 max amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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