Just Cause 2
Just Cause 2 is one of the older titles in our suite and uses DX10 visuals. It's no longer cutting edge, but it's still a lot of fun and can be used to cross-reference older reviews.
The question is really one of how much performance you want. Be prepared to drop 10 per cent and you can save £130 by opting for a pre-overclocked GTX 780. Drop 20 per cent - which still enables super-smooth gameplay at 2,560x1,440 - and the £200 cheaper Radeon R9 290 is a very good bet.