Radeon HD 5870 vs Radeon RX 560

Intro

Compare all that to the Radeon RX 560, which comes with GPU core speed of 1175 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also features 1024 Stream Processors, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon HD 5870		188 Watts
	Difference: 108 Watts (135%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5870 should in theory be much superior to the Radeon RX 560 in general. (explain)

Radeon HD 5870		153600 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 38912 (34%)

Texel Rate

The Radeon RX 560 is a bit (about 11%) more effective at texture filtering than the Radeon HD 5870. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 5870		68000 Mtexels/sec
	Difference: 7200 (11%)

Pixel Rate

The Radeon HD 5870 should be a lot (about 45%) more effective at full screen anti-aliasing than the Radeon RX 560, and also should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 5870		27200 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 8400 (45%)

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 MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.