CPU Bottlenecked in BF4 (GTX 780, i5 2400 3.1ghz)

[andybrrr]

I just recently purchased a GTX 780 (DC2OC) and I also just got a 144hz/1ms screen to get the most out of the FPS it generates for Battlefield 4.

I notice now that I have 2 screens that when I play my GPU usage absolutely maxes at around 70%, while the CPU is necking at 98-100% the entire time.

I'm just trying to get a consistent 100~fps or so even outside, seeing as I paid the money for the card and screen.

How much faster would an i7-4770 be over my current hardware ? Do we know if BF4 utilises hyperthreading? How would a top-of-the-line AMD 8-core perform ? Most of the posts I've found have been dated in terms of their information and I am having trouble finding answers to these questions.

This of course would also mean I would have to change the board being a different socket.

Would a RAM upgrade be in order then? If so, what RAM is good ? I think 8GB of fast ram would suffice. My current RAM (reading off CPUz) says its 666mhz 9/9/9/24 .. I can see currently that 1600mhz RAM is commonplace.

Which leads me to my next question; what board to use ? I understand that should I want to go to an SLI setup in the future, I want to get a board that can do 8x/8x PCI-E or something ?

I found an asus board that looks like it'd do the job, a Z-87-A I believe it was.

Thank you

ps. I'm running Win7 64-bit ultimate OS if that is at all relevant to the necking issue.

 

[Swordkd]

I don't think your Sandy Bridge I5 is bottlenecking the 780 Gpu. You could upgrade, but I don't think you'll see a performance increase. You have ddr3 1333, and you are right, 1600mhz is the most common right now. I wouldn't bother buying a new set though. When you fully replace the motherboard/cpu later(when you will see a good performance increase) then I'd go ahead and buy new Ram. With what you are running now though, I'd expect that to be a new chipset that uses ddr4 though. You still have a very relevant motherboard/cpu combo.

 

[andybrrr]

Thank you for your response.

It does run quite well most of the time, I just still notice a slowing down when the framerate drops between 50-70 FPS on some maps .. so upgrade the CPU even though it is running at 100% vs the GPUs 70% will not see this problem alleviated ?

How do you tell my RAM is 1333mhz ?

Forgive my ignorance, I once knew lots about computers but am only just finding my way back again.

 

[Swordkd]

well, 667 doubled is 1333 or so, so there ya go. If you wanted to buy a new cpu/motherboard/ram, you could definitely sell your old one for some decent money. That's an option for ya.

 

[andybrrr]

Update:

Earlier this week I installed a 3770k @ 4.7ghz .. moved the neck right over .. GPU is now at 100% in BF4 (Ultra, 2xMSAA, PPAA off), CPU around 70% usage .. average framerate has leaped from around 40-70 to well over 100 (sometimes a solid 150 fps) now.

Thank you for your help
Andy B