Radeon R9 270X vs Radeon RX 5500 XT

Intro

Compare that to the Radeon RX 5500 XT, which features a core clock speed of 1717 MHz and a GDDR6 memory speed of 1750 MHz. It also uses a 128-bit bus, and makes use of a 7 nm design. It features 1408 SPUs, 88 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
Radeon R9 270X		180 Watts
	Difference: 50 Watts (38%)

Memory Bandwidth

As far as performance goes, the Radeon RX 5500 XT should theoretically be much superior to the Radeon R9 270X overall. (explain)

Radeon RX 5500 XT		229376 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 50176 (28%)

Texel Rate

The Radeon RX 5500 XT should be much (more or less 89%) more effective at AF than the Radeon R9 270X. (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 71096 (89%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 5500 XT is a better choice, and very much so. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 22944 (72%)

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 information (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.