Radeon RX 5700 XT vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which comes with clock speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 RAM. It features 2048 SPUs along with 128 Texture Address Units and 64 ROPs.

Display Graphs

Hide Graphs

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

The Radeon RX 5700 XT, in theory, should perform quite a bit faster than the Radeon RX 6650 XT overall. (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 should be a bit (approximately 2%) more effective at AF 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

The Radeon RX 6650 XT is a lot (about 28%) more effective at full screen anti-aliasing than the Radeon RX 5700 XT, and should be capable of handling higher resolutions more effectively. (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: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, 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 graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.