@Toritechie

Forget 4,5GHz with a i7 875k with reasonable voltage and water, you be lucky if you can get 4,2GHz stable with reasonable voltage and temperature.

Sure itīs has the Bclk multiplier unlocked but the downside is that it still only have two uncore ratios, x16 and x18, so when one going for a lower Bclk one lose performance compare to Bclk 200 or higher.

For example

Bclk 133 vs 200

Bclk 133, max UnCore ~2400MHz

Bclk 200, max UnCore ~3600MHz

Big different and itīs noticeble in real life applications.


Bclk 160 vs 200

Bclk 160, max UnCore ~2880MHz

Bclk 200, max UnCore ~3600MHz

Still a different and itīs still noticeble in real life applications.


So one still want to the high Bclk so one not lose performace, thatīs the downside, the pros is that it has a better price compare to the i7 870 so therefore itīs a relative good buy but donīt expect any over the hill overclock result with the i7 875k.

If you want 4,5GHz you probably have to go for a socket 1366 i7 and ditch that D-Tek for a EK Supreme LT, it has a good price performance ratio.


I run a i7 875k (Heatkiller cooled) with a MIIIF and done a bit of testing and even though I have the unlock ability I still run Bclk 200 as I did with my old i7 870 because of the lack of uncore ratios.


Hope it can help some, good luck with whatever you choose