Radeon HD 6570 (OEM) 2GB vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which has a GPU core clock 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 SPUs, 64 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
Radeon RX 560		80 Watts
	Difference: 30 Watts (60%)

Memory Bandwidth

The Radeon RX 560, in theory, should perform much faster than the Radeon HD 6570 (OEM) 2GB overall. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 6570 (OEM) 2GB		64000 MB/sec
	Difference: 50688 (79%)

Texel Rate

The Radeon RX 560 will be quite a bit (about 382%) more effective at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 59600 (382%)

Pixel Rate

The Radeon RX 560 should be much (more or less 262%) more effective at AA than the Radeon HD 6570 (OEM) 2GB, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
	Difference: 13600 (262%)

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 information (in units of megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 are applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines 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 fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.