Radeon R9 270 vs Radeon RX 5500

Intro

Compare those specs to the Radeon RX 5500, which comes with GPU clock speed of 1670 MHz, and 4096 MB of GDDR6 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 1408 Stream Processors, 88 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the Radeon RX 5500 should theoretically be quite a bit superior to the Radeon R9 270 in general. (explain)

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

Texel Rate

The Radeon RX 5500 will be much (more or less 104%) more effective at anisotropic filtering than the Radeon R9 270. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 74960 (104%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 5500 is the winner, by a large margin. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 24640 (86%)

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 (counted in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the 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 that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.