It does have some problems in that benchmark compared to the Intel quad-cores, but then again there's no comparison against the 750K; considering that the Pentium's multi-threaded performance in many cases is about the same as the Athlons, I kind of doubt it. On the other hand, there are some delays when the processor switches threads, but I'm not sure if that's what's causing the stuttering. I checked if Eurogamer reviewed the 750K, but sadly I couldn't find anything which is a shame considering it's the Pentiums closest competitor. There is however one BF4 gameplay video of a Pentium paired with a 660 ti running an MP game without any noticeable stuttering:
http://youtu.be/2gzReaFZUIE . Of course, the 750 ti isn't a 660 ti, but some fiddling with the clock speeds may help that a little.
The Pentium also has the advantage of being easily upgradable; while the Athlon X4 is about the fastest chip you're going to get on FM2, the Pentium can be, as already mentioned, upgraded to an i5.
The big concern here is the overclockability of the B85 chipset. While we already know it's multiplier-unlocked, MSI themselves said it's the only overclocking available, and even though the boards do support OC Genie which is an indication that voltage control is enabled, it's in no way a guarantee, and the Pentium really needs a good OC to perform.
