SiSoft Sandra Benchmarks
We took the processor and overclock it to 4.5GHz on AIR with a bump in voltage to 1.25v. As the memory modules were running at DDR3-2133, we see a slight difference in score against the ASUS Maximus which ran our XMP profile Kingston modules at DDR3-2400.
In Arithmetic Test, the ECS Z97-PK Deluxe seems to underperform by just a few points, scoring 109.54 against the 116.43 of ASUS Maximus VII Ranger.
Likewise the lower differences isn’t that far apart between the ECS Z97 PK Deluxe versus the ASUS.
Again we see that running at DDR3-2400 does have some advantage over DDR3-2133.