GeForce GTX 580 3GB 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 memory running at 1750 MHz through a 128-bit bus. It also is comprised of 512 Stream Processors, 32 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 194 Watts (388%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 3GB should perform quite a bit faster than the Radeon RX 550 overall. (explain)

GeForce GTX 580 3GB		192384 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 77696 (68%)

Texel Rate

The GeForce GTX 580 3GB should be a lot (approximately 40%) faster with regards to texture filtering than the Radeon RX 550. (explain)

GeForce GTX 580 3GB		49408 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 14208 (40%)

Pixel Rate

The GeForce GTX 580 3GB should be much (about 111%) more effective at anti-aliasing than the Radeon RX 550, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 19456 (111%)

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 max amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied 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. Pixel rate is calculated by multiplying the number of ROPs by the clock 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 fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.