UE 4.7.1 Out of video memory..... WITH INTEL I5

the specs of my laptop are this (i think) :
GPU:Gforce GT 555m
CPU:Intel(R) Core™ i7-2670QM CPU @ 2.20GHz
Memory: 8.00 GB RAM (7.95 usable)

Is this enough to run it cause i am having the same problem.