How much of a bottle neck, i7-4790 +3080?

slim01 · 1 Oct 2020 at 18:32

g67575 said:
The 4770k and 4970k get around 50fps (min. not average FPS) in challenging games like FF Shadowbringers, regardless of resolution. Other, perhaps better optimized games like Red Dead Redemption 2 get a minimum of 60 fps.

Strategy games which tax CPUs heavily - like pretty much all modern Total War games should also see a large benefit from upgrading to a CPU like the i7 9700k (or newer).

AMD's Zen CPUs could easily overtake or equl Intel perf. this year, they would only need about a 10% IPC boost vs the current gen in single threaded performance. Definately a good idea to wait for this as new CPUs will be announced very soon.

If you game at a higher fps than 60, at a lower res, a CPU upgrade would give you a boost.

If you can upgrade cheaply by the end of October, id say it could be worth it. Much better to wait until next year for DDR 5 to be released though, if you are gonna bother to replace the whole system.

This.

If your cpu is giving you 60fps minimums (in all games you're playing), and you're on a TV (almost certainly restricted to 60fps) then there's little to no benefit upgrading cpu atm for games, because well...your TV can't display any more than 60fps!

slim01 · 1 Oct 2020 at 18:34

g67575 said:
If you can upgrade cheaply by the end of October, id say it could be worth it. Much better to wait until next year for DDR 5 to be released though, if you are gonna bother to replace the whole system.

Hey that's weird... The above part of your message is not appearing on your post on my screen? Anyone else notice that?

Nutloose · 1 Oct 2020 at 21:13

WatchTower said:
I am sure it would be bottle necked by my i7 6800k. There is a slight bottle neck even if I went with the 2080 Ti. That's why I want to upgrad my entire rig.

I'm in the same boat, I have the i7 6800k 6 core on a ASUS X99-11A, reading on various websites that you can put in your CPU / GPUs combo and check for bottle necks, it shows the 2080 Ti as doing it.

My concern is also my power supply, I have a Corsair RM650 and I hope it will be enough To drive the 3080 combo, presently it’s running two SLI’d 970 STIX OC cards, so I hope the combination of the two cards will be about equal power consumption wise....

I want the card to run MSFS 2020 and hope it will be enough system wise to run it stutter free, failing that I wonder if putting a I7 6950x 10 core in would be a cheaper upgrade, without going the whole board CPU route.....

Newbie at this, any ideas?

Nutloose · 1 Oct 2020 at 21:19

I used this to check bottlenecks

https://pc-builds.com/calculator/

slim01 · 1 Oct 2020 at 21:20

Nutloose said:
I'm in the same boat, I have the i7 6800k 6 core on a ASUS X99-11A, reading on various websites that you can put in your CPU / GPUs combo and check for bottle necks, it shows the 2080 Ti as doing it.

My concern is also my power supply, I have a Corsair RM650 and I hope it will be enough To drive the 3080 combo, presently it’s running two SLI’d 970 STIX OC cards, so I hope the combination of the two cards will be about equal power consumption wise....

I want the card to run MSFS 2020 and hope it will be enough system wise to run it stutter free, failing that I wonder if putting a I7 6950x 10 core in would be a cheaper upgrade, without going the whole board CPU route.....

Newbie at this, any ideas?

Ms flight sim is like the worst culprit of needing a good cpu... Well, high ghz 4 core anyway. AFAIK it's like one of the only modern games to use just 4 cores and no extra threads. Very poorly optimised because it's been in development for so long apparently

SniperSmithy · 1 Oct 2020 at 21:22

My wife has my old 4770k @ 4.2ghz and in ubisoft games particularly the Assassin's Creed games the CPU is locked to 100% at 45 fps for 1440p ultra settings. In Origins it has a really awful hitch where the game just freezes for a good 5 seconds every minute or so. Not sure why because everything else plays nicely, do get CPU bottlenecks on the Witcher 3 in the cities at roughly 45fps too.

Nutloose · 1 Oct 2020 at 21:25

slim01 said:
Ms flight sim is like the worst culprit of needing a good cpu... Well, high ghz 4 core anyway. AFAIK it's like one of the only modern games to use just 4 cores and no extra threads. Very poorly optimised because it's been in development for so long apparently

Yes, but oddly you see some on utube running 10 cores and they are all running.

SniperSmithy · 1 Oct 2020 at 21:34

Nutloose said:
Yes, but oddly you see some on utube running 10 cores and they are all running.

They are running recording software etc so the other cores will probably be under load regardless.

Nutloose · 1 Oct 2020 at 21:44

That makes sense, what it really needs is DirectX 12 not 11

no_1_dave · 1 Oct 2020 at 22:41

Average frame rates won't change much at 4k when upgrading the CPU but minimum frame rate will go up which can make games feel a lot smoother

ScottMc · 2 Oct 2020 at 02:46

This may be useful : https://www.tomshardware.com/features/nvidia-geforce-rtx-3080-ampere-cpu-scaling-benchmarks

morta · 2 Oct 2020 at 14:55

-Gibby- said:
The 7700k does fall behind a bit in a few games, in my experience at 1440p, with a 7700k@5ghz in certain game modes the 7700k just ***** itself every now and then.

not at 4k though. which is the whole point to get this card in the first place. if i wanted to play games at 1440p i would get a 2080 super or something.

-Gibby- · 2 Oct 2020 at 16:25

morta said:
not at 4k though. which is the whole point to get this card in the first place. if i wanted to play games at 1440p i would get a 2080 super or something.

Oh for sure no bottlenecks at 4k, and as I said its like I think maybe 4 or 5 games I've noticed it? People really blow bottlenecks out of proportiong

morta · 2 Oct 2020 at 18:56

-Gibby- said:
Oh for sure no bottlenecks at 4k, and as I said its like I think maybe 4 or 5 games I've noticed it? People really blow bottlenecks out of proportiong

I know man..this guy sent in a question to this youtuber asking if he would get 4k max settings at 60fps in cyberpunk 2077 just buy upgrading his 980ti to a 3090 still being on a an 17 7700k. and his answer was dont get a 3090 to pair with a i7 7700k it will seriously bottleneck it..he said to get a better cpu first. I called him out saying he talks crap. if the guy was after high refresh rate at 1440p..then that would be a problem. but 4k 60...hardly any dif. you would not gain better performance buy keeping a 980ti and replacing a whole system anyways. he then goes on to make another video saying you will need an 8 core cpu to have a plesent experince with cyber punk 2077..

SeeNoWeevil · 2 Oct 2020 at 19:50

4K at 60Hz, someone could replace your cpu with a potato and you wouldn't notice a difference.

I must admit. I'm pretty tired of idiots telling people their cpu will bottleneck without even knowing what refresh/res they're running.

Rroff · 5 Nov 2020 at 23:31

BS Dave said:
Get a 6 core Xeon in that X79 rig of yours Rroff - i had an old mac pro chip that did 4.7 on very reasonable volts - you'll get one for £75

Ended up sticking a Xeon E5-1650 V2 in - wish I'd done it earlier initial impressions are very good - paid a little over the odds but it's supposedly nearly new and got a year warranty with it (and I plan on a whole system upgrade in about a year when hopefully things have shaken up a bit in the CPU world).

VID is 100mV lower than my 4820K, runs almost 5C cooler clock for clock core for core, took my memory's XMP which I always had to enter manually on my 4820K or it wasn't stable and so far been unable to find the limits of the IMC - my RAM taps out long before it does whereas on my 4820K it was the other way around.

For a laugh booted on my old 4.6GHz overclock but left voltages on stock and it actually booted and appears stable but not stress tested it - which is pretty incredible even if it is semi-stable - but people have spoken of these doing 4.7GHz on fairly low voltage like you mention.

BS Dave · 6 Nov 2020 at 10:15

Rroff said:
Ended up sticking a Xeon E5-1650 V2 in - wish I'd done it earlier initial impressions are very good - paid a little over the odds but it's supposedly nearly new and got a year warranty with it (and I plan on a whole system upgrade in about a year when hopefully things have shaken up a bit in the CPU world).

VID is 100mV lower than my 4820K, runs almost 5C cooler clock for clock core for core, took my memory's XMP which I always had to enter manually on my 4820K or it wasn't stable and so far been unable to find the limits of the IMC - my RAM taps out long before it does whereas on my 4820K it was the other way around.

For a laugh booted on my old 4.6GHz overclock but left voltages on stock and it actually booted and appears stable but not stress tested it - which is pretty incredible even if it is semi-stable - but people have spoken of these doing 4.7GHz on fairly low voltage like you mention.

I think that’s what I had too. If you get a Samsung NVME drive they have an option rom that lets them boot even without the code in the bios or csm mode enabled, at least I could on my old rampage iv formula.

Rroff · 6 Nov 2020 at 18:44

BS Dave said:
I think that’s what I had too. If you get a Samsung NVME drive they have an option rom that lets them boot even without the code in the bios or csm mode enabled, at least I could on my old rampage iv formula.

With the Creative AE-5 driver not sure there is much benefit to a faster boot drive :s will have to dig into that sometime see why it is so slow loading compared to anything else.

NVME on Windows 7 is a bit of a pain as well and one of the reasons I went with the Xeon is I don't intend changing this machine to 10 unless they make some vast improvements.

Rroff · 12 Nov 2020 at 03:07

This chip is a monster - haven't found the exact limits yet but it clocks like there is no tomorrow without even touching volts - now I have a dilemma as I've been using a large passive heatsink lately to keep noise down but it heat soaks eventually and there is probably much more to come from this CPU with an active cooler.

Rroff · 9 Dec 2020 at 23:01

Still haven't found the limits of this chip and not in an ideal setup to run it maxed out really either.

With just auto voltage on the vcore (not one of those crazy ones that adds silly volts) and LLC on high, no other settings changed it will boot into the BIOS and do basic Prime runs from a boot USB up to 5GHz multi all core (not tried higher) though it won't boot into Windows above 4.5GHz with just those settings - immediately says corrupt or missing file the moment the BIOS hands off to Windows. This UD3 1.1 motherboard and my current cooling setup isn't doing it justice.

It does 4.7GHz stable easy with a minor voltage increase over the auto level but my current cooling isn't really adequate.