Radeon HD 6670 (OEM) 1GB vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which comes with a clock frequency of 1175 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 128-bit memory bus, and uses a 14 nm design. It is comprised of 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 6670 (OEM) 1GB		63 Watts
Radeon RX 560		80 Watts
	Difference: 17 Watts (27%)

Memory Bandwidth

As far as performance goes, the Radeon RX 560 should in theory be much better than the Radeon HD 6670 (OEM) 1GB in general. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 6670 (OEM) 1GB		64000 MB/sec
	Difference: 50688 (79%)

Texel Rate

The Radeon RX 560 should be much (approximately 292%) better at AF than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 6670 (OEM) 1GB		19200 Mtexels/sec
	Difference: 56000 (292%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 560 is superior to the Radeon HD 6670 (OEM) 1GB, by a large margin. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 6670 (OEM) 1GB		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 (measured in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, 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 amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its 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 outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.