i7 6700k bottlenecking a GTX 1080 at 1080p?

matthewbdp · Sep 20, 2018

Currently looking to upgrade my CPU since I have an i5 6600k (OC to 4.6GHz) and a 1080. GPU usage is currently being limited at around 60% in a lot of games.

I run at 1080p, 144hz but always want to push out high framerates above the 144 mark.

Just wanted to know whether a 6700k would be a good option or whether spending more on a 7700k would be ideal. Would selling the 1080 and buying a 1070 even be a good option? Or is this stupid?

mdd1963 · Sep 20, 2018

a 6700K at 4.6 GHz on all cores will perform about identically to a 7700K at same clock speeds, which according to the comparisons I've seen, about matches the 8400 in most games, and comes in just a tad behind the 8600K and 8700K...unless streaming is thrown in, then 4c/8t struggles a bit more than 6 or 8 real cores.

animemangamer · Sep 20, 2018

This was shared around the threads:

According to this there shouldn't be any bottleneck between 6700k and 1080.

matthewbdp · Sep 20, 2018

mdd1963 :

Think you misread. I'm on a 6600k at 4.6GHz, might be looking to upgrade to a 6700k.

mdd1963 · Sep 20, 2018

6700K / 7700K rather expensive in light of on-sake Z370 boards and i5-8600K prices...

larrycumming · Sep 20, 2018

the chart doesn't indicate whether those tests were done at stock frequencies or overclocked?

animemangamer :

animemangamer · Sep 20, 2018

larrycumming :

They're stock, and overclocking just to meet the needs of not bottlenecking the GPU seems a bad set up in the first place.

animemangamer · Sep 20, 2018

mdd1963 :

I agree with mdd1963 that upgrading the CPU because the Z170 is limiting you to Sky Lake upgrades is not ideal nor is it worth it to get Z270/Kaby Lake either. If you are truly planning an upgrade then might as well move on to 8th gen with a 8600k/Z370. You can move your DDR4 ram anyway.

cryoburner · Sep 20, 2018

matthewbdp :

This is not going to happen, even with the fastest CPUs available today. In some games that are less demanding on the CPU, staying above 144fps is certainly possible, but in many others, even an overclocked i7-8700k isn't going to keep you above 144fps, and some games won't even manage to average much more than 100fps. At 1080p, any processor will bottleneck a GTX 1080 to some degree. If you want to utilize the extra performance, you could enable supersampling (Dynamic Super Resolution) to smooth the visuals a bit, but you're not likely to be able to raise frame rates very much from what you're already getting through a hardware upgrade. Moving to a weaker card like a GTX 1070 is obviously not going to help frame rates either.

larrycumming · Sep 21, 2018

Well, overclocking will make a big difference and will likely put all those i7 processors on par to support 1080 ti cards and titan x/xp, especialy in those Haswell-E / Broadwell-E systems with soldered TIM. or others who delid.

Who would buy a 8700K to run stock?

animemangamer :

animemangamer · Sep 21, 2018

larrycumming :

I assume not base frequency stock but max turbo frequency stock.

matthewbdp · Sep 21, 2018

animemangamer :

Thanks for the advice. This is likely what I'll end up doing; buying a Z370 and a 8600k. Thanks for all your help.

animemangamer · Sep 21, 2018

matthewbdp :

I pretty much only paid for the Z370 Motherboard when I was upgrading from Sky to Coffee. You could try selling yours too to offset the cost of upgrading.

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