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 clocked the core frequency at 1175 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this particular model. It features 1024 SPUs along with 64 TAUs and 16 ROPs.

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

Performance-wise, the Radeon HD 5850 should theoretically be just a bit superior to 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 will be a lot (approximately 44%) faster with regards to AF than the Radeon HD 5850. (explain)

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

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5850 is superior to the Radeon RX 560, by far. (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 maximum amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.