Radeon R9 270X vs Radeon RX 6650 XT

Intro

Compare those specifications to the Radeon RX 6650 XT, which has a GPU core clock speed of 2055 MHz, and 8192 MB of GDDR6 memory running at 2190 MHz through a 128-bit bus. It also is comprised 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 6650 XT		176 Watts
Radeon R9 270X		180 Watts
	Difference: 4 Watts (2%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6650 XT should in theory be much better than the Radeon R9 270X overall. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 107872 (60%)

Texel Rate

The Radeon RX 6650 XT should be much (about 229%) better at texture filtering than the Radeon R9 270X. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 183040 (229%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6650 XT is superior to the Radeon R9 270X, by a large margin. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 99520 (311%)

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 transferred across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.