Overclocking study – Intel Core i7 4790K & Intel Pentium G3258 – air, water, phase-change, DICE & LN2
|CPU||Core i7 4790K & Pentium G3258|
|MB||GIGABYTE Z97X-SOC Force|
|RAM||Team Zeus 2 x 4GB DDR3 1600 / Corsair Dominator Platinum 2400 CL9|
|Air Cooling||Noctua NH-D14 + 2 x Coolink SwiF 120p @ 2000 rpm + Arctic Cooling MX-4|
|Air Cooling - low ambient||Noctua NH-D14 + 2 x Scythe Gentle Typhoon @ 5400 rpm + Arctic Cooling MX-4|
|AIO||Enermax Liqtech 120X + Arctic Cooling MX-4|
|Extreme Water Cooling||EK-Supremacy Clean CSQ + EK-DCP 4.0 PWM + Gelid GC Extreme|
|Single Stage||DimasTech Single Stage+ Gelid GC Extreme|
|Dry Ice||SF3D Inflection Point + Gelid GC Extreme|
|LN2||EK-SF3D Inflection Point Evo + Gelid GC Extreme|
|SSD||Intel SSD 730 240GB|
|Case||Dimastech Benchtable Easy v2.5|
|Ambient temp||25 oC (17-18 oC for low ambient air cooling)|
|OS||Windows 7 Ultimate x64 SP1|
For this test we used a motherboard designed for overclocking, GIGABYTE Z97X-SOC Force, to allow our two candidates to scale properly without any artificial limits. For LN2 tests we used the Corsair Dominator 2x4GB 2400MHz CL9, while for the other scenarios we used the Team Zeus 2x4GB 1600MHz CL9 (to fit nicely under the monster Noctua NH-D14).
While the use of a skinned Windows XP 32bit would have been nice talking strictly about benching, this article is not just about that. We are talking scaling and stability starting with plain aircooling and finishing with LN2, so to make the article relevant also for the average home user we used Windows 7 64 bit for all tests. For each scenario (except LN2) we tested the stability with at least 10 minutes of Prime95 64bit using all cores, a light single threaded stability with SuperPi 1M and the absolute maximum frequency with a CPU-Z validation.
Now there is one more thing – as I said, this review is read by die hard overclockers but also beginners. So before we show you the results for each cooling stage we will also briefly explain it with a simple language, so everybody can understand. Forgive us, die hard fans, but everybody started from somewhere and needed to learn…even you…even us. So be patient and bear with us.