• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Core i7-8700K Reviewed by Lab501

btarunr

Editor & Senior Moderator
Staff member
Joined
Oct 9, 2007
Messages
37,066 (8.62/day)
Location
Hyderabad, India
Processor AMD Ryzen 7 2700X
Motherboard MSI B450 Gaming Pro Carbon AC
Cooling AMD Wraith Prism
Memory 2x 16GB Corsair Vengeance LPX DDR4-3000
Video Card(s) Colorful iGame GTX 1070 Ti Vulcan X
Storage Western Digital Black NVMe 512GB
Display(s) Samsung U28D590 28-inch 4K UHD
Case Corsair Carbide 100R
Audio Device(s) Creative Sound Blaster Recon3D PCIe
Power Supply Antec EarthWatts Pro Gold 750W
Mouse Razer Abyssus
Keyboard Microsoft Sidewinder X4
Software Windows 10 Pro
Ahead of the 5th October reviews NDA, Lab501 posted their review of the Core i7-8700K six-core processor using samples not provided by Intel, paired with an Aorus Z370 Ultra Gaming motherboard. The tests reveal that the i7-8700K trades blows with the Ryzen 7 1800X in multi-threaded tests, despite two fewer cores, and has a clear leadership in single-threaded tests. It also reveals that the i7-8700K may not be as pricier than the i7-7700K as previously thought. Interestingly, the i7-8700K also spells trouble for "Skylake-X" Core i7 SKUs such as the i7-7800X and i7-7820X, as it offers multi-threaded performance in proximity to them, while being cheaper overall.

The Core i7-8700K is able to sustain its Turbo Boost frequencies of 4.20 GHz better than Intel's other Core X HEDT chips, which translates into higher gaming performance. The tests reveal that today's games still don't need six cores, and on the merit of high sustained clock speeds alone, the i7-8700K is shaping up to be among the fastest processors you can choose for gaming PC builds. Lab501 also got the i7-8700K to overclock to 5.1 GHz with relative ease. The chip runs feisty hot at overclocked speeds, but rewards with HEDT-like performance. Find other interesting findings of Lab501 in the source link below.



More results follow.


View at TechPowerUp Main Site
 
Last edited:
Joined
Jun 22, 2016
Messages
166 (0.15/day)
System Name cryohellinc PC
Processor i7-4770k @4.5ghz
Motherboard MSI Z87 MPOWER
Cooling Corsair Hydro Series™ H115i
Memory Corsair Vengeance 16gb @1600mhz
Video Card(s) MSI Sea Hawk GTX 1080 2100mhz
Storage 3ssd - 64gb (software) ;128 (software + operational system); 256gb - Games + 1TB HDD
Display(s) PG348Q
Case Obsidian Series® 750D Full Tower ATX Case
Audio Device(s) Creative Sound Blaster ZxR + Beyerdynamic DT 990 Pro 250Ω
Power Supply Antec High Current Pro HCP-1200 1200W
Mouse SteelSeries Sensei
Keyboard SteelSeries 6gv2 + custom O-Rings. Using Via PS2 connector
Software Windows 10 Pro x64
Impressive performance, however they use Tooth Paste again, and that is my main issue with this. Besides you need yet another new mobo...

Will wait for next Ryzen for comparison, as apparently the 12nm version will come this February.

Lets wait and see what happens then. Am4's longevity + solder is more attractive to me than 10 extra fps.

But lets wait and see.
 
Joined
May 12, 2016
Messages
55 (0.05/day)
As expected, doesn't look like it brings more benefit in gaming over 6700/7700, but great cpu overall. Though all this z270 incompatibility nonsense definitely won't make me switch from 2-year old 6700k until at least Ice Lake and Zen 2.
 
Joined
Dec 31, 2009
Messages
14,758 (4.24/day)
Impressive performance, however they use Tooth Paste again, and that is my main issue with this. Besides you need yet another new mobo...

Will wait for next Ryzen for comparison, as apparently the 12nm version will come this February.

Lets wait and see what happens then. Am4's longevity + solder is more attractive to me than 10 extra fps.

But lets wait and see.
Weird... 5.1ghz overclock with toothpaste... must be terrible to work at stock and be able to overclock to 5.1ghz on toothpaste..

PS - 5.1ghz was on air... they benched cinebench at 5.2 and pifast at 5.3......all on that 'toothpaste' ...

Of course, a single copy can not set a rule, the second copy of the Intel Core i5 8600K that you will soon see in a very interesting article running stable at 5GHz with 1.35v. However, all the marks we have collected from other industry colleagues indicate that most 8600K copies can run stable at 5GHz with acceptable voltage.This means that 5GHz in everyday use, for a processor equipped with 6 cores, cooled on the air, has just become a reality!
 
Joined
Feb 18, 2012
Messages
1,475 (0.55/day)
System Name MSI GE75 Raider
Processor i7-8750h
Cooling 2 laptop fans
Memory 32gb of 2666mhz DDR4
Video Card(s) Nvidia 2070
Storage Seagate FireCuda 2tb SSHD , x1 Western Digital 2TB M.2
Display(s) 17.3" IPS 1920x1080 144Hz
Power Supply 230w power supply
Mouse Logitech m705
Keyboard laptop keyboard
Software lots of movies and Windows 10 with win 7 shell
Benchmark Scores High enough for me
The power consumption is very impressive for 2 extra cores, the same has 7700k.
 

las

Joined
Nov 14, 2012
Messages
659 (0.27/day)
Processor i9-9900K @ 5.2 GHz
Motherboard AsRock Z390 Extreme
Cooling Custom Water
Memory 32GB DDR4 3500/CL15
Video Card(s) 1080 Ti @ 2+ GHz
Storage 970 Evo Plus 1TB + 64TB NAS
Display(s) Asus PG279Q 27" 1440p/IPS/165 Hz/Gsync + LG C7V 65" 2160p/OLED/HDR
Case Fractal Define Mini C
Audio Device(s) Asus Essence STX w/ Upgraded Op-Amps
Power Supply EVGA SuperNOVA 850 G2
Mouse Logitech G Pro Wireless
Keyboard Logitech G610 / MX Red + O Rings
Software Windows 10 Pro x64
Impressive performance, however they use Tooth Paste again, and that is my main issue with this. Besides you need yet another new mobo...

Will wait for next Ryzen for comparison, as apparently the 12nm version will come this February.

Lets wait and see what happens then. Am4's longevity + solder is more attractive to me than 10 extra fps.

But lets wait and see.
10 fps? 8700K got 30 fps higher minimum than 1800X in Far Cry Primal here.
Stuff like this matters for 100+ Hz gamers, alot.

1800X is pretty much a maxed out Ryzen chip. There's barely any OC headroom. And it's more expensive than 8700K.

Not to mention that 5 GHz probably will be no problem on Coffee Lake because of 14nm++ optimization/tweaks ^^ Even cheap air cooling will be able to do 4.8 GHz.

I'll take that "toothpaste" over non-overclockable Ryzen CPU's. Reaching 4 GHz is far from easy and most fail, when 100% stability is required.
 
Last edited:
Joined
Apr 14, 2016
Messages
184 (0.15/day)
People should try educate themselves for the reasons of using TIM. So many ignorant people see something online and repeated it without knowing why and they try to pretend to be smart. omg
Yeah, what i saw most is this new "hit", people doesnot even knows why intel use TIM, instead of soldering.

Ofc theres a reason.
 
Joined
Dec 28, 2012
Messages
1,154 (0.48/day)
Weird... 5.1ghz overclock with toothpaste... must be terrible to work at stock and be able to overclock to 5.1ghz on toothpaste..

PS - 5.1ghz was on air... they benched cinebench at 5.2 and pifast at 5.3......all on that 'toothpaste' ...
Its fine until the TIM wears out, and then you have to delip and repaste the chip, which necessitates either potentially damaging your CPU or buying a tool for just that purpose.

Meanwhile, 10-15 years on, the soldered chip will work just as well as it did out of the box, as is evidenced by the plethora of old chips that still work fine.

On a 6 core CPU, there really should be solder.


People should try educate themselves for the reasons of using TIM. So many ignorant people see something online and repeated it without knowing why and they try to pretend to be smart. omg
And perhaps you should educate yourself on why people dont want TIM instead of solder. omg.
 
Joined
Sep 17, 2014
Messages
9,396 (5.33/day)
Location
Too Long to fit in a single line here.
Processor i7 8700k 4.7Ghz @ 1.26v
Motherboard AsRock Fatal1ty K6 Z370
Cooling beQuiet! Dark Rock Pro 3
Memory 16GB Corsair Vengeance LPX 3200/C16
Video Card(s) MSI GTX 1080 Gaming X @ 2100/5500
Storage Samsung 850 EVO 1TB + Samsung 830 256GB + Crucial BX100 250GB + Toshiba 1TB HDD
Display(s) Eizo Foris FG2421
Case Fractal Design Define C TG
Power Supply EVGA G2 750w
Mouse Logitech G502 Protheus Spectrum
Keyboard Sharkoon MK80 (Brown)
Software W10 x64
People should try educate themselves for the reasons of using TIM. So many ignorant people see something online and repeated it without knowing why and they try to pretend to be smart. omg
Let's face facts, those whiners are not actually in the market for buying a faster CPU.

They just want a CPU at some point and think complaining about toothpaste to the market leader will make any difference for their future (whenever that is) purchase.

Its a bit sad IMO, and its also getting very very old now.
 
Joined
Jun 27, 2016
Messages
92 (0.08/day)
Its fine until the TIM wears out, and then you have to delip and repaste the chip, which necessitates either potentially damaging your CPU or buying a tool for just that purpose.

Meanwhile, 10-15 years on, the soldered chip will work just as well as it did out of the box, as is evidenced by the plethora of old chips that still work fine.

On a 6 core CPU, there really should be solder.



And perhaps you should educate yourself on why people dont want TIM instead of solder. omg.
It doesn't matter what people want, especially people who don't understand what they are talking about. Intel is not a government organization to jump at the whim of every unsatisfied baby. Even der8auer defends Intel for using TIM because he knows exactly why, while you don't.
 
Joined
Jul 10, 2012
Messages
5,212 (2.03/day)
Location
Memphis, TN
System Name Black Prometheus
Processor AMD Ryzen 9 3900X
Motherboard ASRock B350 Pro4
Cooling Corsair H70
Memory SK Hynix 32GB(8GBx4) DDR4 @2666MHz
Video Card(s) Sapphire Navi 5700 XT
Storage Sandisk X300 512GB + Seagate 2TB
Display(s) HP LA2405WG 24" Triple Monitor (5760x1200)
Case DeepCool Matrexx 55 w/ 3x120mm Intake + 4x120mm Exhaust
Audio Device(s) Samsung 5.1 Setup
Power Supply Corsair RM750X
Mouse Logitech Trackman
Keyboard Dell OEM
Software Windows 10 EDU x64
To say somewhat i'm impressed. This actually is a decent chip if priced correctly like around the Ryzen 7 1700(X) which is what most people chose over the pricer 1800(X). If i didn't already go ryzen i may have considered this. Awaiting more reviews
 
Joined
Dec 31, 2009
Messages
14,758 (4.24/day)
Its fine until the TIM wears out, and then you have to delip and repaste the chip, which necessitates either potentially damaging your CPU or buying a tool for just that purpose.

Meanwhile, 10-15 years on, the soldered chip will work just as well as it did out of the box, as is evidenced by the plethora of old chips that still work fine.

On a 6 core CPU, there really should be solder.



And perhaps you should educate yourself on why people dont want TIM instead of solder. omg.
delid, not delip. :)

Lol, never had that happen where it dries out. People claim kt does, but also dont seem to understand that is its normal consistency.

Also, people dont keep cpus for 10-15 years... lol. A P4 or A64 would make me cry if i had to use one of those for anything... and that is just 10-12 years ago..
 
Last edited:
Joined
Jun 27, 2016
Messages
92 (0.08/day)
Let's face facts, those whiners are not actually in the market for buying a faster CPU.

They just want a CPU at some point and think complaining about toothpaste to the market leader will make any difference for their future (whenever that is) purchase.

Its a bit sad IMO
I don't have any issues with unsatisfied consumers if their arguments are justified with good reasoning. But people who copy and paste phrases like tooth-paste that they saw online are automatically discarded by me as trash-opinion.
 
Joined
Sep 17, 2014
Messages
9,396 (5.33/day)
Location
Too Long to fit in a single line here.
Processor i7 8700k 4.7Ghz @ 1.26v
Motherboard AsRock Fatal1ty K6 Z370
Cooling beQuiet! Dark Rock Pro 3
Memory 16GB Corsair Vengeance LPX 3200/C16
Video Card(s) MSI GTX 1080 Gaming X @ 2100/5500
Storage Samsung 850 EVO 1TB + Samsung 830 256GB + Crucial BX100 250GB + Toshiba 1TB HDD
Display(s) Eizo Foris FG2421
Case Fractal Design Define C TG
Power Supply EVGA G2 750w
Mouse Logitech G502 Protheus Spectrum
Keyboard Sharkoon MK80 (Brown)
Software W10 x64
Its fine until the TIM wears out, and then you have to delip and repaste the chip, which necessitates either potentially damaging your CPU or buying a tool for just that purpose.

Meanwhile, 10-15 years on, the soldered chip will work just as well as it did out of the box, as is evidenced by the plethora of old chips that still work fine.

On a 6 core CPU, there really should be solder.



And perhaps you should educate yourself on why people dont want TIM instead of solder. omg.
Show me all those systems you're still running with 15 year old soldered chips in them, please. It'll be nice vintage hardware to look at.

Also, while you're at it, show me a dried out TIM under a non-delidded Ivy Bridge, because that's the oldest toothpaste chip in the portfolio. I'll let you know, I have one, and it performs 100% identical to what it did on day one.
 
Joined
Jun 27, 2016
Messages
92 (0.08/day)
Its fine until the TIM wears out, and then you have to delip and repaste the chip, which necessitates either potentially damaging your CPU or buying a tool for just that purpose.

Meanwhile, 10-15 years on, the soldered chip will work just as well as it did out of the box, as is evidenced by the plethora of old chips that still work fine.

On a 6 core CPU, there really should be solder.



And perhaps you should educate yourself on why people dont want TIM instead of solder. omg.
https://overclocking.guide/the-truth-about-cpu-soldering/
 
Joined
May 4, 2012
Messages
961 (0.37/day)
Location
Ireland
System Name SilentIO
Processor AMD Ryzen 5 2600X
Motherboard Asus TUF B450M-Pro Gaming
Cooling Corsair H60
Memory 2x8GB Corsair Vengeance LP @3400 CL16
Video Card(s) MSI GTX 1070 Gaming
Storage 2x Samsung 840 EVO 120GB in Raid0, Samsung 960 PRO 1TB
Display(s) Qnix QX2710 Evolution II Matte 27 @120Hz
Case Cooler Master Silencio 352
Audio Device(s) SoundBlaster e5 + Kingston HyperX Cloud II / Logitech Z333 + Blue Snowball
Power Supply Corsair CX500M
Mouse Corsair Scimitar
Keyboard Corsair K65
Software Windows 10 Pro x64, Xubuntu 19.04
Pretty sure after using this CPU for 15 years you’d have bigger issues than dry TIM :-D

Anyways, 8700k seems to be pretty good performer. Let’s hope Intel doesn’t mess up with pricing.
 
Joined
Apr 12, 2017
Messages
65 (0.08/day)
Processor Haswell-E - i7-5820K @ 4.4GHz
Motherboard ASUS X99S
Cooling Noctua NH-D15S
Memory 16GB Corsair Vengeance LPX 3000MHz
Video Card(s) Palit Super JetStream 980Ti
Storage SSD: 512GB [Crucial MX100] HDD: 34TB [4 x 6TB WD Blue, 2 x 5TB Seagate External]
Display(s) Acer ProDesigner BM320 4K
Case Fractal Design R5
Power Supply Corsair RM750x
Still not worth an upgrade from my 5820K
 
Joined
May 4, 2012
Messages
961 (0.37/day)
Location
Ireland
System Name SilentIO
Processor AMD Ryzen 5 2600X
Motherboard Asus TUF B450M-Pro Gaming
Cooling Corsair H60
Memory 2x8GB Corsair Vengeance LP @3400 CL16
Video Card(s) MSI GTX 1070 Gaming
Storage 2x Samsung 840 EVO 120GB in Raid0, Samsung 960 PRO 1TB
Display(s) Qnix QX2710 Evolution II Matte 27 @120Hz
Case Cooler Master Silencio 352
Audio Device(s) SoundBlaster e5 + Kingston HyperX Cloud II / Logitech Z333 + Blue Snowball
Power Supply Corsair CX500M
Mouse Corsair Scimitar
Keyboard Corsair K65
Software Windows 10 Pro x64, Xubuntu 19.04
Joined
Apr 30, 2006
Messages
1,181 (0.24/day)
Processor 7900
Motherboard Rampage Apex
Cooling H115i
Memory 64GB TridentZ 3200 14-14-14-34-1T
Video Card(s) Fury X
Case Corsair 740
Audio Device(s) 8ch LPCM via HDMI to Yamaha Z7 Receiver
Power Supply Corsair AX860
Mouse G903
Keyboard G810
Software 8.1 x64
Its fine until the TIM wears out, and then you have to delip and repaste the chip, which necessitates either potentially damaging your CPU or buying a tool for just that purpose.
The TIM doesn't "wear out" to the point you have to reapply the paste...

Over time the thermal conductivity does decrease slighty but at stock speeds these chips have plenty of thermal headroom.

https://www.dowcorning.com/content/publishedlit/11-1688A-01.pdf

Its gunna be lols once AMD starts using paste :eek:
 
Joined
Sep 17, 2014
Messages
9,396 (5.33/day)
Location
Too Long to fit in a single line here.
Processor i7 8700k 4.7Ghz @ 1.26v
Motherboard AsRock Fatal1ty K6 Z370
Cooling beQuiet! Dark Rock Pro 3
Memory 16GB Corsair Vengeance LPX 3200/C16
Video Card(s) MSI GTX 1080 Gaming X @ 2100/5500
Storage Samsung 850 EVO 1TB + Samsung 830 256GB + Crucial BX100 250GB + Toshiba 1TB HDD
Display(s) Eizo Foris FG2421
Case Fractal Design Define C TG
Power Supply EVGA G2 750w
Mouse Logitech G502 Protheus Spectrum
Keyboard Sharkoon MK80 (Brown)
Software W10 x64
Joined
Jun 27, 2016
Messages
92 (0.08/day)
In all truth I de-lidded my 7700k to gain more thermal headroom using liquid metal and that really works, but I crippled 3 capacitors in the process.
 
Joined
May 29, 2017
Messages
480 (0.62/day)
8600k does quite well too. Combines gaming of a 7700k (mins aren't great, but overclocking fixes that issue and makes it about as fast as a oc-ed 7700k when it comes to mins) and the raw power of a 1700 (on average) for 1600x money!

8700k is a bit too expensive for me, but the 8600k's price/performance is at least on par with ryzen I think (again, on average) and as a casual content creator my very much free programs prefer singlethread performance and games of course still LOVE high clockspeeds, although more cores never hurts. I game at 1440p though, so I want the high mins of an oc-ed 8600k or a 8700k, not so much the averages or highs, but the mins are just that much higher than on ryzen still and I can't wait for the 12nm refresh, so coffee lake seems like the best option atm.
 
Joined
Jul 18, 2017
Messages
209 (0.29/day)
Welp there goes the entire Ryzen lineup. This thing is even faster than a 7700k in gaming!? A bit faster in multithreading than their fastest model with 2 less cores!? Can overclocked to 5GHz and beyond DDR4 4200!? Price drop panic mode incoming.
 
Top