Radeon RX 550 vs Radeon RX 580

Intro

Compare that to the Radeon RX 580, which comes with a clock frequency of 1257 MHz and a GDDR5 memory frequency of 2000 MHz. It also uses a 256-bit bus, and makes use of a 14 nm design. It is comprised of 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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 a lot 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 will be a lot (approximately 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

If running with high levels of AA is important to you, then the Radeon RX 580 is the winner, by far. (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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock 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 card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.