Radeon R9 270X vs Radeon RX 6750 XT

Intro

Compare those specifications to the Radeon RX 6750 XT, which features a core clock speed of 2150 MHz and a GDDR6 memory frequency of 2250 MHz. It also uses a 192-bit memory bus, and makes use of a 7 nm design. It is made up of 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 270X		180 Watts
Radeon RX 6750 XT		250 Watts
	Difference: 70 Watts (39%)

Memory Bandwidth

In theory, the Radeon RX 6750 XT is 147% quicker than the Radeon R9 270X overall, due to its greater data rate. (explain)

Radeon RX 6750 XT		442368 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 263168 (147%)

Texel Rate

The Radeon RX 6750 XT will be quite a bit (more or less 330%) better at AF than the Radeon R9 270X. (explain)

Radeon RX 6750 XT		344000 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 264000 (330%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6750 XT is a better choice, by a large margin. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 105600 (330%)

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 (counted in megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 can be applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.