i7 6700k vs i7 5820k

[szczurek512]

Hi everyone!

 

I am not sure which processor to chose.

 

It will be used for gaming and game design which I am currently studding in college. Game design include; 3D modelling, procedural programming, event driven programming and designing games in 3D game engines.

 

I have 2 candidates for my CPU. One is i7 6700k for £300 and i7 5820k for £350. Now. Is it worth to sacrifice newer architecture and overall better single threaded and game performance of 6700k for 2 additional cores in 5820k? How exactly would I benefit in game designing from 2 additional cores? Would overclocked i7 5820k to 4Ghz run as well as i7 6700k in games? I'm asking last question because I've heard (From LTT video: Intel 5820k vs 6700k CPU Showdown) that 6700k still can be slightly faster because of higher number of instructions per clock.

[79wjd]

In gaming the 6700k is better. A 5820k will easily be able to run any games you throw at it (it won't be the difference between being playable and not, but a 6700k will technically perform a bit better). 

 

In multithreaded tasks (if the programs are properly optimized to take advantage of 6c/12t, then a 5820k will bhe roughly 30% faster assuming the 5820k is at 4.2ghz and the 6700k is at 4.5ghz).

[Guest]

I would go with 5820k

Rendering 3D, designing will benefit a lot from multi core processors

 

Gaming only 6700k is the best

[PRTI]

5820k.

[PRTI]

5820k.

[Blackhole890]

dunno but if its for gaming and modeling i would go for the 6700k or you can wait too for the new kaby lake, with 10nm, if you dont wanna wait go for 6700k if you play more than rendering and working, also you can save 50 bucks for buy a better cooler or whatever you want. but if you're going work hard on rendering 3d models etc, then go for 5820k but i would not recommend because skylake has more future

[79wjd]

1 minute ago, Blackhole890 said:

dunno but if its for gaming and modeling i would go for the 6700k or you can wait too for the new kaby lake, with 10nm, if you dont wanna wait go for 6700k if you play more than rendering and working, also you can save 50 bucks for buy a better cooler and oc it

Kaby Lake is also 14nmm. Kaby Lake is just a refresh of Skylake (and will barely be better -- think between Haswell Refresh and Broadwell compared to Haswell). So no, there's no point in waiting for Kaby Lake. 

[Blackhole890]

Just now, djdwosk97 said:

Kaby Lake is also 14nmm. Kaby Lake is just a refresh of Skylake (and will barely be better -- think between Haswell Refresh and Broadwell compared to Haswell). So no, there's no point in waiting for Kaby Lake. 

just checked and yeah, i will be 14nm but as like it says, it will perform better at rendering 4k (or thats what it says)

[Matias_Chambers]

2 minutes ago, djdwosk97 said:

Kaby Lake is also 14nmm. Kaby Lake is just a refresh of Skylake (and will barely be better -- think between Haswell Refresh and Broadwell compared to Haswell). So no, there's no point in waiting for Kaby Lake. 

Depending on how good Zen is, Intel might be forced to produce something that will perform significantly better than last gen. 

[DildorTheDecent]

5820K. Quad channel + the extra cores and threads. 

 

IPC is made up easily with an overclock. 

[Trav_X]

5820k if you're planning on doing rendering and other workstation like tasks. The 5820k will do just fine in gaming, OC it a little and you'll be just as good as a 6700k, the difference is marginal in games between them.

[79wjd]

2 minutes ago, Matias_Chambers said:

Depending on how good Zen is, Intel might be forced to produce something that will perform significantly better than last gen. 

Even if Zen is a monster it will take Intel at least a year to respond. Plus we already know that Zen has IPC similar to BRoadwell -- so Zen isn't likely to destroy Intel. 

1 minute ago, DildorTheDecent said:

5820K. Quad channel + the extra cores and threads. 

 

IPC is made up easily with an overclock. 

It depends if the programs are properly optimized for more than 4 cores. Adobe applications, for example, don't benefit much from over 4 cores (a 6700k@4.5ghz is <10% faster than a 5820k @ 4.2ghz when the difference should be more like 30%). 

2 minutes ago, Blackhole890 said:

just checked and yeah, i will be 14nm but as like it says, it will perform better at rendering 4k (or thats what it says)

Yeah, it will be like 5% faster as that will be the IPC difference between Skylake and Kaby Lake -- i.e. not worth waiting for. 

[DildorTheDecent]

Just now, djdwosk97 said:

It depends if the programs are properly optimized for more than 4 cores. Adobe applications, for example, don't benefit much from over 4 cores (a 6700k@4.5ghz is <10% faster than a 5820k @ 4.2ghz when the difference should be more like 30%). 

right, sure. 

 

X99 seems like a much better deal though. Especially if picked up a 5820K closer to the price of a 6700K. Which isn't too hard rn. 

 

4.2GHz is rather weak for a 5820K too. 

[done12many2]

1 minute ago, DildorTheDecent said:

4.2GHz is rather weak for a 5820K too. 

 

I would agree with this.  Very weak.

[79wjd]

1 minute ago, DildorTheDecent said:

right, sure. 

 

X99 seems like a much better deal though. Especially if picked up a 5820K closer to the price of a 6700K. Which isn't too hard rn. 

 

4.2GHz is rather weak for a 5820K too. 

X99 would probab;y be about $100 more, so I would probably go with a 5820k as (in theory) it should last longer than a 6700k as thigns become more and more threaded, so the benefit of the 6700k (better IPC) should fall off over time compared to the extra cores. So it depends a lot on what kind of upgrade cycle you're looking towards. For an extra $100 you get 30% better performance (in the long run -- presumably). 

 

But as of right now, in the immediate future it depends a lot on what programs you use. 

 

As is 4.5ghz on a 6700k. But both are fair/decent assumptions, since again you never know what kind of overclock you'll be able to get.

[szczurek512]

WOW. That is the fastest reply ever! Linus Tech Tips community is really good. Thanks for that allot. I forgot to mention that we have computers with 10 core Xeons at college so theoretically I could render bigger projects at those machines, but having 6 core machine for myself would be very beneficial as I'm not playing this much during school days so I think I will choose overclocked 5820k.