Originally Posted by jdc122
Hi guys, bit of a dilemma here. I have the option to get a 4.7ghz 5960x at 1.328v for a pretty good price (£680) which is really tempting. However, i was originally planning on buying a silicon lottery 6900k that does 4.4ghz but considering the price difference (6900k is £930, £250 more expensive) im not sure.
i feel like my water loop could take the 5960x further seeng as i have 2 360's and 2 240's, and the price difference could get me a new ssd...
For the rest of my rig im running;
X99 soc champion
TridentZ 32gb 4x8 3200cl14
1200w slient pro gold
I originally was thinking Broadwell-E was the way to go. But after getting a 4.4ghz binned 6800K and planning to sell my 5960X; figuring the 6800K with 4.4ghz was as fast in multi-threaded workloads as my 5960X was at stock 3.5ghz (6800K 4.4ghz = ~1,361 points in cinebench 15. 3.5ghz 5960X = 1,350; ~1,400 if i raise cache; so pretty similar) but i assumed the 6800K (and BW-E in general) would have higher SINGLE core performance which would make it more like a compromise between a 6700K and 5960X, giving "best of both worlds" (i.e. fastest single core perf possible for gaming, but still 6 cores and just under 1,400 cinebench MULTI core scores)
Unfortunately, i found that NO amount of voltage can safely hit 4.5ghz even though i can hit 4.4ghz at ~1.355v (even 1.515v isn't enough!) and at 4.4ghz i only get 183-184 points in single core cinebench, which is the same as my 5960X at 4.6ghz gets. So the main advantage i figured the 6800K had over my 5960X is gone.
Now, the 6900K is OBVIOUSLY different, but not that much. You are simply getting a nealry identical multi threaded performance (if your 5960X hits 4.7ghz i imagine the 5960X might actually score HIGHER in multi thread though) and nearly identical single threaded performance as well.
Plus, on Broadwell-E your IMC is significantly worse in general. Most people have trouble hitting more than 3000mhz on their RAM, and can't get over 3.7-3.8ghz on their cache/uncore; compared to 5960X where you can get 3600mhz no problem usually on RAM, and my 5960X gets 4.3ghz cache/uncore with ease on a Rampage V Extreme and the new Rampage V Edition 10 as well.
TL:DR = They're literally basically the exact same. A 4.7ghz 5960X will likely slightly outspeed a 4.4ghz 6900K; i'd go for 5960X. I'm likely sending my 6800K back and just keeping my 4.6ghz 5960X.Edited by DarkIdeals - 7/8/16 at 11:18pm