To be honest with you, it doesn't make any sense launching 2 similar keywords with similar match type and same bids in different ad groups. That's because at one time, only one keyword will accrue data depending upon which wins the ad auction as per the ad rank formula. Remember it's not only about the max. bid, but the Quality Score factor as well which comes into picture.
It's actually duplication which you are talking about here and is certainly not recommended. You should have unique keywords with the match types which are working in your account and rest should be paused.
In the case keyword with highest quality score will win the ad auction based on Ad Rank Formula. But it is not recommended to use same keyword, same bid, same match type, same targeting in any account/campaign/adgroup.
Re: Same Keyword
I'm with Pankaj on this one. Which ad to you want to show? Delete the other keyword. If you want to split test the keyword with different ad copy, write another ad in the same ad group.
Best of Luck!