Thursday, June 8th 2017
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Intel Core i7-7740K "Kaby Lake-X" Cracks 7.50 GHz on Liquid Helium
TeamAU with GIGABYTE OC Lab successfully overclocked an Intel Core i7-7740K "Kaby Lake-X" quad-core processor to 7.50 GHz. Only 2 out of its 4 cores were enabled for the feat. A Gigabyte X299 SOC Champion was used for this feat, and liquid helium was used to keep the CPU cool. The overclockers dialed kept the base-clock constant at 100 MHz, while dialing up its multiplier to 75.0x, yielding 7.50 GHz. Its core-voltage was kept at 1.096V.
Source:
Canard PC Validation
44 Comments on Intel Core i7-7740K "Kaby Lake-X" Cracks 7.50 GHz on Liquid Helium
EDIT: Some article said 1.99V I think... need to dig it up, lol! It works when XOC... its just CPUz isn't updated for the latest platform.... and the author doesn't seem to know that either. And seems to think its logical that less than stock voltage gives 75% overclocks.
Also typos in the 5 sentences... Oy vey... have someone fact check and proofread before putting things up... :)
Point is, CLEARLY 1.096v wouldn't do it....
Is liquid helium any more challenging than LN2? Or just more expensive? Thinking along the lines of thermal paste, cold bugs etc? It's pretty incredible how far they got this kaby, although I dunno how I feel about disabling 2 cores to get there.
Again, cores dont matter... they were going for clocks. They will do this fkr single threaded benchmarks too. ;)
Personally I'd be interested to see what the 7.56G chip can do with no HT and only 1 core.
They were both overclocked under extreme circumstances to see who could reach the highest clock. The record holder is still AMD.