Core i7 7900X OC to 6.01GHz

[DeScruff]

1 hour ago, Enderman said:

LN2 extreme overclocking is done on one core.

All other cores get disabled.

At least for the AMD one it was, maybe not for this test.

If I recall the record holder for highest Clock is an FX-8150 with 2 cores at 8.49Ghz.
Then about a year later the FX-8350 was overclocked to 8.17Ghz with all 8 cores enabled. - And I think thats the record for highest overclock with all cores enabled? (Or at least record for 8 Cores...)  I could be off though.
 

[Master Disaster]

Current frequency WR is

 

https://valid.x86.fr/lpza4n

[MageTank]

3 hours ago, zMeul said:

there is no legitimacy when OCing in his "world" means extreme OCing on LN₂ - I'm so (not!) sorry mobo manufacturers didn't produce special der8auer boards, because that's what he wants

when I 1st saw the original video I thought that mobo manufacturers really screwed up; but when the 2nd video, with clarifications, pooped .... der8auer lost all plot points

He didn't refer to LN2 at all in those videos. He had encountered VRM throttling under extreme AVX2 load under Prime95 small FFT's at 4.5-4.6ghz when using an unlimited VRM power current. Extremely niche situation, and not as big a deal as his title made it out to be, but it's still useful information nonetheless. It means people like myself, who use Prime95 as our staple stress test, get to point to that video as a reminder for those that buy cheap motherboards and expect them to move mountains. It's yet another testament to the old adage of "you get what you pay for". 

 

Realistically, for your average user, they won't run into a VRM bottleneck. They will be bottlenecked by the fact that they didn't have a delidded chip like Der8auer, and will likely run into core-temp limitations long before their VRM flakes out on them. That is to say, as long as they are not completely devoid of reason and wish to run their CPU at respectable temperatures. I understand Intel claims these chips are perfectly fine at running 100C nonstop, I just dislike the idea of it, given the physics involved with silicon itself.

 

TL:DR? Don't invest a fortune on a CPU, just to skimp out on the motherboard. 

[RadiatingLight]

5 minutes ago, MageTank said:

He didn't refer to LN2 at all in those videos. He had encountered VRM throttling under extreme AVX2 load under Prime95 small FFT's at 4.5-4.6ghz when using an unlimited VRM power current. Extremely niche situation, and not as big a deal as his title made it out to be, but it's still useful information nonetheless. It means people like myself, who use Prime95 as our staple stress test, get to point to that video as a reminder for those that buy cheap motherboards and expect them to move mountains. It's yet another testament to the old adage of "you get what you pay for". 

 

Realistically, for your average user, they won't run into a VRM bottleneck. They will be bottlenecked by the fact that they didn't have a delidded chip like Der8auer, and will likely run into core-temp limitations long before their VRM flakes out on them. That is to say, as long as they are not completely devoid of reason and wish to run their CPU at respectable temperatures. I understand Intel claims these chips are perfectly fine at running 100C nonstop, I just dislike the idea of it, given the physics involved with silicon itself.

 

TL:DR? Don't invest a fortune on a CPU, just to skimp out on the motherboard. 

that may be true of the 10-core, but what about the 18-core? I can easily see a mild OC on the 7980XE equaling the same power draw as Der8auer's OC on a 10-core. maybe I'm wrong though.

[MageTank]

Just now, RadiatingLight said:

that may be true of the 10-core, but what about the 18-core? I can easily see a mild OC on the 7980XE equaling the same power draw as Der8auer's OC on a 10-core. maybe I'm wrong though.

That is currently everyone's worry, but again, CPU thermals are the biggest concern. We are talking an 80% difference in core-count. I do not expect people to be pushing 4.5ghz on 18c/36t, even with the biggest custom loop. At best, I expect 1-2 cores to be boosting to 4.7, a few others to 4.5 (maybe 4 cores at up to 4.5) and the rest sitting at 3.5ish-4ghz. Again, this is all just assumptions (because we know very little about it) but yeah...  I still don't see the VRM being the bottleneck even in that situation. Not for the average consumer anyways (not that your average consumer needs 32 threads). 

[porina]

4 hours ago, Jito463 said:

Not "non-existent", but perhaps over-inflated.  There is some legitimacy to the claim.

It took a while, but I'd summarise it as "if you overclock hard and run Prime95, things may get hot", which is not exactly a surprise. The detail wasn't clear early on and it made it sound like even moderate overclocks could encounter serious problems.

 

What would be more interesting is if Skylake-X behaves differently than Syklake-S when overclocking. There might be bigger changed than otherwise, with the added AVX-512 and cache rebalance. I debated getting the 6 core to play with but I'm overflowing with PCs at the moment...

[snpr1992]

That is quite a ridiculous overclock.  His setup on a test bench is crazy as well, a hair dryer?  If you haven't seen it, you should take a look.

Spoiler

 

 

Craziest part is the temp probe at -110.1 C and that there are other builds, multi processor Xeons to be exact, on air that beat his numbers. Top 10 List

 

[Sauron]

5 hours ago, BuckGup said:

Right, it's sure to destroy it in benchmarks but if we were just comparing highest OCes

We weren't, the world record is in performance for a 10core. When it comes to pure top clock speeds even intel cpus have been overclocked farther than 6ghz.

[Dabombinable]

I'm still thinking about it this way:

With my 4790K locked at 4.4GHz across all 4 cores the "IA Cores" power consumption is 103W (Aida64 FPU test).  Even with the supposed improvements in efficiency with Skylake (I highly doubt them since Haswell has inherently CPU only higher power consumption due to the integrated voltage regulator) that means that 8 Skylake X cores alone would be pulling 200W+ at the clock speeds people are striving for.  And considering how few motherboards even now can support the FX 9590 with its similar power consumption I'm not surprised that the VRM cooling on the "cheap" X299 boards struggle with 10+ core CPU.  That being said the heatsinks are inferior to what we had 10 years ago (even on boards with single 8 pin power connectors+8 to 16 phase VRM) so the manufacturers are still at fault

[DrMikeNZ]

3 hours ago, MageTank said:

He didn't refer to LN2 at all in those videos. He had encountered VRM throttling under extreme AVX2 load under Prime95 small FFT's at 4.5-4.6ghz when using an unlimited VRM power current. Extremely niche situation, and not as big a deal as his title made it out to be.

4.5-4.6 is way too high for AVX2 and is just stupid. I run my 6900K at 4.0GHz and it draws 200W through the VRM in AVX2 workloads. I wouldn't feel comfortable running my CPU any higher in this workload.

I can certainly understand the 7900X drawing 400W through the VRM at 4.5-4.6GHz. I would imagine it would be able to do 4.0-4.2GHz safely without needing all the extreme workarounds with half the power draw and only a negligible performance loss, which would be much more realistic for AVX2 users.

[themctipers]

On 7/9/2017 at 9:40 PM, NumLock21 said:

Hwbot member Sofos1990 has managed to overclocked his Intel 7900X 10 core cpu from the stock clock of 3.3GHz all the way up to 6.01GHz, with the help of LN2 of course. The system configuration he used to achieve that clock speeds, has a,

• Intel Core i9-7900X
• G.Skill Trident Z
• 120 GB Neutron SSD
• GIGABYTE X299 SOC Champion
• Corsair AX 1500i PSU
• Liquid Nitrogen

This got him a Hwbot prime score of 12,189.52 points, making it the world record in the 10 cores cpu category.

 

 

 

http://hwbot.org/submission/3594514_sofos1990_hwbot_prime_core_i9_7900x_12189.52_pps/

http://wccftech.com/intel-core-i9-7900x-skylake-x-cpu-overclocked-6-01-ghz-liquid-nitrogen-become-worlds-fastest-single-cpu-hwbot-record/

now if only intel made sure that almost all 7900x could overclock well (not 6ghz well but like 4.5 almost guarenteed, 4.7/4.8 ghz norm, 5.2 pushing the absolute limits)  then

[NumLock21]

4 minutes ago, themctipers said:

now if only intel made sure that almost all 7900x could overclock well (not 6ghz well but like 4.5 almost guarenteed, 4.7/4.8 ghz norm, 5.2 pushing the absolute limits)  then

X99 can OC to that range you're asking for

[themctipers]

Just now, NumLock21 said:

X99 can OC to that range your asking for

but this is *10 core* not pussy 8/6 co- kaby lake x

 

[NumLock21]

1 minute ago, themctipers said:

but this is *10 core* not pussy 8/6 co- kaby lake x

 

X99 is not kabylake X. It's Haswell-E and Broadwell-E. 6950X is a 10 core cpu.

[themctipers]

Just now, NumLock21 said:

X99 is not kabylake X. It's Haswell-E and Broadwell-E. 6950X is a 10 core cpu.

forgot about that

 

maybe +100/200mhz for everything?

4.6 almost guarenteed, 4.9/5ghz norm, 5.3ghz pushing it?

[NumLock21]

5 minutes ago, themctipers said:

forgot about that

 

maybe +100/200mhz for everything?

4.6 almost guarenteed, 4.9/5ghz norm, 5.3ghz pushing it?

One of the members here got his 1650 up to 5GHz. Most I can get with stability was 4.3GHz, still happy with it doe.

 

[themctipers]

Just now, NumLock21 said:

One of the members here got his 1650 up to 5GHz. Most I can get with stability was 4.3GHz, still happy with it doe.

 

3.9ghz 3770k

[MoonlightSylv]

1 minute ago, themctipers said:

3.9ghz 3770k

Isn't 3.9GHz the stock turbo clock though?

[NumLock21]

1 minute ago, themctipers said:

3.9ghz 3770k

3.9 is just turbo. there is no oc

[themctipers]

Just now, ShadowTechXTS said:

Isn't 3.9GHz the stock turbo clock though?

hush

[Lays]

On 7/9/2017 at 7:50 PM, BuckGup said:

Right, it's sure to destroy it in benchmarks but if we were just comparing highest OCes

This picture is of him running a benchmark, not going for max freq.

[dexT]

1 hour ago, NumLock21 said:

One of the members here got his 1650 up to 5GHz. Most I can get with stability was 4.3GHz, still happy with it doe.

 

I ran my 5820K @ 5.5GHz http://hwbot.org/submission/3522108_

 

 

[Guest]

The core i9-7900X wont stand a chance against threadripper. And wouldn't be impossible to overclock a cpu on all 10 cores to 6.0 GHz.

[ARikozuM]

Is this with all cores enabled or like the AMD 8GHz with one core enabled?

[Drak3]

On 7/9/2017 at 7:53 PM, TrigrH said:

well if our sun dies, at least Intel will have us covered with X299.

Way to steal my joke.

 

I made it in every x299 is hot thread.