Radeon RX 480 vs Radeon RX 550

Intro

Compare those specifications to the Radeon RX 550, which features GPU core speed of 1100 MHz, and 2048 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 512 SPUs, 32 Texture Address Units, and 16 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 480		13349 points
Radeon RX 550		3507 points
	Difference: 9842 (281%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon RX 480		150 Watts
	Difference: 100 Watts (200%)

Memory Bandwidth

In theory, the Radeon RX 480 will be 129% quicker than the Radeon RX 550 in general, due to its higher bandwidth. (explain)

Radeon RX 480		262144 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 147456 (129%)

Texel Rate

The Radeon RX 480 will be quite a bit (about 358%) faster with regards to anisotropic filtering than the Radeon RX 550. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 126080 (358%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 480 is a better choice, and very much so. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 18240 (104%)

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 information (counted in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the card's interface 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 higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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