upgrade intel i7 4790k to Intel i7-7820X

[BitMaster]

Some say it will do 5.3G on water ...hmmm..let's wait 'n' see the actual thing in the wild

[Lenux]

I wonder why so many people recommend not to upgrade from i7 4790k to 8700 k

8700 k should be at least 25 % faster than i7 4790k

[BitMaster]

because it wont matter for DCS unless you play at 1080p and demand fps way over 150.

 

As you can overclock both CPU's, both are plenty for DCS and the bottleneck will be the GPU as you climb up the ladder with resolution and VR. Any 2600k @ 4.8G is still plenty.

Your 4790k should reach 4.7G in oc..so even if the 8700k goes 5.3G its only 600 MHz on top of already high enough imho. I would then rather take care for more PCIe, more GPU, more RAM etc..

 

Sure, the board and chipset offer other candy as well, USB-C, NVMe, more PCIe lanes, etc..

At the end of the day, DCS doesnt care too much about that candy.

 

If I had a 4790k I think I would wait for Ryzen2.

 

If you have too much mOney, well..sure..go for it, it is definitely faster ;)

[BeastyBaiter]

It matters if you play in VR though, VR needs around 150-170 fps on monitor to get 90 fps in VR. Additionally, in DCS 1.5 there are areas that absolutely tank performance. I did a Ryzen 1600x review a while back here and though faster than an i5-4690 in single thread, even it was sub 60 fps in a few areas at low altitude. I'm actually looking at swapping my 1600x for an 8700k. I need the extra cores/threads of the 1600x compared to the 7700k, but I would like to be able to play DCS at 90 fps instead of 45. The 1600x falls just barely short of the required single thread performance to hit 90 in VR over NTTR while on the deck.

 

Admittedly all of this is due the game engine not taking advantage of the other 10 threads my CPU has, but it is the way it is at the moment. No telling when DCS will get updated to use CPU's more effectively.

[Pilotasso]

the 8700K is a beast of a CPU so much so it screws up people who got 8 cores on X299 platform.

 

It will be awesome for DCS but unless you have other applications to take advantage of more than 4 full cores I'd rather keep that 4790k and go for a better graphics card. A 1080Ti comes to mind.

[Gladman]

BeastyBaiter you don't need 90FPS for VR. See my specs in my signature.

 

 

To be honest, I get smooth FPS (probably 45) all day, every day. I never get nausea, I always have a good time, and its extremely rare that I get a noticeable stutter while playing. At that, the gains from a 8700K are mute.

[BeastyBaiter]

I don't need 90 fps, but I'd certainly like it. 45 fps doesn't make me ill, it's just fine in that respect. But I would like it a lot smoother. Also, though DCS 2.x will run 45 fps all day at very high settings (going ultra low doesn't have any impact on fps) about half the map in DCS 1.5 is completely unplayable in VR even in an empty mission due to the way the graphics engine works there. Last time I was on 104th, I exited the mission mid flight cause I was getting 12 fps in the middle of no where at high altitude with nothing going on within 50km of me. Admittedly that's just DCS 1.5 being DCS 1.5, but an 8700k at 5.0+ GHz might bump it from 12 fps to 22 fps. That's still kinda sorta playable. This is with a GTX 1080 TI btw.

 

In any case, it shouldn't be a hugely expensive swap. I expect I'll get a good price for the 1600x + mobo since it still crushes Intel in terms of value and is great for gaming in general. It's just DCS and to a lesser extent, BoS in VR where it struggles some. Both are due to the engines not being properly multi-threaded and not at all a fault in the CPU, but it is what it is. I hate calling such problems a CPU bottleneck as the CPU is definitely not being fully used. Can't really call it a CPU bottleneck when the CPU is running at 12% capacity.;)

[Lenux]

I have 3 options :)

GTX 1080 SLI

Upgrade to GTX 1080 Ti

Waiting for the Volta

[Gladman]

SLI isn't supported so its not an option.

Get a 1080Ti if you like but at this time without proper software support I don't think its worth the cash.

Waiting is your best path.

[Lenux]

" proper software support " ?

Do you mean the nVidia drivers ??

[Gladman]

No, I mean DCS code. Actual VR integration, multicore support, etc.

[David OC]

I think DCS will get better and more optimized for monitor and VR, the splitting of cores / threads is the hard part moving forward.

 

We had a good discussion about this a while back, this post below by c0ff is the only little bit of info I've seen about it and what ED could possibly do to help the sim without a full rewrite, not sure if it would be possible or even feasible to attempt a full rewrite for multi cores / threads for a sim like DCS?

 

what is being refactored/rewritten does use multi-threading where possible.

 

atm the major parts which do it are:

resource loading and other I/O (logging, input, ffb ...), integrity checking, sound

 

w/o rewriting the engine, splitting simulation into a separate thread from the graphics will benefit it most - which will be, in fact, the mentioned client-server approach, just inside the app.

 

The Post

 

The way I read this, ED is look into separating the threads in a similar way you can use a 2nd PC as a server to handle large SP missions, they plan on doing this inside “the app” itself.

 

I hope they can pull this off down the road, Not sure if these new 6 core, 10 core will greatly benifit from this type of update? Anything would help tho.

 

.

Edited September 26, 2017 by David OC

[BitMaster]

Finally there is consense about that there is no other way for DCS but going multithreaded.

 

I remember times when I got beaten for mentioning this unavoidable need LOoooL.

 

The client/server separation makes the most sense ! Looking forward to that ;)

[Pilotasso]

Join the club my friend :D

[hansangb]

" proper software support " ?

Do you mean the nVidia drivers ??

 

There are VR specific optimizations that are for NVidia only. I wish ED would take the time to optimize the game for Nvidia and AMD users.

 

But if I had to choose, DX12 should come first!

[Lenux]

Could anyone here with GTX 1080 Ti / 4k / share the graphics settings (printscreen would be best ) Normandy, please ?

Thank you

[blkspade]

The 7700K only has a 6.2% IPC advantage on the 4790K, by which the the 4790K @ 4.7 ties the 7700K stock. The 8700K is basically the same IPC as the 7700K, and getting it to 5Ghz requires water.

[BitMaster]

Out of the box, if you dont OC, there is hardly any IPC gain. Those 6.2% are half of a 11% OC in clock cycles for the 7700k-5G or 8700k-5.2G with good samples.

 

If you dont OC than the 8700K is the fastes Out-of-theBox in IPC.

If you OC than now none can be driven further than 8700K in IPC with water and delid, 5.2G was rocksolid at HardOCP for hours and hours of Small FFT's.

 

And if you own a 4790K that is well overclocked, say 4.8G, than there is hardly any reason to update for the CPU alone. NVMe and some other goodies may not be worth it for most

[Lenux]

I've decided to upgrade to GTX 1080 Ti, and i don't know which model

OC or stock ? Is it worth 100 euro more for the GeForce GTX 1080 Ti Aorus Xtreme ?

[Lenux]

I ordered the EVGA GTX 1080 Ti Ftw3

[David OC]

Could anyone here with GTX 1080 Ti / 4k / share the graphics settings (printscreen would be best ) Normandy, please ?

Thank you

 

Not 1080ti, try these settings tho, DCS has problems with MSAA / Anisotropic Filtering at the moment when using Deferred Shading for good frames etc.

 

VinnieJones use these setting and took some screenshots at 4k, you can see them here.

 

These are my settings for DCS 2.1 at the moment, DCS is going to be more optimized moving forward and I can turn these settings up more in different type of smaller missions, the settings and screenshot below are from the new Spitfire Campaign with quite a few AI and objects etc. I was trying to find a good balance here.

 

I only have the 1070, CPU overclocked at 4.9 when flying this mission. Frames are from 55 to 100 FPS. I also have Gsync which helps smooth things out. Try these settings for a start and tweak from there, it will change as ED makes updates.

 

Edit. This was at 2560 x 1440P screen res.

 

 

 

Spitfire Campaign Screenshot

 

 

[Lenux]

Upgraded from 1080 to 1080 ti, I'm more than happy

[Rangi]

Upgraded from 1080 to 1080 ti, I'm more than happy

 

I am more than jealous....

[Buckeye]

Upgraded from 1080 to 1080 ti, I'm more than happy

 

Went from SLI 970's to a 1080Ti after taking 2-2.5 years away from using my PC for anything...couldn't be happier.

 

IRT the OP, I've got a 4790K OC'ed at 4.7ghz, so I can't really see enough of a benefit in me upgrading when looking specifically at DCS performance to rationalize it.

[Lenux]

I couldn't reach 4,6 GHz or higher, but I will try again, soon