Radeon RX 550 vs Radeon RX 580

Intro

Compare that to the Radeon RX 580, which has a core clock speed of 1257 MHz and a GDDR5 memory frequency of 2000 MHz. It also features a 256-bit memory bus, and uses a 14 nm design. It is made up of 2304 SPUs, 144 TAUs, and 32 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 580		13630 points
Radeon RX 550		3507 points
	Difference: 10123 (289%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon RX 580		185 Watts
	Difference: 135 Watts (270%)

Memory Bandwidth

The Radeon RX 580 should theoretically be quite a bit faster than the Radeon RX 550 in general. (explain)

Radeon RX 580		262144 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 147456 (129%)

Texel Rate

The Radeon RX 580 is a lot (more or less 414%) faster with regards to anisotropic filtering than the Radeon RX 550. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 145808 (414%)

Pixel Rate

The Radeon RX 580 will be a lot (approximately 129%) better at AA than the Radeon RX 550, and will be capable of handling higher screen resolutions better. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 22624 (129%)

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

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.