Radeon RX 590 vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which has GPU clock speed of 2055 MHz, and 8192 MB of GDDR6 RAM running at 2190 MHz through a 128-bit bus. It also is made up 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 590		175 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 1 Watts (1%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6650 XT should in theory be a little bit better than the Radeon RX 590 overall. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 24928 (10%)

Texel Rate

The Radeon RX 6650 XT is quite a bit (more or less 24%) more effective at AF than the Radeon RX 590. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon RX 590		211536 Mtexels/sec
	Difference: 51504 (24%)

Pixel Rate

The Radeon RX 6650 XT will be quite a bit (about 180%) better at anti-aliasing than the Radeon RX 590, and also capable of handling higher resolutions better. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon RX 590		47008 Mpixels/sec
	Difference: 84512 (180%)

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 largest amount of data (counted in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card 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 one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.