Clock speed filter not numerical

[mausch]

Hi and thanks again for this fantastic website.

On to the issue:
The "clock speed" column seems to be alphabetical not numerical.
So when I enter "4" as a filter I get rows with clock speed "3.4GHz", "2.4 GHz", etc. instead of the expected filter of "at least 4 GHz".

Sorting is also broken because of this. Sorting descending shows "up to 3.5 GHz" as the first row.