Radeon RX 5700 XT vs Radeon RX 6650 XT

Intro

Compare those specifications to the Radeon RX 6650 XT, which features GPU core speed of 2055 MHz, and 8192 MB of GDDR6 RAM set to run at 2190 MHz through a 128-bit bus. It also is comprised of 2048 Stream Processors, 128 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 49 Watts (28%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5700 XT should be 60% quicker than the Radeon RX 6650 XT in general, due to its higher bandwidth. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon RX 6650 XT		287072 MB/sec
	Difference: 171680 (60%)

Texel Rate

The Radeon RX 6650 XT will be a small bit (more or less 2%) better at anisotropic filtering than the Radeon RX 5700 XT. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon RX 5700 XT		256800 Mtexels/sec
	Difference: 6240 (2%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6650 XT is the winner, and very much so. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon RX 5700 XT		102720 Mpixels/sec
	Difference: 28800 (28%)

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 megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour 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 fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.