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8700K at 4.90 at 1.30 good or bad?

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Posted · Original PosterOP

Hello folks,

 

I just moved up from an 8600k to a 8700k. My OC is stable at 4.9ghz (no avx offset) at 1.30v, with uncore at 4600mhz. Is this a good or bad chip? I tried 5.0 (avx -1 offset) at 1.38... it was stable for prime95 1344k stress test for an hr... but real bench crashed because temps went over 100c.

 

I am using a Noctua NH-U14s cooler, and 3200 CL16 ram OC'd to 3466. Asus Z370-A Prime.

VRM Temps were in 70's even at 1.38v.

 

Thanks in advance.

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CPU: Intel i7 9700K@5.3GHz SC/DC, 5.1GHz QC, 5.0Ghz All core, AVX offset 0| Motherboard: Asus Maximus XI Hero | RAM: Patriot Viper Steel 2x8gb@3600Mhz 14-14-14-29, 1N, 1.45V| 

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Case: Fractal Design R6 TG Blackout | Storage: Corsair MP510 960gb | Cooling: CPU: Kraken X62 - GPU: Kraken X42 - both with Noctua NF-A14's |

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14 minutes ago, asgnp said:

My OC is stable at 4.9ghz (no avx offset) at 1.30v, with uncore at 4600mhz. Is this a good or bad chip?

No idea if it's good or bad, but I am getting similar results: all six cores at 4.9GHz with 1.33V vcore. I can get stable 5GHz, but I have to raise vcore so much that my cooling can't keep up anymore, so Ima hafta settle to 4.9GHz. I could disable all-core overclock and therefore get a higher single-core OC, but I find I get way better performance in everything I do with all cores overclocked to 4.9GHz, instead of one to 5.1GHz.


Hand, n. A singular instrument worn at the end of the human arm and commonly thrust into somebody’s pocket.

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Posted · Original PosterOP

@DoctorNick

 

I've seen these stats, but i have no way of knowing what percentile my chip falls at... because i cant get to anywhere close to the voltages siliconlottery uses to test these chips.

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1.30v pretty close to average.

You dont have the cooling to determine a "good" cpu.

 


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Lid-less 8700K / Maximus X Hero / G.Skill 4266mhz B-Die / VGA any benching rig / Antec 1000w CP series

 

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Posted · Original PosterOP
2 minutes ago, ShrimpBrime said:

1.30v pretty close to average.

You dont have the cooling to determine a "good" cpu.

 

Yea. Thats the problem. The NH-U14s is pretty beefy... it was easily able to handle a 8600k at 5.1ghz with 1.36v... but the 8700k is much much much hotter. Do you think upgrading to a NH-D15 would do any better?

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Hard to say if that will help.... I dont think it's worth the money.

 

How does it do with HT disabled? Does it run a little cooler at least?


3 Programs to Help your Ryzen memory overclocking needs click me

Lid-less PGA 2700x / ROG B450-I Gaming / G.Skill 3600mhz B-Die / GTX 980 bmod / Antec 850w CP series

Lid-less 8700K / Maximus X Hero / G.Skill 4266mhz B-Die / VGA any benching rig / Antec 1000w CP series

 

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Posted · Original PosterOP
Just now, ShrimpBrime said:

Hard to say if that will help.... I dont think it's worth the money.

 

How does it do with HT disabled? Does it run a little cooler at least?

Much cooler without HT. Power draw drops from 160w to 130w in the same scenario.

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2 minutes ago, asgnp said:

Yea. Thats the problem. The NH-U14s is pretty beefy... it was easily able to handle a 8600k at 5.1ghz with 1.36v... but the 8700k is much much much hotter. Do you think upgrading to a NH-D15 would do any better?

I use my 8700k on this same cooler, 5GHz at 1.26V, no offset and uncore at 4.7.

 

That said the NH-D15 should be able to let you OC even better :)


Don't forget to quote (arrow bottom left of the message) or use name tag (@name) for us to see your answer.

 

 

Spoiler

My computer

CPU : I7-8700k  5GHz 1,26v

CPU cooler : Noctua NH-U14S

GPU : Sapphire Nitro+ Radeon RX Vega 64

Motherboard : Gigabyte Z390 Aorus Ultra

RAM : 32GB Corsair Vengeance RGB 3466 MHz CL16

SSD : Samsung 850 EVO-Series 500GB 2,5" + Sabrent Rocket 1TB M.2

HDD : Seagate BarraCuda 4TB 3,5" 5400RPM

Case : Phanteks ECLIPSE P600S Black 

PSU : Corsair HX Platinum 850W

Others : Noctua NF-F12 PWM chromax.black.swap x3 top exhaust

Noctua NF-A14 PWM chromax.black.swap x3 front intake, x1 rear exhaust, x1 on the CPU cooler

Noctua NA-HC6 chromax.black on the CPU cooler

 

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Posted · Original PosterOP
24 minutes ago, Plouffe said:

I use my 8700k on this same cooler, 5GHz at 1.26V, no offset and uncore at 4.7.

Surely, you've got a golden chip.

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1 minute ago, asgnp said:

Surely, you've got a golden chip.

I can't go past 5GHz though, but I was lucky with the voltage anyway.


Don't forget to quote (arrow bottom left of the message) or use name tag (@name) for us to see your answer.

 

 

Spoiler

My computer

CPU : I7-8700k  5GHz 1,26v

CPU cooler : Noctua NH-U14S

GPU : Sapphire Nitro+ Radeon RX Vega 64

Motherboard : Gigabyte Z390 Aorus Ultra

RAM : 32GB Corsair Vengeance RGB 3466 MHz CL16

SSD : Samsung 850 EVO-Series 500GB 2,5" + Sabrent Rocket 1TB M.2

HDD : Seagate BarraCuda 4TB 3,5" 5400RPM

Case : Phanteks ECLIPSE P600S Black 

PSU : Corsair HX Platinum 850W

Others : Noctua NF-F12 PWM chromax.black.swap x3 top exhaust

Noctua NF-A14 PWM chromax.black.swap x3 front intake, x1 rear exhaust, x1 on the CPU cooler

Noctua NA-HC6 chromax.black on the CPU cooler

 

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1 minute ago, asgnp said:

Surely, you've got a golden chip.

Only if he's doing 5.4-5.5ghz all threads... But I highly doubt it.


3 Programs to Help your Ryzen memory overclocking needs click me

Lid-less PGA 2700x / ROG B450-I Gaming / G.Skill 3600mhz B-Die / GTX 980 bmod / Antec 850w CP series

Lid-less 8700K / Maximus X Hero / G.Skill 4266mhz B-Die / VGA any benching rig / Antec 1000w CP series

 

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Posted · Original PosterOP

Anyways, the local shop allowed me to return it and take another chip... its stable at 1.3v 5ghz with no avx offset... and even chip to chip at same voltages and load... the new chip is 5-8c cooler running.

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2 hours ago, asgnp said:

Anyways, the local shop allowed me to return it and take another chip... its stable at 1.3v 5ghz with no avx offset... and even chip to chip at same voltages and load... the new chip is 5-8c cooler running.

Good move.

5ghz doesn't just sound nice it is a performance plato.

 

My i7 8700k ran about the same as yours(4.9 all cores).  It ran cooler since I used a Maximum Hero X board and a Noctua NH-D15.

I had no issues with the performance when I ran it with a GTX 1080 ti but it did not fare well against my i7 8086k(5ghz all cores) when upgraded to a RTX 2080 ti. 

 

The 5gh all cores on the i7 8086k was good for an extra 3 frames average over the i7 8700k with 4.9 all cores when they both ran 1080 tis(EVGA SC2).

I upgraded the i7 8086k rig first to a EVGA 2080 ti XC and later the i7 8700k with a FTW3 Ultra. 

 

At first the i7 8700k won in benches against the i7 8086k since it was running a faster more expensive GPU. Then I overclocked the 2080 ti XC to match the FTW3 Ultra and the 5ghz chip won every time. Even adding more overclock to the FTW3 Ultra did not help since the i7 8700k started bottlenecking badly at the test resolutions.

The underperforming i7 8700k made the extra $300 I paid over the XC pointless. 

 I replaced the i7 8700k with another i7 8086k and now the FTW3 Ultra always wins.

 


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Think mine is at 5.0 at 1.32. So I’d say 4.9 at 1.30 is normal. I don’t touch avx as I don’t know what I’m going. 
 

May push mine further as the auto Oc pushed it over 5.1 at 1.40~. So should have room to go up manually 


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