New build 1151 8700K or X299 i9 7900X

[sczvanguard]

Hi guys, first day on forum, I pose a question, I'm gonna do a new build mainly for gaming but video editing runs a close second, at first I was gonna run an 8700k, msi Z370 Godlike gaming , 16GB ram, x2 gtx 1080 sli, also 250gb M.2 drive for windows 10, x2 Seagate barracouda pro's 4Tb & 8Tb, one to hold games the other for raw video footage, Elgato HD60 pro, creative soundblaster Z sound card. However, im aware that 8700k only utilizes 28 pci lanes, i have doubts it would be able to run and optimize all this. Or do I need to move to the intel i9 7900X with X299 40 lanes setup instead which would allow me to optimize more, but at extra cost, which is the best way to go for my needs, Your thoughts guys please.
P.S.. all running with Acer predator 27" Gsync monitor at 165 Hz.

 

[fredfinks]

Are you sure you want SLI?
the power draw, the heat, the stuttering & glitching problems? The reason i dont have it is not due to $.
First find out what software you going to be using & then see what gear is recommended on their forums.

Its not the lanes you need to worry about but the cpu cores /threads

 

[sczvanguard]

Are you sure you want SLI?
the power draw, the heat, the stuttering & glitching problems? The reason i dont have it is not due to $.
First find out what software you going to be using & then see what gear is recommended on their forums.

Its not the lanes you need to worry about but the cpu cores /threads

Well they are both liquid cooled 8gb hybrids from evga so cooling is not a problem, also the case is evga dg-87 with x8 120mm or 140mm fans, it's a huge case with great airflow, also gaming will take place on a acer 27" gsync 165hz monitor, so that's most problems sorted. Windows 10 home, gaming on steam platform. Vid editing probably coral editing suite 11 or 12.

 

[sczvanguard]

I have since discovered that the 8700k holds 16 pci lanes + another 24 when hooked up to the msi Z370 Godlike mb, so that gives me 40 pci lanes which will be enough with ×2 evga gtx 1080 hybrids liquid cooled in sli, power by corsair hxi 1000w 80 + platinum, so gonna go with this as I think x2 1080 Ti would be to much power & speed for the 8700k and would start to bottleneck, seen a lot of x2 1080 Ti setups which never get gpu load above 60%.

 

[mlambert890]

I have since discovered that the 8700k holds 16 pci lanes + another 24 when hooked up to the msi Z370 Godlike mb, so that gives me 40 pci lanes which will be enough with ×2 evga gtx 1080 hybrids liquid cooled in sli, power by corsair hxi 1000w 80 + platinum, so gonna go with this as I think x2 1080 Ti would be to much power & speed for the 8700k and would start to bottleneck, seen a lot of x2 1080 Ti setups which never get gpu load above 60%.

Ancient thread, but this is such a horrible last word on this it can’t be left as is.

NO WAY is there a CPU bottleneck in the ONLY scenario for which you’d consider 1080Ti SLI today which is 4K gaming. I’ve run 1080Ti SLI 4K since release. The notion that 1 1080Ti is “fine” for 4K is BS parroted by people who don’t own one repeating what they hear.

Even with SLI, you can’t always max all details at 4K on 1080Ti. The CPU is *far* less important and, where it matters, fast single core matters much more.

Let me repeat that for clairty. There is *no game today* in which 4k ultra settings is *CPU bottlenecked* by 1080Ti SLI

As for PCIE lanes, the 8700K and Z370 will only allow SLI in x8 as only the CPU lanes work for the GPU. The chipset lanes share the equivalent of 1 x4 link via DMI. x8, however, is fine. The 1080Ti at 4k ultra does not saturate a PCIE 3 x8 link. Any evidence to the contrary is either old and about PCIE *2*, or is one of the one pro reviews that somehow drew a different conclusion (and even that one showed negligible gain)

That said, the 8700K overclocks well, matches or edges out the 7700K single core, and has 6 cores. It’s currently pretty much the best *pure gaming* CPU you can get

The reason to go X299 is if you truly need more PCIE lanes (non gaming), or need >6 cores (highly threaded compute)

 

[fredfinks]

Ancient thread, but this is such a horrible last word on this it can’t be left as is.

NO WAY is there a CPU bottleneck in the ONLY scenario for which you’d consider 1080Ti SLI today which is 4K gaming. I’ve run 1080Ti SLI 4K since release. The notion that 1 1080Ti is “fine” for 4K is BS parroted by people who don’t own one repeating what they hear.

Concur, which is why i rave about 1440p.
I only want one GPU.
With a 32" screen, desktop screen size is near limit. You need 1440p res for that size so you dont see individual pixels (it has same DPI as 1080p at 24")
From now on - id prefer to have better models trextures & lighting than extra pixels.
We dont need extra pixels, we have decent DPI. Put all that GPU power to make realistic worlds. Pong or minecraft will still look the same at 100000k resolution. What makes the diff from here on out is models, textures & lighting. Thats not even getting into refresh rates.