Z390 and 8086K or 9700K

[WebMaximus]

Hey guys!

Watching all YouTube videos from Tom and love it but haven't been in here for ages! Wasn't even sure if I still had an account

I currently have a 6700K @ 4.5GHz and I'm now considering replacing it.

I've decided to go with the MSI Z390 Ace motherboard but for the CPU I'm still on the fence. First I figured I would get the 9700K but since my main goal upgrading my system will be to end up with the CPU running as fast as possible I figured maybe going with the 8086K would be a safer bet.

Feels a bit so so going one generation back when building a new system but after doing some research I've found the chances for getting a golden 9700K that will do 5+ GHz stable on all cores are not exactly 100%...actually far from it. Looking at the 8086K on the other hand, I read 100% of those chips will do 5GHz and about 92% of them will do 5.1GHz.

So, with these odds in mind I'm tempted to go with the 8086K but figured I would throw in a question here first to see what you have to say about it.

Can also mention that I'm mainly using my PC for X-Plane which isn't exactly optimized to make the best possible use of today's hardware but instead relies heavily on how fast your CPU is running. Hence my wishes for a fast CPU.

Thanks in advance for any tips or input!

 

[WillSK]

Hey guys!

Watching all YouTube videos from Tom and love it but haven't been in here for ages! Wasn't even sure if I still had an account

I currently have a 6700K @ 4.5GHz and I'm now considering replacing it.

I've decided to go with the MSI Z390 Ace motherboard but for the CPU I'm still on the fence. First I figured I would get the 9700K but since my main goal upgrading my system will be to end up with the CPU running as fast as possible I figured maybe going with the 8086K would be a safer bet.

Feels a bit so so going one generation back when building a new system but after doing some research I've found the chances for getting a golden 9700K that will do 5+ GHz stable on all cores are not exactly 100%...actually far from it. Looking at the 8086K on the other hand, I read 100% of those chips will do 5GHz and about 92% of them will do 5.1GHz.

So, with these odds in mind I'm tempted to go with the 8086K but figured I would throw in a question here first to see what you have to say about it.

Can also mention that I'm mainly using my PC for X-Plane which isn't exactly optimized to make the best possible use of today's hardware but instead relies heavily on how fast your CPU is running. Hence my wishes for a fast CPU.

Thanks in advance for any tips or input!

Have you cinsidered holding out for Ryzen 3000 series? This would then mean you should see a price drop on the 8086/9700k if you still decide to go with one of those but you also may see a chip you prefer in the 3000 series

 

[WebMaximus]

The thing is I recently got myself a Samsung Odyssey Plus and main reason for this upgrade is to allow for better performance in VR.

So, with this said I guess the short answer is I'm not willing to sit and wait but want to be able to enjoy my new VR headset NOW

My main concern at this point is more if it would be immensely stupid to get an 8086K for this Z390 motherboard rather than a 9700K.

 

[looz]

I see absolutely no reason to replace the 6700K. If you're constrained by single core performance, moving up to 5GHz from 4.5 is just a tenth faster.


And the new AMD platform is probably not going to beat the 6700K in gaming performance.

 

[grec]

Yep, it's worth noting the 6700K, the 8086K and the 9700K are all 14nm Skylake chips, personally I'd say they all come under the same generation with the latter two being minor revisions to nudge clock speed & core count, so the IPC of all three chips are roughly identical. If you're not going to use the extra cores, then I doubt the ~10% gaming improvement you get from clock speed improvements over a stock 6700K will be worthwhile, obviously if it's an OC'd 6700K those improvements will be smaller.

Ryzen3000 isn't likely to do much better with regards to gaming performance, best case scenario is it does roughly the same probably.

 

[WebMaximus]

I do agree it's a lot of money for very little but I'm currently only a couple of FPS from having a smooth experience in VR and was hoping the extra Hz could give me those.

Guess I'll give it a go. Will be buying from a store with a generous return policy meaning I will be able to take the stuff back if I'm not happy.

 

[looz]

What's your current memory configuration? Even overclocking your current DDR might work, or buying some b-die.

 

[tinytomlogan]

Ryzen 3000 will be much later in the year. - Ive already said too much.....

 

[WebMaximus]

My current memory config is 16 GB 3000MHz CL15 GSkill RAM but actually just got back home with a bag full of fun stuff...

Went with the 8086K, the MSI Z390 Ace, a Corsair Hydro H100i RGB Platinum and got myself 32 GB 3200MHz Corsair Venegeance RGB RAM as well to match the H100i fans.

So, will be a fun evening here and keeping my fingers crossed I'll be pleased with the result.

Perfect timing as well since "she who must be obeyed" is working late tonight

 

[g0ggles1994]

Ryzen 3000 will be much later in the year. - Ive already said too much.....

Oh really?......
To be honest though, I think a lot of people expected that since AMD only showed of an engineering sample at CES and didn't confirm the lineup specs I'd honestly put a Q3 - Q4 release window for Ryzen 3000

 

[WebMaximus]

So here's a stupid question I'm sure but I just realized my Corsair HX850W which served me well for many years only comes with one 8pin connector for the motherboard while the MSI MEG Z390 ACE takes two.

Does this mean I need to get a new PSU which has 2 8pin connectors?

I read elsewhere someone claiming you don't need that second 8pin connector unless you're going for extreme overclocking.

Not sure what extreme would mean, 7GHz and upwards or even the 5+ GHz I'm hoping for?

The reason I went with the Ace in the first place was I wanted a powerful and high quality motherboard to make sure it wouldn't turn out to be the weakest link in the chain holding me back when trying to achieve a good overclock.

So, for that reason it would feel a bit sad not being able to use its full potential now.

Hmm...

Thanks for any advice.

 

[looz]

A single 8pin should be plenty for the 8086K. The second 8pin is really just meant for very high 9900K overclocks, and for instance (almost?) all reviews use motherboards with a single 8pin for the 8086K.

 

[WebMaximus]

Just checked the manual and it says you need to connect all power connectors to ensure proper operation of the motherboard.

Not to say it wouldn't work with only CPU_PWR1 connected but at the same time as mentioned in my previous post, it would feel a bit sad spending money on this kind of motherboard and then not fully utilize its full potential.

As for the CPU I'm still a bit on the fence. I do want to maximize my chances to achieve a good overclock but at the same time, it would feel better to get the most current generation.

Guess I have to do some more thinking.

 

[AlienALX]

Oh really?......
To be honest though, I think a lot of people expected that since AMD only showed of an engineering sample at CES and didn't confirm the lineup specs I'd honestly put a Q3 - Q4 release window for Ryzen 3000

To be fair the 2000 series hasn't been around that long yet. So unless it saves AMD money to bash them out so fast (lol) then it would make sense to prolong it a bit longer.

 

[grec]

A single 8-pin EPS connector can supply up to 288W, whereas an 8086K @5Ghz on all cores consumes about 150W, beyond that 5.2Ghz would likely need around 200W and it would scale sharply above that, but beyond 200W's temperature will quickly become the limiting factor to sustained use anyways, if your silicon is even stable at clocks beyond there.

If your motherboard splits the load across the two connectors, you could technically argue that was a better connection as it reduces the per-pin current load, but it's still so far under spec that it's unlikely to have any real world difference so it's not worth replacing a PSU for it or anything.

 

[WebMaximus]

That's great info, many thanks!