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i7-8700K vs i9-7900x with 10 Cores for Gaming?

Post Date: 2018-04-05
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Caliell View Drop Down
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Topic: i7-8700K vs i9-7900x with 10 Cores for Gaming?
    Posted: 05 Apr 2018 at 9:03pm
I've been looking to buy new PC for sometime. I have asked about specific configurations earlier to some of tech support, but the second opinions seems to drastically vary.

There are tech support people who are pro i7-8700K and see that i9 does not perform drastically with SLI of 1080Tis any better.

However there was another tech who said that i9-8700X with 10 cores 3.30 GHz overclocked, with two 1080Tis in SLI will offer superb performance.

Obviously I am seeking for the lowest bidder and i7 is seems to be winning.

Is it worth better to have overclocked Coffee Lake with 6 Cores or overclocked i9 with 10 Cores, both CPUs having SLI of NVIDIA GTX 1080Ti x2 with 32 DDR 3200 RAM?

Which one is better?
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Caliell View Drop Down
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Posted: 05 Apr 2018 at 9:05pm
To add my current PC have stock SLI of 1080s x2, with overclocked i7-4930K overclocked to 4.2GHz with 64 GB of RAM. CPU is water cooled (although showing its age).

Is it worth to buy new Desktop in addition to that question?
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Caliell View Drop Down
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Posted: 05 Apr 2018 at 9:09pm
Just to also add "The Yardstick" to the question, I am trying to run ARMA 3 in full ULTRA settings with 500% Super sampling.

Even with my current GTX 1080 SLI and 4.2 Ghz overclock with 64 GB RAM for some reason that game at full, maxed out settings is still lagging behind at average of 25 FPS.

I am seeking Desktop that can surpass that.
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bprat22 View Drop Down
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Posts: 20391 		  Quote bprat22 Quote  Post ReplyReply bullet Posted: 06 Apr 2018 at 2:01am
If money is not a problem then the 7900x overclocked to a higher clock speed and adequate cooling is better.

For best bang for your bucks, the 8700k with its better single core performance will give you excellent gaming.   

Gaming primarily uses single core with a few cores used with some games, but at a lot less percentage.    

The 7900x has a much higher tdp, meaning more power to run it, more heat and more money needed for adequate cooling if you push the overclock.

8700k is all you need.

If I remember correctly, been awhile since I looked, Arma isn’t optimized as well as other games and might not make use of the best hardware, sli, etc.    Do some research on it because it’s been a few years since I looked into it.



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Posts: 20391 		  Quote bprat22 Quote  Post ReplyReply bullet Posted: 06 Apr 2018 at 2:03am
You didn’t mention your monitor resolution. Anything below 4k screen probably isn’t worth even upgrading. Your cpu is still very relevant.
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Cretae View Drop Down
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Posts: 7331 		  Quote Cretae Quote  Post ReplyReply bullet Posted: 06 Apr 2018 at 4:26am
Originally posted by bprat22

You didn’t mention your monitor resolution. Anything below 4k screen probably isn’t worth even upgrading. Your cpu is still very relevant.


I have to agree. What you have is still a monster to most folks. It must be ARMA 3 that's the performance culprit, I'm thinking. I'd hate to see you pull the trigger on a marginally better system and not get what you want out of it. Especially with the next gen GPUs right around the corner. You might find that a single 2080 will get you where you want to be with that game just because it gimps SLI. If the last gen is the measure, I expect the new GPUs to blow us all away.
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Caliell View Drop Down
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Posted: 06 Apr 2018 at 12:53pm
I have this guy.

https://www.amazon.com/gp/product/B072C7TNC5/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
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Cretae View Drop Down
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Posts: 7331 		  Quote Cretae Quote  Post ReplyReply bullet Posted: 08 Apr 2018 at 11:35am
What a fantastic experience that must be!
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Caliell View Drop Down
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Posted: 08 Apr 2018 at 10:19pm
Originally posted by Cretae

What a fantastic experience that must be!


Not really. it is not 4k monitor. Its just big. However I still would like to know how drastic of the change would it be if switched to 4k monitor with one of those latest CPUs?
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Posts: 7331 		  Quote Cretae Quote  Post ReplyReply bullet Posted: 09 Apr 2018 at 10:37am
Originally posted by bprat22

Your cpu is still very relevant.

What he's saying is that your current CPU is still good to go for 4k. Twin 1080s should give you all you need for top gaming at 4k also. That you can't get what you want out of ARMA 3 we think seems to be the fault of the game, not your hardware. Some games just don't seem to recognize there's even a second card present for some reason.

Originally posted by bprat22

If I remember correctly, been awhile since I looked, Arma isn’t optimized as well as other games and might not make use of the best hardware, sli, etc.    Do some research on it because it’s been a few years since I looked into it.


I'm not wanting to paint with too broad a brush, but it wouldn't be the first time an Eastern European publisher produced poorly optimized game code. (Metro 2033 and Last Light had to be "reduxed" for decent frames.)
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Caliell View Drop Down
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Posted: 11 Apr 2018 at 10:44am
Could anyone suggest a build for ARMA 3 at Ultra Settings that can have over 60 FPS at 400% super sampling?
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Posted: 12 Apr 2018 at 11:25pm
So... apparently my cooling system went out today and therefore possibly my CPU as well. There wasn't any smoke coming off from it, but every time I try to boot it, CPU seems to be running around 83 C / 181 F and if running, seems to work only at .24 GHz.

Is it burned out, or still salvagable?

tried to put on thermalake GP7 thermal grease. Computer still reports being overheated. Corsair stage one water cooling block got visible crack appearing on it and overheats before failsafe shut the whole system down.

Anyone could suggest either should I try to repair the new system by buying replacement water cooler since it is only 70 bucks from Best Buy and possibly new CPU, or should I finally give in and buy mobo that can socket much covetged i9 with 10 cores, then gut my computer for its 1500 watt power unit, and 1080s or simply do not even bother and buy new PC?


Edited by Caliell - 12 Apr 2018 at 11:45pm
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bprat22 View Drop Down
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Posts: 20391 		  Quote bprat22 Quote  Post ReplyReply bullet Posted: 13 Apr 2018 at 1:53am
I would try a new cpu cooler first.   Cpu will usually shutdown to save itself during an overheat.    Your temp reading could be inaccurate with the chip going into overheat right away.

If it still fails then the cpu could be fried, then a new cpu, mobo socket to match is the cheapest option.   New chipset also means new ram in some cases.

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Caliell View Drop Down
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Posts: 8 		  Quote Caliell Quote  Post ReplyReply bullet Posted: 13 Apr 2018 at 7:54am
To be honest I am highly tempted to buy new computer since I do not have 1080 Tis or even if I'll salvage the mobo and cpu with the new water cooler, I cannot socket newer cpus that I'd really like to get.
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Posts: 7331 		  Quote Cretae Quote  Post ReplyReply bullet Posted: 13 Apr 2018 at 10:18am
If you want to go that route, I'd advise you to bring over your 1080s for video. With the next gen on the horizon, and crypto-mining making the current cards crazy expensive, it's a really poor time to shop for high-end cards. Using what you have now seems to me to leave you all your options open when conditions are more favorable.
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