Sign in with
Sign up | Sign in

World Record: Haswell CPU Overclocked to 7193.8 MHz

By - Source: HWBot.org | B 50 comments

Chi-Kui Lam from Hong Kong has set a new overclocking world record.

Do you enjoy overclocking? It's fun if you do it right. One overclocker, Chi-Kui Lam, is probably having quite a lot of fun, as he just set a new world record for the Intel Core i7-4770K. Chi-Kui managed to overclock the chip to a very respectable 7193.8 MHz, which is the highest frequency recorded for any Haswell product to date.

Of course, there are certain costs to reaching such a high frequency. These include using liquid nitrogen for cooling as well as a staggering core voltage of 2.048 V. The CPU's Hyperthreading also had to be disabled, along with two of its cores.

Other hardware used included an Asus Maximus VII Gene motherboard, 256 GB OCZ Vertex SSD, Corsair Dominator memory and a High Current Pro 1300 W power supply from Antec. An Nvidia GT 630 took the graphics load off the iGPU.

Of course, there is no question that this is a completely useless exercise for everyday purposes, but it remains fun to see what certain hardware combinations are capable of.

Follow Niels Broekhuijsen @NBroekhuijsen. Follow us @tomshardware, on Facebook and on Google+.

Discuss
Add a comment
Ask a Category Expert
React To This Article

Create a new thread in the News comments forum about this subject

Example: Notebook, Android, SSD hard drive

Top Comments
  • 23 Hide
    TechyInAZ , August 19, 2014 3:43 PM
    Quote:
    If you disable hyperthreading you have an i5.
    If you disable half the cores and hyperthreading you have a highly advanced Pentium D.


    No not a Pentium D, a Pentium G3258 20th Anniversary Edition.
  • 20 Hide
    LostAlone , August 19, 2014 3:08 PM
    So... This isn't actually a world record, it's just a record for a Haswell? Because those are some seriously different things, and I'm certain that a bunch of AMD chips have been taken past 8GHz, and that was a couple of years ago.

    It doesn't stop this being cool and all, just that if you're going to call something a world record, it really needs to be the world record for all comparable things. It's like saying that a station wagon set a world speed record, then finding out that it was only for station wagons.
  • 15 Hide
    derekullo , August 19, 2014 3:05 PM
    If you disable hyperthreading you have an i5.
    If you disable half the cores and hyperthreading you have a highly advanced Pentium D.
Other Comments
    Add your comment Display all 50 comments.
  • 15 Hide
    derekullo , August 19, 2014 3:05 PM
    If you disable hyperthreading you have an i5.
    If you disable half the cores and hyperthreading you have a highly advanced Pentium D.
  • 20 Hide
    LostAlone , August 19, 2014 3:08 PM
    So... This isn't actually a world record, it's just a record for a Haswell? Because those are some seriously different things, and I'm certain that a bunch of AMD chips have been taken past 8GHz, and that was a couple of years ago.

    It doesn't stop this being cool and all, just that if you're going to call something a world record, it really needs to be the world record for all comparable things. It's like saying that a station wagon set a world speed record, then finding out that it was only for station wagons.
  • 4 Hide
    g00ey , August 19, 2014 3:41 PM
    If you disable half the cores and hyperthreading you have a highly advanced Pentium D.[/quote]

    Are you sure? As I understand it, the Pentium D was a true dual core Pentium 4 with hyper threading disabled and the P4 was architecturally quite different from the prior Pentium 3. IIRC Intel scrapped the P4 and went back to the design philosophy of the Pentium 3 when they designed the Core Duo CPUs and their successors.
  • 23 Hide
    TechyInAZ , August 19, 2014 3:43 PM
    Quote:
    If you disable hyperthreading you have an i5.
    If you disable half the cores and hyperthreading you have a highly advanced Pentium D.


    No not a Pentium D, a Pentium G3258 20th Anniversary Edition.
  • 3 Hide
    InvalidError , August 19, 2014 4:31 PM
    Quote:
    Quote:
    If you disable hyperthreading you have an i5.
    If you disable half the cores and hyperthreading you have a highly advanced Pentium D.


    No not a Pentium D, a Pentium G3258 20th Anniversary Edition.

    Yup, that was exactly the first thing I wanted to post when I read the "news."

    No point in getting an i7 to overclock if you are going to downgrade it to Pentium-level feature-wise to get there.
  • 5 Hide
    StarBound , August 19, 2014 4:52 PM
    I know the point of suicide overclocking is to push a cpu or gpu to the absolute max but when are we going to get to the point where we say the standard is to have the system then run a game or benchmarking tool for an hour and stable before we accept the overclock numbers?
  • 10 Hide
    pills161 , August 19, 2014 5:28 PM
    Doesn't mean anything really if you have to gimp the chip to get there. I'm with Starbound, being able to boot into windows and open CPU-Z doesn't mean shit to me, let's see you overclock a chip to 7193.8 without partially disabling it and then run some games/benchies and then I'll be impressed.
  • 0 Hide
    jasonelmore , August 19, 2014 8:21 PM
    Quote:
    If you disable hyperthreading you have an i5.
    If you disable half the cores and hyperthreading you have a highly advanced Pentium D.


    not really true. Cache is still bigger per core, still has more instruction sets (dedicated hardware).

    Cache differentiates Core cpu's more than anything besides Hyper Threading.
  • 4 Hide
    mrmotion , August 19, 2014 9:45 PM
    "Of course, there is no question that this is a completely useless exercise for everyday purposes, but it remains fun to see what certain hardware combinations are capable of."

    Looks like you guys quit reading before the end of the article...
  • 1 Hide
    wireframed , August 19, 2014 10:33 PM
    So really, this is about as fast as a 3GHz i7? Doesn't seem worth it, losing 60% of the performance.
    Of course if you only care about singlethreaded apps, but how many of those are really that demanding? Everything I'm waiting on is multithreaded (and almost perfectly parallel).

    'Course he didn't do it for the performance, I get that. It just seems odd since he's only focusing on one small part of what performance is. Really nails how pervasive the "frequency = performance" is.
  • 4 Hide
    heero yuy , August 20, 2014 1:56 AM
    world record? for intel cpus? because i'm pretty sure someone has had an AMD CPU up to/over 8GHz before
  • 0 Hide
    wireframed , August 20, 2014 3:32 AM
    Quote:
    world record? for intel cpus? because i'm pretty sure someone has had an AMD CPU up to/over 8GHz before


    That's another problem with focusing on MHz exclusively - a 5GHz AMD CPU is in many ways equivalent to a 3-4GHz Intel CPU (depending on what strengths the application plays to).

    Really, this could be considered a "14.4GHz CPU" (7.2GHz on two cores), which makes it a lot less impressive if you take a 3.9GHz i7 which would be a 15.6GHz CPU. Again, I'm a bit biased, because my most demanding applications scale almost linearly with the number of cores (and CPUs and workstations, for that matter).
    So yeah, two fast cores, that a stock i7 from a couple years ago could beat in many applications... :p 
  • 3 Hide
    InvalidError , August 20, 2014 3:38 AM
    Quote:
    world record? for intel cpus? because i'm pretty sure someone has had an AMD CPU up to/over 8GHz before

    Either way, wake me up when overclocking world-records translate into world-records in either benchmarks or real-world applications instead of merely large numbers in CPU-Z that cannot be used for any actual work.
  • 1 Hide
    Saso Mange , August 20, 2014 3:46 AM
    I see many of you talk about other CPU's which got over 8GHz mark before... I ask you, did OS boot completely with such OC ?
  • 4 Hide
    oxiide , August 20, 2014 5:39 AM
    Quote:
    I know the point of suicide overclocking is to push a cpu or gpu to the absolute max but when are we going to get to the point where we say the standard is to have the system then run a game or benchmarking tool for an hour and stable before we accept the overclock numbers?

    There already is a standard. It has to boot into the OS and be able to screenshot a CPU-Z window.

    Competitive overclocking is about the competition itself, it has nothing to do with real-world benchmark performance. Take it or leave it as it is. Yes, it is abstracted from the reality of how we use our processors, but then Usain Bolt's sprinting doesn't reflect how most of us use our legs, either.
  • 3 Hide
    InvalidError , August 20, 2014 5:55 AM
    Quote:
    Yes, it is abstracted from the reality of how we use our processors, but then Usain Bolt's sprinting doesn't reflect how most of us use our legs, either.

    But Bolt's legs do show a practical application of what the human body is capable of with extensive training and genetic luck-of-the-draw.

    "Suicide overclocking" on the other hand is more like bodybuilders who cheat using steroids and end up ripping their muscles because they lacked sufficient conditioning from regular training to keep up with the strain... big muscles that cannot do any more useful work than people with half the muscular mass.
  • 0 Hide
    rishiswaz , August 20, 2014 8:27 AM
    Guys you do realize that dividing a frequency by the amount of cores doesn't mean anything right? 7.2GHz dual core does not mean its a 14.4GHz CPU, there are thing like parallelism and multithreading which don't really allow the CPU to scale linearly like that. The CPU will still balance threads even if there are only fewer than normal, it just means each individual thread will have a larger load.
  • 1 Hide
    rishiswaz , August 20, 2014 8:27 AM
    Guys you do realize that dividing a frequency by the amount of cores doesn't mean anything right? 7.2GHz dual core does not mean its a 14.4GHz CPU, there are thing like parallelism and multithreading which don't really allow the CPU to scale linearly like that. The CPU will still balance threads even if there are only fewer than normal, it just means each individual thread will have a larger load.
  • 1 Hide
    Dustin Mock , August 20, 2014 8:49 AM
    Anyone know what the true cpu clock speed world record really is? Not these types of competitions world record, but something along the lines of an "MIT custom built CPU operating at .5 degrees above absolute zero" kind of world record.
  • 0 Hide
    InvalidError , August 20, 2014 9:41 AM
    Quote:
    Guys you do realize that dividing a frequency by the amount of cores doesn't mean anything right? 7.2GHz dual core does not mean its a 14.4GHz CPU

    That is not the point.

    The point is that those overclock records are doing nothing more than managing to boot into Windows without crashing. If you ran Prime95 or even real-world applications or game on them, they would likely crash before getting in-game proper... they are not proper overclocks; they are just-barely-working overclocks. They are not usable for anything beyond claiming a world record.
Display more comments
React To This Article