# Overclocking study – Intel Core i7 4790K & Intel Pentium G3258 – air, water, phase-change, DICE & LN2

Goooood morning LAB501 !!! Finally, the article you have all been waiting for is here ! Heck, to be honest, this is also the article we were also waiting for. Even since the dawn of LAB501, we always wanted to do a complete overclocking study, using most of the cooling methods out there. And we never did a full study, because we are very thorough in our work, and each time we would start we would give too much attention to one of the cooling methods and in the end we could not treat all cooling methods properly. Just imagine that one of Ramiro’s air cooling reviews had 96 pages, and you will understand what I am talking about.

But enough about that – now we finally managed to do a full overclocking study, starting from air cooling and going through the most important stages. It doesn’t matter what type of overclocker you are – you might be a casual overclocker who wants to boost his system’s performance in daily-use, or a hard core LN2 user who didn’t try Core i7 4790K or Pentium G3258 yet – this study is for both of you!. From normal ambient air-cooling to low ambient air-cooling, from All-In-One water cooling solutions to extreme water cooling, from Single Stage phase change cooling to Dry Ice, and finally all the way to Liquid Nitrogen… we have tested all!

It’s all about numbers in this study, and that is why we didn’t test one CPU, but two – the overclocker’s dream Intel Core i7 4790K, and the budget overclocker Pentium G3258, or Pentium 20th anniversary edition, as it is also known. If you want to have the most powerful gaming rig, or break world records – Intel Core i7 4790K seems the logical choice. If you want to have fun overclocking, or maybe learn how to do it, Pentium G3258 is a great first step, and it is also very affordable (72 USD).

But we didn’t just tested 2 CPU’s… this review is also a team work result between my colleague matose and me. He is the one who spent hundreds of hours in the lab pushing the CPU’s with all the cooling methods available, and he is going to show you the results and analyze the scaling, while I am going to explain each cooling method we used and which users it is suitable for.

So… are you excited? Are you ready for a great journey from air cooling to liquid nitrogen? Are you ready to see some impressive numbers? Then join us as we guide you trough one of the greatest overclocking adventures ever. Let’s go!!!

1 – At what frequency did the Pentium G3258 ran fully stable using extreme water cooling? Answer: 5126MHz at 1.55v

2 – What maximum frequency did we achieve on Intel Core i7 4790K using LN2? Answer: 6346MHz at 1.95v

The answers are:

1) Intel Pentium G3258 WC 5352MHz

2) Intel Core i7 4790K LN2 6346MHz

Good luck everyone:)

1)5126MHz fully stable for Intel Pentium G3258

2)6346MHz maximum for Intel Core i7-4790k

1 – The G3258 ran fully stable in Prime95 at 5126MHz with extreme water cooling.

2 – The 4790K reached a maximum frequency of 6346MHz with LN2.

Excellent article

Congratulations

1. 5126 Mhz

2. 6346 Mhz

1- at 5126,19 mhz

2- 6346,53 mhz

1 – 5126MHz

2 – 6346MHz

Un articol foarte frumos, multumesc!

Buna ziua,

Raspunsurile sunt :

1) At what frequency did the Pentium G3258 ran fully stable using extreme water cooling? 5126MHz

si

2) What maximum frequency did we achieve on Intel Core i7 4790K using LN2? 6346MHz

Va multumesc!

1 – 5126MHz. @1.55V SuperPi :5250MHz @1.56V. Maximum CPU-Z validation: 5352MHz @1.6V

2 – SuperPi: 6159MHz @1.95V, CPU-Z: 6346MHz

1 – At what frequency did the Pentium G3258 ran fully stable using extreme water cooling?

5126MHz fully stable

2 – What maximum frequency did we achieve on Intel Core i7 4790K using LN2?

6346MHz

The Pentium G3258 ran at 5126Mhz fully stable (under prime95) under extreme WC.

The max frequency that the 4790K achieved was 6346.53Mhz under LN2.

1. 5126MHz fully stable

2. 6346MHz max. validation frequency

1. 5250MHz

2. 6346MHz

1. 5126MHz fully stable @ extreme water cooling

2. 6346MHz max freq @ LN2

4846 MHz

6346 Mhz

1. 5126MHz

2. 6346MHz

5126

6346

1 – At what frequency did the Pentium G3258 ran fully stable using extreme water cooling?

Pentium G3258 ran fully sable at 1.637V more exactly 1.588V and frequency of 5352 MHz more exactly 5351.88MHz.

2 – What maximum frequency did we achieve on Intel Core i7 4790K using LN2?

The maximum frequency of Intel Core i7 4790k using LN2 was 6346MHz.

1 – 5126.19 MHz

2 – 6346.53 MHz

1. 5271mhz

2. 6309mhz

Pentium G3258 – 5126 Mhz

Core i7 4790K – 6346 Mhz

Pentium G max WC= 5351.88 MHz

4790k LN2= 6346.53 MHz

– 5126MHz fully stable

– 6346MHz

1. 5126MHz fully stable

2. 6159MHz for SuperPi and 6346MHz for CPU-Z validation

1. The little Pentium G3258 is a nice beastie and it could run fully stable with low temperatures on extreme watercooling at 5126Mhz fully stable.

2. Using extreme solution with LN2 on the new Intel Core i7 4790K made possible using a high vcore to keep the chip cool and a CPU-Z Validation of 6346 Mhz.

5126MHz on WC

i7 4790k 6346MHz on LN2

5126MHz on WC

i7 4790k 6346MHz on LN2

G3258 5126.19

4790k 6346.53

5126MHz pentru Pentium G3258 si 6346MHz pentru i7 4790K

1)-5126MHz

2)-6346MHz

– Pentium G3258 ran fully stable using extreme water cooling at 5126MHz

– Intel Core i7 4790K maximum frequency on LN2 = 6346MHz

1. 5126MHz

2. 6346MHz

1. 5126MHz fully stable at a voltage of 1.55v and a maximum temperature of 73 degrees C

2. 6346MHz

1 – At what frequency did the Pentium G3258 ran fully stable using extreme water cooling?

Ans : 5126MHz fully stable at a voltage of 1.55v and a maximum temperature of 73 degrees C(refer to pg15 first para)

2 – What maximum frequency did we achieve on Intel Core i7 4790K using LN2?

Ans : 6346.53MHz @ 1.932v(cpu-z reading)(refer to pg25 last screenshot)

1. 5126MHz fully stable at a voltage of 1.55v and a maximum temperature of 73 degrees C.

2. 6346MHz.

1. 5126MHz stable at a voltage of 1.55v and maximum temperature of 73 degrees C.

2. 6346MHz.

1 – 5126Mhz

2 – 6346.53Mhz

1. 5126.19 mhz

2. 6346.53 mhz

1. 5126MHz fully stable

2. 6346MHz Max Freq

Question 1 : 5126 mhz

Question 2 : 6346 mhz

1. 5126 mhz

2. 6346 mhz

Hi Matose & Monstru,

Great article! I must say a lot of effort went into making that, good work!

Here’s my answers for the contest:

1: 5126MHz

2: 6346MHz

You made 5126 stable on WC on G3258 and max frequency with 4790K on LN2 was 6346. Congratulations and keep pushing! 🙂

– was fully stable – 5126MHz

– maximum frequency on LN2 – 6346MHz

1. G3258 was fully stable at 5126MHz.

2. Maximum achieved with 4790K on LN2 was 6346MHz

1. 5351.88 MHz

2. 6346.53 MHz

1. It ran stable at 5126.19MHz

2. 6346.53MHz was the highest reachable frequency under LN2.

G3258 WC Extreme – 5126MHz

4790K LN2 – 6159MHz

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