I started looking around this site for some answers, but I am at work and can't try anything currently, and I wanted to get this out there in case anyone is able to throw out some ideas that I can try tonight.
So i recently built a new PC and i can't get 144fps with it?
i get anywhere between 60-80fps. occasionally getting higher. often getting lower. The VERY first time i booted up my system and played the game i was getting 130fps and above rarely dipping. but since, i get the aforementioned fps. I've removed all old drivers from my system (my OS is from my previous build), reinstalled D3, reinstalled my graphics drivers. D3 is installed on an SSD. about the only thing I haven't done is do a clean install of Windows.
Other games get 144Hz, and my benchmarks are all where they should be, and stress tests are all clean, so i know its not a faulty card/CPU. because i do get over 60, i know its not vSync enabled in game, and in the menu i get 144.
Here is the kicker though. My friend has a nearly identical build to mine, and he gets 144 no problem (his specs listed below). the only difference i can think of is he is plugged into the internet, where i have to use WiFi. would this really hinder FPS? my latency is no difference then his.
Can anyone think of what could be going on? i would normally chaulk it up to bad optimization, but he's getting the desired FPS. Thanks for your help guys. If this needs to be in a different section, please move it.
i7-6600k 4.5Ghz overclocked with 16 GB RAM
GTX 1080 Gigabyte G1 Gaming 2050Mhz overclock
Windows 10 (ver. 1607)
ASUS Z170 Motherboard
Dell S2716DG monitor with G-SYNC OFF at 144Hz
And my fps is as high as it can be in Diablo 3. In order to keep the GPU not too loud or hot, I limited FPS at 160.
It seems that if I compare my specs to yours, it's just the processor that is different.
So my questions will be:
1) What is the GPU/CPU usage in other games and in Diablo 3? Get CPUID and MSI Afterburner for that.
2) G-Sync on? Try turning it off.
3) Latest drivers clean install?
4) Update to Win10 or clean install of Win10?
You said - my OS is from my previous build - ??? You mean you had different motherboard / CPU / GPU and kept same Windows without reinstall? That's bad. I don't know whether it is the reason or not with Diablo 3, but it will definitely cause you problems.
5) Did you check your CPU overclock with the necessary tools to prevent throttling and to check if it's doing fine? If no, then reset CPU setting to default and try Diablo 3. Diablo 3 is more CPU bound then GPU bound, as far as I know
6) Is your GPU overclocked?
7) Try Diablo 3 in x64 and DirectX 11. Actually, don't just try it - it's how you should always run it.
V-Sync in game is off, but on in nVidia Controls, tried it off there too, no difference. Tried setting and not setting Foreground/Background FPS, no difference.
1) I've tried both 32 and 64 bit. i notice about 10 FPS more in 32 bit, but i run it in 64 even still.
2) Don't have numbers off the top of my head for usage, but CPU isn't being maxed and neither was GPU. I've monitored them
3) G-Sync is on, noticed hitching when it was off, I couldn't deal with it, but it didn't make a difference off FPS wise.
4)Update to Windows 10 back when it was released. Yes, its the same OS from my previous build, I just installed the Drive into the new build. I removed all the old drivers, a clean install was my next step.
5) CPU isn't overclocked. 4.5 is just the Turbo Boost.
6) GPU isn't overclocked yet either.
7) this is how i run the game.
Another thing I forgot to mention is i see no performance increase if i turn down the settings, or switch it back to 1080p. which doesn't make sense.
As I mentioned, i reinstalled the game, but that was last night, havent tested it since. MAYBE that fixed it. if it doesn't, freshly installing Win10 is my next step.
i never said my monitor was the problem? and i fully realize some games I wont get 144FPS on. especially at max settings. however Diablo i knew i should have been able to, at least because, like my OP said, my friend was getting 144 in game with the same build so i knew i should have been too.