Radeon RX 6600 XT vs Radeon RX 6650 XT

Intro

Compare all of that to the Radeon RX 6650 XT, which comes with core speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs as well as 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 16 Watts (10%)

Memory Bandwidth

The Radeon RX 6650 XT, in theory, should be a bit faster than the Radeon RX 6600 XT in general. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 24928 (10%)

Texel Rate

The Radeon RX 6650 XT should be a little bit (approximately 4%) better at texture filtering than the Radeon RX 6600 XT. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 11136 (4%)

Pixel Rate

The Radeon RX 6650 XT is a little bit (approximately 4%) better at full screen anti-aliasing than the Radeon RX 6600 XT, and should be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon RX 6600 XT		125952 Mpixels/sec
	Difference: 5568 (4%)

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 information (measured in MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number 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 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 most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 get to the max fill rate.