Radeon R9 270X vs Radeon RX 6500 XT

Intro

Compare those specs to the Radeon RX 6500 XT, which comes with a GPU core clock speed of 2200 MHz, and 4096 MB of GDDR6 memory running at 2250 MHz through a 64-bit bus. It also is comprised of 1024 Stream Processors, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon R9 270X		180 Watts
	Difference: 73 Watts (68%)

Memory Bandwidth

The Radeon R9 270X, in theory, should be a lot faster than the Radeon RX 6500 XT overall. (explain)

Radeon R9 270X		179200 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 31744 (22%)

Texel Rate

The Radeon RX 6500 XT will be a lot (approximately 76%) better at AF than the Radeon R9 270X. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 60800 (76%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 6500 XT is a better choice, by far. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 38400 (120%)

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 information (measured in MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of 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.