back testing computers?

 
We have been back testing. What computer system is the best to speed up our back testing? Currently we have months of back testing to do. What do we need computer wise to speed the process?
 
Are you using MT4 or MT5? MT4's strategy tester is single threaded thus multiple cores won#t help here. Probably only faster cores/faster CPU. On the other side MT5 is multi threaded, so multiple strategy testers/ optimization runs can be perfomed in paralell (of course depending on the number of cores/threads of your CPU). MT5 has also the possibility to make use of the MQL5 Cloud Network.
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