• 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
47,301 (7.52/day)
Location
Hyderabad, India
System Name RBMK-1000
Processor AMD Ryzen 7 5700G
Motherboard ASUS ROG Strix B450-E Gaming
Cooling DeepCool Gammax L240 V2
Memory 2x 8GB G.Skill Sniper X
Video Card(s) Palit GeForce RTX 2080 SUPER GameRock
Storage Western Digital Black NVMe 512GB
Display(s) BenQ 1440p 60 Hz 27-inch
Case Corsair Carbide 100R
Audio Device(s) ASUS SupremeFX S1220A
Power Supply Cooler Master MWE Gold 650W
Mouse ASUS ROG Strix Impact
Keyboard Gamdias Hermes E2
Software Windows 11 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
191 (0.06/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
259 (0.08/day)
Processor Intel Core i7 11700
Motherboard Asus b560-i ROG
Cooling Thermalright Assassin King Mini
Memory G.Skill Trident Z 3600
Video Card(s) RTX 3080 FE
Display(s) Dell S2721DGF
Case Ncase M1
Power Supply Corsair SF750
Mouse HyperX
Keyboard HyperX
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
19,372 (3.54/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
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
2,715 (0.58/day)
System Name MSI GP76
Processor intel i7 11800h
Cooling 2 laptop fans
Memory 32gb of 3000mhz DDR4
Video Card(s) Nvidia 3070
Storage x2 PNY 8tb cs2130 m.2 SSD--16tb of space
Display(s) 17.3" IPS 1920x1080 240Hz
Power Supply 280w laptop power supply
Mouse Logitech m705
Keyboard laptop keyboard
Software lots of movies and Windows 10 with win 7 shell
Benchmark Scores Good enough for me
The power consumption is very impressive for 2 extra cores, the same has 7700k.
 

las

Joined
Nov 14, 2012
Messages
1,693 (0.38/day)
System Name Meh
Processor 7800X3D
Motherboard MSI X670E Tomahawk
Cooling Thermalright Phantom Spirit
Memory 32GB G.Skill @ 6000/CL30
Video Card(s) Gainward RTX 4090 Phantom / Undervolt + OC
Storage Samsung 990 Pro 2TB + WD SN850X 1TB + 64TB NAS/Server
Display(s) 27" 1440p IPS @ 360 Hz + 32" 4K/UHD QD-OLED @ 240 Hz + 77" 4K/UHD QD-OLED @ 144 Hz VRR
Case Fractal Design North XL
Audio Device(s) FiiO DAC
Power Supply Corsair RM1000x / Native 12VHPWR
Mouse Logitech G Pro Wireless Superlight + Razer Deathadder V3 Pro
Keyboard Corsair K60 Pro / MX Low Profile Speed
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
Jun 27, 2016
Messages
294 (0.09/day)
System Name MacBook Pro 16"
Processor M1 Pro
Memory 16GB unified memory
Storage 1 TB
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
 
Joined
Apr 14, 2016
Messages
288 (0.09/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
3,956 (0.90/day)
System Name Skunkworks 3.0
Processor 5800x3d
Motherboard x570 unify
Cooling Noctua NH-U12A
Memory 32GB 3600 mhz
Video Card(s) asrock 6800xt challenger D
Storage Sabarent rocket 4.0 2TB, MX 500 2TB
Display(s) Asus 1440p144 27"
Case Old arse cooler master 932
Power Supply Corsair 1200w platinum
Mouse *squeak*
Keyboard Some old office thing
Software Manjaro
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
22,679 (6.05/day)
Location
The Washing Machine
System Name Tiny the White Yeti
Processor 7800X3D
Motherboard MSI MAG Mortar b650m wifi
Cooling CPU: Thermalright Peerless Assassin / Case: Phanteks T30-120 x3
Memory 32GB Corsair Vengeance 30CL6000
Video Card(s) ASRock RX7900XT Phantom Gaming
Storage Lexar NM790 4TB + Samsung 850 EVO 1TB + Samsung 980 1TB + Crucial BX100 250GB
Display(s) Gigabyte G34QWC (3440x1440)
Case Lian Li A3 mATX White
Audio Device(s) Harman Kardon AVR137 + 2.1
Power Supply EVGA Supernova G2 750W
Mouse Steelseries Aerox 5
Keyboard Lenovo Thinkpad Trackpoint II
VR HMD HD 420 - Green Edition ;)
Software W11 IoT Enterprise LTSC
Benchmark Scores Over 9000
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
294 (0.09/day)
System Name MacBook Pro 16"
Processor M1 Pro
Memory 16GB unified memory
Storage 1 TB
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.
 

Durvelle27

Moderator
Staff member
Joined
Jul 10, 2012
Messages
6,797 (1.49/day)
Location
Memphis, TN
System Name Black Prometheus
Processor |AMD Ryzen 7 1700
Motherboard ASRock B550M Pro4|MSI X370 Gaming PLUS
Cooling Thermalright PA120 SE | AMD Stock Cooler
Memory G.Skill 64GB(2x32GB) 3200MHz | 32GB(4x8GB) DDR4
Video Card(s) ASUS DirectCU II R9 290 4GB
Storage Sandisk X300 512GB + WD Black 6TB+WD Black 6TB
Display(s) LG Nanocell85 49" 4K 120Hz + ACER AOPEN 34" 3440x1440 144Hz
Case DeepCool Matrexx 55 V3 w/ 6x120mm Intake + 3x120mm Exhaust
Audio Device(s) LG Dolby Atmos 5.1
Power Supply Corsair RMX850 Fully Modular| EVGA 750W G2
Mouse Logitech Trackman
Keyboard Logitech K350
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
19,372 (3.54/day)
Benchmark Scores Faster than yours... I'd bet on it. :)
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
294 (0.09/day)
System Name MacBook Pro 16"
Processor M1 Pro
Memory 16GB unified memory
Storage 1 TB
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
22,679 (6.05/day)
Location
The Washing Machine
System Name Tiny the White Yeti
Processor 7800X3D
Motherboard MSI MAG Mortar b650m wifi
Cooling CPU: Thermalright Peerless Assassin / Case: Phanteks T30-120 x3
Memory 32GB Corsair Vengeance 30CL6000
Video Card(s) ASRock RX7900XT Phantom Gaming
Storage Lexar NM790 4TB + Samsung 850 EVO 1TB + Samsung 980 1TB + Crucial BX100 250GB
Display(s) Gigabyte G34QWC (3440x1440)
Case Lian Li A3 mATX White
Audio Device(s) Harman Kardon AVR137 + 2.1
Power Supply EVGA Supernova G2 750W
Mouse Steelseries Aerox 5
Keyboard Lenovo Thinkpad Trackpoint II
VR HMD HD 420 - Green Edition ;)
Software W11 IoT Enterprise LTSC
Benchmark Scores Over 9000
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
294 (0.09/day)
System Name MacBook Pro 16"
Processor M1 Pro
Memory 16GB unified memory
Storage 1 TB
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
985 (0.21/day)
Location
Ireland
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
131 (0.05/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
Apr 30, 2006
Messages
1,181 (0.17/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
22,679 (6.05/day)
Location
The Washing Machine
System Name Tiny the White Yeti
Processor 7800X3D
Motherboard MSI MAG Mortar b650m wifi
Cooling CPU: Thermalright Peerless Assassin / Case: Phanteks T30-120 x3
Memory 32GB Corsair Vengeance 30CL6000
Video Card(s) ASRock RX7900XT Phantom Gaming
Storage Lexar NM790 4TB + Samsung 850 EVO 1TB + Samsung 980 1TB + Crucial BX100 250GB
Display(s) Gigabyte G34QWC (3440x1440)
Case Lian Li A3 mATX White
Audio Device(s) Harman Kardon AVR137 + 2.1
Power Supply EVGA Supernova G2 750W
Mouse Steelseries Aerox 5
Keyboard Lenovo Thinkpad Trackpoint II
VR HMD HD 420 - Green Edition ;)
Software W11 IoT Enterprise LTSC
Benchmark Scores Over 9000
Joined
Jun 27, 2016
Messages
294 (0.09/day)
System Name MacBook Pro 16"
Processor M1 Pro
Memory 16GB unified memory
Storage 1 TB
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.
 
D

Deleted member 172152

Guest
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
575 (0.21/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