i7-6820HK (4.1GHz) Unlocked -vs- i7-6700HQ (3.5GHz) Locked

Aside to the obvious, I'm curious if the difference between the two is big enough to justify the price of the i7-6820HK CPU? - Yes. You're already paying thousands of dollars so what will a little more hurt for a better chip? You don't buy a sports car and opt for the economy engine, unless....

For someone like me who designs, edits and does a lot of rendering....are we talking seconds here with minor differences or is it significant enough to pay up to get the higher CPU? - There is no comparison.

Gaming wise....well games don't really utilize the CPU as much as the GPU, but I assume the i7-6700HQ is more than enough? - For most games yes, but for a little more you can have it all with an unlocked CPU rather than a locked one. A lot of games also utilize the CPU a lot and it does make a difference.

To be continued with more Q&A for those seeking this info.

 

Tray price for 6700HQ and 6820HK is the same so better make sure that extra your being charged is justified by a much better cooling system and power circuit.

For using 3 or 4 cores the 6700HQ runs at 3.1GHz, only 1 core active runs 3.5GHz. The 6820HQ can do 4.1GHz on all 4 cores providing you didn't get a lemon and the laptop is up to it. More cache on the 6820HK too.

For rendering you are looking at maybe a 30% decrease in time.

Sorry but IMHO the 6700HQ overall doesn't look any better than the 4700HQ from 2 gens back performance wise unless your looking to save a little power.

 

Can the 6820HK long turbo beyond 47 watts?

 

user @skunk1 posted some info on this forum in different places.

You could look from here to start with.

Of course a lot will depend on the laptop manufacturer.

 

I suppose that depends on what our baseline here is, and I don't know what applications you're using specifically to guide you, but what I will say is that , in general, we're talking about a 1 Ghz speed difference here when all 4 cores are in use, which is not typical. That is certainly a huge difference, but if you're only 'editing' some 5 minute go-pro videos then no, it might not be worth it.

The 6700HQ is perfectly capable of handling any AAA title and keeping even a desktop 980 satisfied, if you're not interested in chasing un-necessary FPS's then it is certainly suitable.

Notebook check has a nifty tool for some comparisons that you could look at;
http://www.notebookcheck.net/Mobile-Processors-Benchmark-List.2436.0.html

 

For anyone working with CPU intensive tasks, a 6820HK is a no brainer over the 6700HQ, although you could get by with either or... but the choice is simple.

 

If you're willing to OC the 6820HK to 4-4.1GHz, then it's a no brainer. You're getting near desktop skylake performance and 25-30% faster cpu performance compared to the 6700HQ. There are benchmarks comparing this exact scenario here:
http://www.notebookcheck.net/Skylake-for-Notebooks-Core-i7-6700HQ-and-i7-6820HK-Review.150864.0.html
On the other hand, if you're not going to OC, then stock 6820HK is barely faster than the 6700HQ. You're looking at a 5-8% difference, so not as compelling.

 

If spending thousands anyway...go all the way...

 

Sure, no problem.
Does video editing tax the CPU?

 

Once it maxes out the GPU then the CPU turns into the GPU to carry the overflow....ROLF jk...

 

I have gamed with both, could tell 0 difference. The 6820 was overclocked as well. I have posted this before, but where we are with games and hardware, it will be very hard to tax one of these processors with the use we put them through.

Overclocking leads to higher heat, etc. Not my thing, but I understand the need to tinker.

 

^^^Read first post.

 

Overclocking doesn't lead to higher heat.. I have my 4790K Oced and it runs cooler than at stock? Want to know why?

There is a thing called undervolting lol.. With Skylake it is even more necessary as for some reason Intel has made the stock voltages too high for no reason.. UV and OC, your temps will be lower than stock lol

Sent from my LG-H811 using Tapatalk

 

What about future needs? You sit stuck with the choice you made when you select soldered hardware.

 

The 6820HK is good mobile chip.

 

I talked about 6700Hq vs 6820Hk

 

Link? Thanks.

 

You type in the link... The question was; i7-6820HK (4.1GHz) Unlocked -vs- i7-6700HQ (3.5GHz) Locked...
My reply in the thread was; What about future needs? ↑↑↑ You don't choose the weaker locked 6700HQ if your future needs for power becomes greater
The only other option you have is a proper processor such as i7-6700K but this one can't be used in thin/slim laptops if you prefer that.

 

I'm confused. I was asking where the link was to where you had talked about the comparison so that I could read it.

 

Possible that we miss understood each other. The only viable option is a socket processor... But If this is not an option for you so is a i7-6820Hk the only BGA processor for your future needs. http://hwbot.org/hardware/processors

 

Indeed....perhaps we did All good.

 

The only thing I can recommend (for myself ) is a Clevo Sky X9 aka P870. This will be my purchase in the nearest time. But also my maxed Aw17 in my sig + upgrade it with Gtx980m is a good choice.
Newest Aw Echo models is not an option for me. So I can't give you a recommendation of any of the them. You have one of them as far as I can see
Edit; f you want fun with an old AW M15X then have a chat with @King of Interns

 

guys i need your advice...

i am planning to order a Alienware 15 R2 used primary as desktop replacement-gaming machine with the 980m.

i am not sure if i should take the 6700HQ CPU or the 6820HK (described on the Dell-Homepage as " dynamic overclocked up to 4,1 GHz").

The Price difference is 100 € and i think in the future i will use a Graphic-Amplifier which let me tend to the stronger CPU.

I 've read in a article that the TDP with manual OC to 4 GHz using Intel XTU goes up to around 54 Watt's from NON-OC 2,7 GHz running at 34 Watt's (seen in the diagrams) :

http://www.notebookcheck.net/Skylake-for-Notebooks-Core-i7-6700HQ-and-i7-6820HK-Review.150864.0.html

my questions are now:

the TDP limit for both CPUs is 45 Watts... and on the Dell Homepage it's described as " dynamic overclocked up to 4,1 GHz"

means this that the Turbo-Boost will be disabled/reduced over 45 watt's?

for the Owners of an Alienware 15 R2 with a 6820HK - is it possible to deactivate via BIOS the " dynamic overclocking feature" that the CPU runs on its nominal 2,7 GHz with the normal Turbo-Boost (4active cores around 3,2 GHz) ?

because i am not interested in buying the "6820HK dynamic overclocked up to 4,1 GHz CPU" if it then throttles itself by the exceeded TDP-Limit and i cannot disable the "dynamic OC"

thx

 

I'm not actually sure why Dell call it "Dynamic Overclocking" as there is nothing Dynamic about it. In stock form the machine will run at stock clocks.

Overclocking the machine is done via an option in the BIOS and then selecting one of 3 options. However, none of these 3 options are any good as they run ridiculous amounts of voltage and subsequent heat is generated.

I would take a look at this thread - http://forum.notebookreview.com/thr...-settings-for-4-0ghz-to-4-3ghz-stable.787791/

Some of our machines OC very well, I run mine at 3.8Ghz on all cores whilst undervolted........

 

@sirleeofroy

thx for your reply!

"stock form" means the CPU is running at stable 2,7 GHz with the activated normal Turbo-Boost (when 4 cores are active - boosting up around 3,2 GHz) ?

have you noticed CPU throttling in any form? (i have an Alienware 15 R1 with big Throttling issues and will be sure that i am getting a better machine with the R2 ;-) )

are you happy with the Laptop in general or are there any faulty things?

 

the 6820 will throttle ....... if it gets too hot, or there's not enough voltage for given clock spd

laptop itself is SOLID!!! its really well built, runs cool and quiet.... totally destroys my C2Q SLI GTX460 desktop rig... theyre like Marmite, you either love em or you hate em!!

(Skylake is far better than the previous architecture for throttling by the looks of it... TBH id rather the machine throttle for a few seconds than hit me with a BSOD then have to restart the process all over again)

 

@skunk1
thx for reply!

do you mean the 6820 throttles with the nominal clock 2,7 GHz + Turbo between 2,7GHz and 3,2 GHz or only throttles when you activate one of the 3 overclocking-options via BIOS?

(my old AW 15 R1 throttles down to 800 MHz :-( )

are you using a 240 W PSU?

you talk about the Temps.... how hot your CPU gets thats causing "Thermal-Throtteling"?

 

sorry...... at stock clocks (2.7 / 3.2 turbo) you wont see ANY throttle.... and yes 240w PSU in use

in mine @ 4.1 / 4.2ghz it will throttle when it reaches about 95c ..(Thermal Throttle) or if @ these clocks i haven't applied enough voltage it will throttle.. (Power Limit Throttle)

i actually run mine stock with a 100mv UV .... temps barely break 67c while gaming..

perfect!!

 

sounds nice - thank you skunk1!

 

Hello iunlock, I saw that you do video rendering. I'm a videographer and i bought Asus rog with i7 6820hk, gtx 1070, 32 gb ram. When i export a video(full hd) from premiere the cpu frequency stays around 2.2-2.5. ghz. It happens to you or i have a brokn cpu?

 

Hello,

It sounds like your OC on the CPU is too high with not enough or too much voltage. Could you provide more details?

I'm running 43x as my daily driver and the clocks while rendering stay at 43x.

::iunlock::

 

I don't know what do you refer as the daily driver. I did not overclocked the cpu. I use only the asus and selected turbo gear. Interesting is when i edit and play 4k/full hd video the cpu frequency stays at 3.6-3.8, but when i'm exporting from premiere, h.264 codec, not lots of effects , just lumetri and warp stabilizer it jumps between 1.9-2.5. You did the overclocking in bios? Sorry for asking stupid quenstions but i'm new in this overclocking world and i don't wanna do something wrong. My laptop only has 2 weeks.

 

No worries, we're here to help.

Daily driver as in...the multipliers that I use everyday, which is 4.3GHz. Like driving my car...I drive a particular one daily out of the others.



::iunlock::

 

Maybe i have to much voltage. i see my core vid is around 1.3-1.4, and other have something around 1.1

 

Can you undervolt the 6700hq?

 

If the difference is 400 bucks between a model with a 6700hq and 6820hk do you think its worth saving the money? Both machines would have a 1070.

 

Will the software you want to run benefit from a faster CPU? Do you have a spare $400 laying around? Personally, I wouldn't spend an extra $400 on the 6820HK unless you absolutely need the best performance possible and are willing to play around with overclocking.

 

It would primarily be used for games.

Sent from my SM-G930V using Tapatalk

 

It's definitely not worth it for games. Save the $400 and upgrade to a new one a year early or get a nice monitor or something.

 

The problem with ASUS, I suppose you're using a G752VS, is that the CPU power limit is very low and the voltage is set way too high. This results in a borked overclocked that interferes with the CPU performance. Temperature is also a big issue as the ASUS paste is not very high quality.

And yes, I did have the G752VS for a short time.

If you would like me to do a LM service on the laptop and overclock optimization, it is possible. I will PM you and we can discuss in private.

Yes.

Difference is small right now, but with upcoming games using more and more CPU power (async, DX12) the 6700HQ is going to fall flat on its face. And with Skylake's meager IPC improvement, even an older 37xx Ivy Bridge and 4700MQ Haswell will outperform it slightly.

If you're going to keep the laptop for an extended period of time I recommend the 6820HK, else go with 6700HQ and sell it within a year or so.

 

6820HK is about a 17-22% increase in performance. Depending on your POV, not very groundbreaking

 

Not if you can actually push it to 4.5GHz

http://www.3dmark.com/fs/11031457

 

Is this sustainable/stable?

 

On the 17 it might be, the 15 gets too toasty in my preference.

 

A recommendation is to remember the 6820 has an advantage with having "potential" power. There's nothing wrong with running a stock setup on 99% of all of the games you will play and maybe 90% of applications you use. Games that are more CPU dependent now and in the future can be tweaked so simply with this CPU and then it doesn't have to be run daily. If you are really into benchmarking then pushing and cooling the CPU will be of upmost importance. So if you aren't a truly knowledgeable enthusiast bencher, there's truly no need to be running at 4.5ghz for any gaming or general purposes. These are BGA computers with no upgrade paths sadly...

 

Kaby Lake out on these models too w/refresh soon I bet lol

 

BF1/The Division will really stress your cpu.

 

Does b1 stress the cpu at 1440p to make it cpu limited though in that one needs to OC though? I just ran a game of multi-player stock clocks to see and I was over 100fps so I'd have to go bench to see how many more fps I would get on the same match. However when you are over 100fps I wouldn't say one needs to overclock the cpu. I did say maybe there were a very few amount of games an overclock is needed today but not many. For me, BF1 is not one of them. If anything Crysis 3 benefits from a cpu overclock much better. The Division may be one too but I don't have it.

 

Really it's physics, tesselation, and particle-heavy games that benefit from the CPU boost. These things are becoming more and more commonplace in games as time goes by, so being able to clock up your CPU is absolutely useful, especially considering the relative weakness of the 6700HQ comparatively.

BF1 is CPU-heavy because it's physics driven, especially considering the destructible environments. The Division also features partially destructible environments, however what really taxes the CPU on that game are the particles and visual effects to provide ambiance to the environment.

 

Quote below describes it pretty well