Help! Need to upgrade my existing PC, need some suggestions from expert.

[FocusedSG]

Hi, I’m planning to upgrade my current gaming/streaming rig to a 1080 Ti from 1070 Ti. However, I’m afraid that my existing i5 8600K will cause bottlenecking. My i5 8600K is running at factory default. And I have a 600W PSU. I’m upgrading because my monitor is 144Hz and I want to fully utilise it but my 1070 Ti was only able to get around 100-120 FPS for some of the triple A titles like GTA V and Watch_Dogs 2. Any suggestion on the build, will it cause bottlenecking or any issue? Btw I have 16GB of DDR4 ram @2400Mhz and Gigabyte B360M HD3 Motherboard.

[lufihengr]

Here's a benchmark with a GTX 1080.

As you can see, overclocking gave better results and you might be able to get 144 fps with a 1080ti. The problem is that with the B360 chipset you can't really overclock. In short, it might bottleneck sometimes and to minimise it you would need a motherboard with a Z370 chipset.

[TetraSky]

22 minutes ago, FocusedSG said:

I’m upgrading because my monitor is 144Hz and I want to fully utilise it but my 1070 Ti was only able to get around 100-120 FPS

You'll NEVER reach that 144Hz framerate unless you reduce the quality of the visuals or play older games.
Even a 1080 Ti or the latest 2080 will barely get close to that number when you max out your settings and it will only get worse from there with the newer games.
 

Your current 100-120FPS are more than enough for gaming, you don't need to go above and beyond 144fps to have a good experience. 
That 144Hz is for competitive gaming, where players usually reduce their visuals to the lowest possible settings anyway, it's not meant to be playing triple A games at the highest possible settings because that's just impossible with current hardware in the latest games.

 

This is upgrading just for the sake of upgrading and 100% not worth it.

 

But if you don't care about it all and you're set into buying a new card regardless, while your CPU won't "really" bottleneck the card, you'd still gain a few extra fps by overclocking it. But you can't. Because you have a B360 motherboard.

[Crunken]

it's not a huge difference between a 1070ti and a 1080ti, lower some settings ingame that you wont even notice, look at some optimization guide's on youtube for those games and you can save yourself some money and upgrade later when it's a bigger upgrade. and if you want to upgrade something right now you can always get some more/better ssd's or an i7 

[FocusedSG]

Hmm... i guess i would have to change my Motherboard...

[JammyCreedog]

Yes, a Z370 board will allow you to overclock your 8600k.  You can also re-sell your B360 board for some cash back.

 

Have you downloaded MSI afterburner to tune your graphics card?

[RAM555789]

Theres nothing wrong with bottle necking, as long as its not crazy. Almost always etiher the GPU is going to limit the CPUs frame limit or the GPU is putting out more frames than the CPU can keep up with. As long as you are getting an fps you a fine with at the desired resolution you don't need to over worry about bottlenecking. 

[TetraSky]

8 minutes ago, FocusedSG said:

Hmm... i guess i would have to change my Motherboard...

At that point you're entering the "is it even worth it territory?" and the answer to that in this case, is no. No it isn't.
Even if you do change the motherboard in order to overclock, you'll gain at most 10fps in some games(not all of them). It will still be far below 144. You will NEVER reach that threshold using you play on the lowest settings.

Usually, when one change their motherboard, it's because they are also changing their CPU. Your current build could easily last for the next two years or so, when newer/better hardware is available.

 

But if you have money literally burning a hole in your pocket and you can't think of a better use for it than a pointless upgrade, who am I to tell you want to do with it.

[Princess Luna]

Actually reaching 144hz is more CPU intensive than GPU, even a GTX 1050 can play at 144fps if you tune down the graphics and resolution down enough but if your CPU isn't fast enough it'll be the bottleneck always.

 

As pointed out the problem here is the odd choice of slow memory and a locked chipset motherboard for an overclockable i5... if you don't want to overclock you should go with the i7 8700 instead, as it offers Hyper-Threading, higher Turbo Boost clocks while keeping lower TDP and the larger level 3 cache.