* FDC is 50% faster
* Disc formats with 50% more sectors can be used
* Sound is can be better, since the PSG runs more quickquickly
* Games run more fluid
== Disadvantages ==
* The horizontal timing of the CRTC is affected. In order to get a stable image, you need to program register 0 at 95 (96 characters line) and Register 2 at 61 (centering for 40 characters default)
* Pixels pitch is 66.7% of their original pitch.Theses pictures show this fact (320×200 mode 1 pixels with black border)
<gallery>
Image:12062011055.JPG|Original CPC @16Mhz
Image:12062011054.JPG|Overclocked CPC @24Mhz
</gallery>
* Not every hardware expansion is able to work with the 6 MHz bus speed
* FDC can't read old disc formats any longer
* There is a 6 MHz version of FutureOS
== Advanced testing Measurement of speed ==* Only horizontal timing of the CRTC is affected. In order to get a stable image, you need to program register 0 at 95 (96 characters line) and Register 2 at 61 (centering for 40 characters default)* Pixels pitch is 66.7% of their original pitch.Theses pictures show this fact (320×200 mode 1 pixels with black border)<gallery>Image:12062011055.JPG|Original CPC @16MhzImage:12062011054.JPG|Overclocked CPC @24Mhz</gallery>
* This speed improvement is 16.66667%.This has been tested with this simple program :