OP should go for Zotac gtx 760 amp edition in SLI @(20K*2)=40K.
It is the best option for you regarding your gaming.Regarding microstuttering, GTX 760 SLI has much smoother gameplay & lesser frame latencies as SLI scales better than Xfire... Since AMD has some stuterring issues in crossfire configuration but AMD has already confirmed that their Multi-GPU Stuttering fix driver will be released in 31 st July which will address all the Frame Latency and Stuttering issues...
Even there is one more option left for OP- Op should also opt for a single sapphire HD 7970 TOXIC edition 6 GB card @42K
Huge memory best for upcoming memory demanding games , best VFM from my side....
For 42k I would not touch a 7970.