Best memory out of these two

Fat Tony

Honorable
Mar 15, 2014
67
0
10,630
Hi,
I placed two orders for DDR3 RAM on Amazon, as both were cheap but out of stock.
As luck would have it, both have now shipped on the same day! Which one is better to keep (they we both around the £71-73 mark, so price is not relevant:

Ballistix Tactical 16GB Kit (8GBx2) DDR3 1866 MT/s (PC3-14900) UDIMM 240-Pin Memory

OR

XPG by ADATA V1 DDR3 1600MHz (PC3 12800) 16GB (8GBx2) Memory

It is going into a M-ITX build with a CoolerMaster Hyper 212 cooler ... will I have any height issues with either?

Thanks