E5-2689 @ 3.3 ghz
64 GB ECC 1333mhz DDR3 RAM
vs
32 GB Regular Gaming 1600mhz DDR3 RAM

Fun fact: ECC Registered RAM at same mhz is actually faster than regular non-ecc ram, and faster than ECC Un-Buffered RAM modules.

In this test you can see about 2-6 fps loss to gaming ram, because ECC is at 1333mhz, and gaming ram is at 1600 mhz.

As long as timings are good on ECC RAM and it's in same mhz frequency as regular ram, ECC will win gaming tests.

BUT. ECC RAM runs hot, and that could be a deciding factor for most. ECC RAM is much cheaper.

ECC RAM is usually the fastest for gaming if comparing 1600 mhz to another non-ecc/ecc unbuffered counterpart. If you overclock regular ram above 1600 mhz (with same timings as ECC RAM), then you will have a winner using regular RAM [for gaming purposes]

ECC provides error correction for data sensitive material, and overall is much stable than regular ram. Where your computer will bluescreen using regular ram, ECC ram is likely to correct the error. That is of course if it's not CPU/hardware related issue.

Another great info on this:
[ Ссылка ]

свернуть