Geforce GTX 680 vs Radeon RX 6500 XT

Intro

Compare all that to the Radeon RX 6500 XT, which comes with GPU core speed of 2200 MHz, and 4096 MB of GDDR6 RAM running at 2250 MHz through a 64-bit bus. It also features 1024 Stream Processors, 64 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Geforce GTX 680		195 Watts
	Difference: 88 Watts (82%)

Memory Bandwidth

Theoretically speaking, the Geforce GTX 680 should be much faster than the Radeon RX 6500 XT overall. (explain)

Geforce GTX 680		192256 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 44800 (30%)

Texel Rate

The Radeon RX 6500 XT will be just a bit (approximately 9%) better at anisotropic filtering than the Geforce GTX 680. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Geforce GTX 680		128768 Mtexels/sec
	Difference: 12032 (9%)

Pixel Rate

The Radeon RX 6500 XT is quite a bit (approximately 119%) better at AA than the Geforce GTX 680, and also capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 38208 (119%)

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 MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.