Radeon HD 5570 vs Radeon RX 580

Intro

Compare that to the Radeon RX 580, which features a GPU core clock speed of 1257 MHz, and 8192 MB of GDDR5 memory running at 2000 MHz through a 256-bit bus. It also features 2304 SPUs, 144 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon RX 580		185 Watts
	Difference: 142 Watts (330%)

Memory Bandwidth

As far as performance goes, the Radeon RX 580 should theoretically be quite a bit better than the Radeon HD 5570 in general. (explain)

Radeon RX 580		262144 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 233344 (810%)

Texel Rate

The Radeon RX 580 will be quite a bit (about 1292%) better at anisotropic filtering than the Radeon HD 5570. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 168008 (1292%)

Pixel Rate

The Radeon RX 580 will be a lot (more or less 674%) faster with regards to anti-aliasing than the Radeon HD 5570, and also will be able to handle higher resolutions better. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 35024 (674%)

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 information (measured in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.