Intel Corp. this week officially introduced its Core i7 and Core i5 microprocessors previously known under “Devil’s Canyon” code-name as well as the anniversary edition Pentium chip. The new microprocessors come with unlocked multipliers and are designed for overclockers and enthusiasts. At the Computex Taipei trade-show Intel held a contest among overclockers to show off overclocking potential of the new chips. Apparently, the results were quite promising.
The new Intel Core i-series “Devil’s Canyon” unlocked central processing units are based on the code-named Haswell micro-architecture and fit into LGA1150 mainboards. To boost overclocking potential of the new microprocessors, Intel refined their packaging with features next-generation polymer thermal interface (NGPTIM) and extra capacitors to “smooth” power delivery to the die. Since the capacitor configuration on the back side of the new Core i-series processors is vastly different from the original Haswell microprocessors, it is possible that the company also slightly changed the design of the chip itself. The enhancements provide additional performance and overclocking headroom for the new chips.
The official specifications of the new processors for overclockers look as follows:
- Core i7-4790K – 4 cores with Hyper-Threading, 4.0GHz clock-rate, 4.40GHz maximum Turbo Boost clock-rate, 8MB L3 cache, 88W TDP, Intel HD Graphics 4600 built-in graphics core, LGA1150 form-factor;
- Core i5-4690K – 4 cores, 3.50GHz clock-rate, 3.90GHz maximum Turbo Boost clock-rate, 6MB L3 cache, 88W TDP, Intel HD Graphics 4600 built-in graphics core, LGA1150 form-factor;
- Pentium G3258 – 2 cores, 3.20GHz clock-rate, 3MB of L3 cache, integrated graphics core, unlocked multiplier, LGA1150 form-factor as well as 53W thermal design power, LGA1150 form-factor.
In a bid to show off the overclocking potential of the new “Devil’s Canyon” microprocessors, Intel held a competition among professional overclockers at the Computex Taipei 2014 trade-show. The participants of the Intel OC Challenge Computex 2014 were allowed to use air or liquid cooling as well as extreme ways of cooling, such as liquid nitrogen.
Overclockers from team MSI – Pepinorang, Pt1t and TopPC – managed to overclock the Core i7-4790K with all four cores and the HyperThreading enabled to 5497.72MHz using liquid cooling. While the team did formally used a closed-loop liquid-cooling system, it should be noted that the system itself was cooled-down using air cooled by liquid nitrogen.
Specialists from team Gigabyte – Dinos22, HiCookie, Sofos1990 – overclocked the Core i7-4790K with all four cores and the HyperThreading activated to whopping 6331MHz using liquid nitrogen (LN2).
While the top results achieved at the event are well below the CPU-Z OC World Records, they confirm good overclocking potential of the Core i7-4790K. Typically world’s records are set on hand-picked microprocessors that have outstanding overclocking potential.
It remains to be seen whether commercial versions of Intel Core i7-4790K will be as good overclockers as the samples provided by Intel to the IOCC participants. Last year commercial Intel Core i7-4770K “Haswell” chips were not as good as engineering samples of the same CPUs when it comes to overclocking.
Intel's Core i7-4790K and Core i5-4690K microprocessors previously known under “Devil’s Canyon” code-name as well as the anniversary edition Pentium G3258 chip will be available later this month.