GeForce GTX 580 3GB vs Radeon RX 5500 XT

Intro

Compare those specs to the Radeon RX 5500 XT, which comes with core clock speeds of 1717 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 RAM. It features 1408 SPUs along with 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 114 Watts (88%)

Memory Bandwidth

In theory, the Radeon RX 5500 XT should be 19% quicker than the GeForce GTX 580 3GB overall, due to its higher bandwidth. (explain)

Radeon RX 5500 XT		229376 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 36992 (19%)

Texel Rate

The Radeon RX 5500 XT will be quite a bit (more or less 206%) better at AF than the GeForce GTX 580 3GB. (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 101688 (206%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 5500 XT is a better choice, and very much so. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
GeForce GTX 580 3GB		37056 Mpixels/sec
	Difference: 17888 (48%)

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 largest amount of information (in units of MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per 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 video 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 number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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 - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.