Radeon HD 5850 vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which comes with a core clock frequency of 1175 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 128-bit bus, and makes use of a 14 nm design. It features 1024 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon HD 5850		151 Watts
	Difference: 71 Watts (89%)

Memory Bandwidth

Theoretically, the Radeon HD 5850 should be a little bit faster than the Radeon RX 560 overall. (explain)

Radeon HD 5850		128000 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 13312 (12%)

Texel Rate

The Radeon RX 560 is much (more or less 44%) better at texture filtering than the Radeon HD 5850. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 5850		52200 Mtexels/sec
	Difference: 23000 (44%)

Pixel Rate

The Radeon HD 5850 will be quite a bit (about 23%) better at full screen anti-aliasing than the Radeon RX 560, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 5850		23200 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 4400 (23%)

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 data (measured in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 applied in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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 of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.