Is it necessary to overclock to address a bottleneck?
Is it necessary to overclock to address a bottleneck?
The CPU remains stable and maintains a temperature difference of about 6°C between the hottest and coldest cores.
Some folks thought it was pointless to keep detailed batch records once Ivy-Bridge became a full-fledged tool. Honestly, Intel really missed the mark after Ivy-Bridge. The minor improvements in IPC from one generation to the next over the past eight years are negligible compared to the massive jump from 775 to 1156 to 1155. With just four platforms and eight CPU models, they're only now achieving solid 5.0GHz performance that people managed to get eight years ago—by their own effort.
_CharliePlayz_
06-23-2018, 10:08 PM #11I've already recorded the CPU at 5.0GHz running at 1.42v, then lowered it to 4.9GHz at 1.328v after six years of continuous use. After that, the fan bearings failed on the nzxt Kraken X61 (yes, those AIO fans really wear out!), following a six-year, 24/7/364 usage period. I ended up purchasing a brand new Cryorig R1 Ultimate for $40, open box, which was noticeably noisier than the AIO. Consequently, I reduced the operating frequency to 4.6GHz at 1.19v.
The CPU remains stable and maintains a temperature difference of about 6°C between the hottest and coldest cores.
Some folks thought it was pointless to keep detailed batch records once Ivy-Bridge became a full-fledged tool. Honestly, Intel really missed the mark after Ivy-Bridge. The minor improvements in IPC from one generation to the next over the past eight years are negligible compared to the massive jump from 775 to 1156 to 1155. With just four platforms and eight CPU models, they're only now achieving solid 5.0GHz performance that people managed to get eight years ago—by their own effort.
. I had no problems running vcore at around 1.4v for 5+ years with i7-870 or i7-875k, there is no performance loss even for 24/7 use.One thing iam testing now is higher ram speed and nb frequency, usually i have kept vtt voltage below 1.25v since 1.21v is max intel recommends for lynnfield. I can get upto 2500mhz / 205 blck with decent timings on the ram 11-11-11-30, but this needs about 1.325v vtt voltage, im not sure will this kill the memory controller inside the cpu in the long run.
Delidding will drop about 10 celsius on all cores for x3470 , i7-870 etc.
I actually need around 1.42v to reach 4.2ghz on x3470 but thes are older generation cpu. I had no problems running vcore at around 1.4v for 5+ years with i7-870 or i7-875k, there is no performance loss even for 24/7 use.
One thing iam testing now is higher ram speed and nb frequency, usually i have kept vtt voltage below 1.25v since 1.21v is max intel recommends for lynnfield. I can get upto 2500mhz / 205 blck with decent timings on the ram 11-11-11-30, but this needs about 1.325v vtt voltage, im not sure will this kill the memory controller inside the cpu in the long run.
Delidding will drop about 10 celsius on all cores for x3470 , i7-870 etc.
Marcustheduke
06-25-2018, 09:46 PM #13Hah, I was really treated by Ivy-Bridge, didn't like the whole 771/775 BCLK OC stuff—it was really annoying, especially compared to the early OC which used motherboard jumpers. I still had a Genuine Pii 350 OC going up to 400MHz somewhere.
My stock 133 core frequency is 225 Blck, and the uncore runs at 3.75ghz. The memory is reaching its limit at 2000mhz.
What benchmark are you using? Maybe we could compare it? I hope this helps bring my score closer to your previous generation processor. 😀
I recently purchased an x58 motherboard (Westmere) and an xeon cpu x5675, for a combined total of 60. I have already overclocked from 3.06 ghz to 4.25ghz on all cores using just 1.30v vcore. This is the same generation as the Lynnfield, but it appears to handle overclocking much better. It's a 6 core, 12 thread cpu.
My stock 133 core frequency is 225 Blck, and the uncore runs at 3.75ghz. The memory is reaching its limit at 2000mhz.
What benchmark are you using? Maybe we could compare it? I hope this helps bring my score closer to your previous generation processor. 😀