Radeon HD 6670 (OEM) vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which has core clock speeds of 1175 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 1024 SPUs along with 64 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM)		63 Watts
Radeon RX 560		80 Watts
	Difference: 17 Watts (27%)

Memory Bandwidth

In theory, the Radeon RX 560 is 79% faster than the Radeon HD 6670 (OEM) overall, due to its greater bandwidth. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 6670 (OEM)		64000 MB/sec
	Difference: 50688 (79%)

Texel Rate

The Radeon RX 560 should be much (approximately 292%) faster with regards to AF than the Radeon HD 6670 (OEM). (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 6670 (OEM)		19200 Mtexels/sec
	Difference: 56000 (292%)

Pixel Rate

The Radeon RX 560 will be quite a bit (more or less 194%) faster with regards to full screen anti-aliasing than the Radeon HD 6670 (OEM), and should be capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 6670 (OEM)		6400 Mpixels/sec
	Difference: 12400 (194%)

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 largest amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at 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 card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's 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 also depends on many 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.