Radeon HD 6450 (OEM) vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which features a GPU core clock speed of 1175 MHz, and 4096 MB of GDDR5 memory running at 1750 MHz through a 128-bit bus. It also is made up 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 6450 (OEM)		31 Watts
Radeon RX 560		80 Watts
	Difference: 49 Watts (158%)

Memory Bandwidth

As far as performance goes, the Radeon RX 560 should in theory be quite a bit better than the Radeon HD 6450 (OEM) in general. (explain)

Radeon RX 560		114688 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 101888 (796%)

Texel Rate

The Radeon RX 560 should be much (about 1404%) better at texture filtering than the Radeon HD 6450 (OEM). (explain)

Radeon RX 560		75200 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 70200 (1404%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 560 is the winner, by a large margin. (explain)

Radeon RX 560		18800 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 16300 (652%)

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 maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 applied per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.