Is there anything better than having to use 20+ price compare sites?

when im using all sites that are there i have 20+ tabs open and i have to manually search in each of them.
some sites browse through other sites'results which reduces my opened sites from 30+ to 20+

but this is VERY TEDIOUS.There are also 20+ radeon models Im checking.Ive also found out that the prices are different in each country and each country has their own ANOTHER 20+ price comprison sites.

SO IVE SPENT 10+ DAYS browsing through all these sites to find the best parts.I only have to do gpu and psu now.

Can I improve anything?Ive just realized that by this time I would have already got enough to pay for most of my rig.And i havent finished searching yet...

So whats the fastest way to find CHEAPEST price for RADEON?