Radeon R9 270X vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which features GPU core speed of 2055 MHz, and 8192 MB of GDDR6 RAM running at 2190 MHz through a 128-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 64 Raster Operation Units.

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

Theoretically speaking, the Radeon RX 6650 XT should be 60% faster than the Radeon R9 270X in general, due to its higher data rate. (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 a lot (more or less 229%) better at anisotropic 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

The Radeon RX 6650 XT will be quite a bit (approximately 311%) better at full screen anti-aliasing than the Radeon R9 270X, and will be able to handle higher resolutions without slowing down too much. (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: Bandwidth is the max amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. 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 rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.