Radeon RX 5700 XT vs Radeon RX 6650 XT

Intro

Compare all of that to the Radeon RX 6650 XT, which has a clock frequency of 2055 MHz and a GDDR6 memory frequency of 2190 MHz. It also uses a 128-bit bus, and makes use of a 7 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 64 Raster Operation Units.

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

Theoretically speaking, the Radeon RX 5700 XT will be 60% quicker than the Radeon RX 6650 XT in general, because of its greater data rate. (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 bit (approximately 2%) better 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 should be a lot (about 28%) faster with regards to AA than the Radeon RX 5700 XT, and also will 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: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 figure is worked out by multiplying the total texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.