Radeon RX 5500 vs Radeon RX 6650 XT

Intro

Compare all that to the Radeon RX 6650 XT, which has core clock speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs along with 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 26 Watts (17%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6650 XT will be 25% faster than the Radeon RX 5500 overall, due to its higher bandwidth. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon RX 5500		229376 MB/sec
	Difference: 57696 (25%)

Texel Rate

The Radeon RX 6650 XT should be much (approximately 79%) more effective at AF than the Radeon RX 5500. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon RX 5500		146960 Mtexels/sec
	Difference: 116080 (79%)

Pixel Rate

The Radeon RX 6650 XT will be a lot (about 146%) more effective at anti-aliasing than the Radeon RX 5500, and will be capable of handling higher resolutions while still performing well. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon RX 5500		53440 Mpixels/sec
	Difference: 78080 (146%)

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 (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.