Here's Tom's comparative review of the AMD FX-4100 and the Intel Core i3 2100 in a more realistic setting:
AMD FX-4100 Vs. Intel Core i3: Exploring Game Performance With Cheap GPUs
There is not much difference in gaming between the two barring a couple of titles. Also, the FX-4100 is not overclocked here, so things might be different in the real world.
Personally, I do not see the Bulldozer as being the failure it is deemed to be. Yes, it is underwhelming but it's not OMG-end-of-the-world-for-AMD bad.
If the FX-4100 would be 1k cheaper (current pricing: INR 6600; theitwares.com), it may be the good buy.
^^^IMHO