I've heard of a number of people getting bottlenecked with that CPU, so my answer would be yes considering the Titan is the fastest single GPU in the world.
Upgrade to a 3570k, or if you have the means, the 3930k.
Thanks a lot for your answers, thing is my CPU is not a K version and 3.7 GHZ is as high as it will go sadly... will there be a noticeably large bottleneck or a very small one? Thanks a lot!!