Radeon HD 5850 vs Radeon RX 560

Intro

Compare all of that to the Radeon RX 560, which makes use of a 14 nm design. AMD has set the core speed at 1175 MHz. The GDDR5 RAM works at a speed of 1750 MHz on this model. It features 1024 SPUs as well as 64 TAUs and 16 Rasterization Operator 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

As far as performance goes, the Radeon HD 5850 should theoretically be a bit better than the Radeon RX 560 in general. (explain)

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

Texel Rate

The Radeon RX 560 should be quite a bit (more or less 44%) better at anisotropic 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 a lot (approximately 23%) faster with regards to FSAA than the Radeon RX 560, and will be capable of handling higher screen resolutions more effectively. (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: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the 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 most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.