Radeon R9 270X vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which has a core clock speed of 1670 MHz and a GDDR6 memory frequency of 1750 MHz. It also uses a 128-bit memory bus, and uses a 7 nm design. It is comprised of 1408 SPUs, 88 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon R9 270X		180 Watts
	Difference: 30 Watts (20%)

Memory Bandwidth

The Radeon RX 5500 should in theory perform quite a bit faster than the Radeon R9 270X in general. (explain)

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

Texel Rate

The Radeon RX 5500 will be a lot (approximately 84%) faster with regards to anisotropic filtering than the Radeon R9 270X. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 66960 (84%)

Pixel Rate

The Radeon RX 5500 is a lot (more or less 67%) faster with regards to full screen anti-aliasing than the Radeon R9 270X, and will be able to handle higher resolutions while still performing well. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 21440 (67%)

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 largest amount of information (in units of MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.