hi i am planning to buy a new prebuilt p.c soon and was looking at these two. I will mostly use it for gaming and want to be able to play games on high at a good fps so i am not sure which one is a better deal since i am new to this. if you have any other suggestions for other P.C's that would be a better deal than just tell me in the reply's
The i3 should be better for gaming than the FX-4100. The Bulldozer architecture is optimized for multi-threaded performance, which the 4100 cant deliver on only being a quad core.
But saying that, they will game similarly given that they will both be using the same GPU. The GPU in gaming situations is always the bottleneck (if it isnt the game itself).
Its a Micro-ATX motherboard, so crossifre/SLI is out of the question, and you wont be able to overclock it (or use Ivy Bridge CPU's without some BIOS updates. So expandability wise isnt very good, but thats a common disadvantage to pre builts.
If your are investing this much money (~$1000 from what I can tell), you will be better off building your own machine.