FPS Drops

[Mcceag]

This has been a problem with some games I play recently. I just got a new graphics card and have been told I wont be needing another one for some time. as far as I know I should be able to run just about every game I own with no problems. and for a while its all good. runs at a perfect 60 fps and sometimes 100+ depending on the game and if i choose not to cap it. yet I seem to have this issue where is has to drop to 30 fps for a good chunk of time long enough to really make playing difficult. one of my more tech savvy friends thinks its just a clean out some dust problem but I'd like to hear what others are saying.
Games Im playing recently that have this fps problem include:Just Cause3,TF2, Battlefield 1,and ME:Andromeda.

Specs:
-AMD FX 8320 8core processor ~3.5GHz
-16384MB Ram
-NVIDIA geForece GTX 1080 Ti
if theres anything else I should be posting help me help you and Ill do what I can but im not all that good with this so bare with me(for ex. I can't find what kind of motherboard I have.

Any help would be great.

[Arya]

Your CPU isn't a match for your GPU, this is causing an effect called Bottlenecking. Which is causing your FPS drops.

To put it simply, your GPU is making easy work of Video Rendering but the CPU is struggling with processing the game code. Most of the time it'll be fine, when the CPU load is relatively light you'll get amazing FPS. But once the CPU gets snowed under, your FPS will tank. This is called Bottleneck, and alas I can't I can't offer an affordable or easy fix.

Running this system at it's full potential means upgrading the CPU, but your Motherboard doesn't have any CPUs available that can handle your card. You're looking at a complete replacement of the Motherboard and RAM, as well as the CPU. And that's going to be expensive, possibly up to $1K.

Enthusiast spec GPUs like this need to be paired with an extremely high-powered CPU. Matching a 1080Ti means a Ryzen 2700 or Intel K-Series. I wouldn't recommend anything less.

[hawkeye]

The single thread speed of your cpu is too slow.

https://www.cpubenchmark.net/cpu.php?cpu=AMD+FX-8320+Eight-Core&id=1782

Single Thread Rating: 1398 - this was slow even for 2012 when the cpu was released

Your mobo might be able to support faster cpus. Here is a list but you need to check the mobo page on the manufacturer's website.

https://www.cpubenchmark.net/socketType.html#id11

To fully utilize the 1080ti, the minimum single-thread speed to go for would be around 2000, ideally something 2500+. Obviously this could mean a new cpu/mobo etc, but performance will improve with any cpu that has a better single thread speed.

edit - forget that last part based on wolfey's advice below.

[Arya]

hawkeye の投稿を引用：

Your mobo might be able to support faster cpus. Here is a list but you need to check the mobo page on the manufacturer's website.

I'm afraid it doesn't. There's nothing from FX which will pair evenly with a 1080Ti.

They all suffer from very poor single thread performance and overheating issues; AMD backed a radical design with a low IPC and a high core clock, it didn't pan out so well.

[Sapph]

Your cpu, as stated by Wolfey, is too old and weak. Even a modern Pentium dual-core is stronger than the FX-8350.

[*Spike*]

Upgrade to a Razen 7 anything less is a waste.

[FeilDOW]

https://pcpartpicker.com/list/8byk2R this would allow your 1080 ti to spread it's wings all the way without breaking the bank too bad.

[Monk]

There is a cheaper option available to you than a whole new system build, while the FX processors are a little on the weak side, they do tend to overclock quite well, what cooler do you have? Honestly I'd go overclock the hell out of it, it should help the situation a bit, also, turn off vsync, when your frames drop below 60 it's likely cutting your FPS down to 30 to reduce tearing, you could try using fastsync instead, though I'll be honest, I've never tried it.

Edited as accidentally posted after one line.

[LiMpY]

From one FX owner to another (6350 here) and not having this problem..
I doubt it's the cpu bottlenecking. If it's dropping for a good chunk of time it's more likely to be throttling and your friend is correct. If it was a bottleneck it would be really short drops during extreme action.Throttling will slow things down until it's cool again.
Run a program like CPUID HWMonitor and watch the CPU's PACKAGE temp MAX value.
If it hits 70c you have a problem.
Also Monk has some good ideas.

[_I_]

can also be cpu/vrm throttling
when vrms or cpu overheat most good boards will throttle to help cool it down

[FeilDOW]

An FX 8350 will hold back a 1070 by like 20% even oc'ed so you are going to have a terrible time with FPS at 1080p.

My 6300@4.8 was holding back a 290x in some games years ago.

You need to pair a 1080 ti with a CPU that can handle it, it doesn't matter how cool the 8350 stays or how much you OC you will be lucky to see 50-60% of the 1080 ti's actual performance with way lower lows.