Radeon RX 470 4GB vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which makes use of a 14 nm design. AMD has clocked the core frequency at 1100 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this particular model. It features 512 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 70 Watts (140%)

Memory Bandwidth

The Radeon RX 470 4GB should in theory perform a lot faster than the Radeon RX 550 in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 96512 (84%)

Texel Rate

The Radeon RX 470 4GB should be much (approximately 237%) more effective at texture filtering than the Radeon RX 550. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 83328 (237%)

Pixel Rate

The Radeon RX 470 4GB will be quite a bit (more or less 68%) better at FSAA than the Radeon RX 550, and will be capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 12032 (68%)

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 megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.