Could my GPU's slow performance be attributed to insufficient power from the power supply?

hanoilulu · Jan 2, 2016

I just connected my new R9 390 and everything seems to be running fine, except I am not getting the frame rates I was expecting. All latest drivers are installed.

I am suspecting that for some reason the GPU may not be getting adequate power from the power supply (both PCI-E connectors are connected).

Could slow performance ever be caused by insufficient power? Or would insufficient power lead to some other problems, but not slow performance?

Thanks.

Specs:

i7 3770
16GB GSkill Ripjaws 1600 RAM
MSI Radeon R9 390
Corsair TX750

Deleted member 362816 · Jan 3, 2016

I don't think its the power supply that psu has more then enough power for that card. What games are you playing and what are your frame rates?

hanoilulu · Jan 3, 2016

I've been playing Far Cry 4 mostly. I haven't measured frame rates but the game feels choppy at times. I optimized the game's settings through AMD software that came with the card's drivers. The optimized settings are actually the absolute highest quality settings. I'm thinking I should lower those for a more realistic optimum (like turning off God Rays, ambient occlusion, fur, and trees).

Any suggestions?

maxalge · Jan 3, 2016

hanoilulu :

did you uninstall the old drivers before upgrading?

is your windows set to high power under power options?

what AA do you have set?

hanoilulu · Jan 3, 2016

maxalge :

Yes I completely uninstalled my previous drivers (NVIDIA).

Settings are set to "balanced" in power options. There isn't an option for high power, just power saver.

I have it set to SMAA, but I have also tried to turn off AA completely. The game still gets choppy at certain points.

maxalge · Jan 3, 2016

hanoilulu :

maxalge :

Yes I completely uninstalled my previous drivers (NVIDIA).

Settings are set to "balanced" in power options. There isn't an option for high power, just power saver.

I have it set to SMAA, but I have also tried to turn off AA completely. The game still gets choppy at certain points.

there should be both balanced and high performance options

set to high performance

right click the desktop

amd radeon settings > gaming > global settings > global overdrive

make sure nothing is set to negative numbers

gpu clock should be 0%

make power limit +25%

Mousemonkey · Jan 3, 2016

maxalge :

hanoilulu :

there should be both balanced and high performance options

set to high performance

also do you have "maximum performance" set in the nvidia drivers?

manage 3d settings > power management mode > prefer maximum performance

The OP has a 390, which is not an Nvidia card.

maxalge · Jan 3, 2016

Mousemonkey :

maxalge :

hanoilulu :

there should be both balanced and high performance options

set to high performance

also do you have "maximum performance" set in the nvidia drivers?

manage 3d settings > power management mode > prefer maximum performance

The OP has a 390, which is not an Nvidia card.

lol crap got this mixed with another thing i was reading XD

saw he had a prior nvidia card, and had a brain fart. Fixed

Mousemonkey · Jan 3, 2016

Yeah, it sucks when that happens and someone else notices first.

:lol:

Deleted member 362816 · Jan 3, 2016

hanoilulu :

If you read more into farcry 4 this game has issues with fps spikes. Try another game and let me know what it does.

hanoilulu · Jan 4, 2016

maxalge :

hanoilulu :

there should be both balanced and high performance options

set to high performance

right click the desktop

amd radeon settings > gaming > global settings > global overdrive

make sure nothing is set to negative numbers

gpu clock should be 0%

make power limit +25%

What does "power limit" do specifically? Please explain what this changes.

Also, what happens if you have multiple software installed? Do settings in MSI Afterburner override those in the AMD control panel?

meetyomaker · Jan 4, 2016

PSU seems to be totally adequate for 390. Check your temperatures on gpu as well so as to make sure it doesn't throttle.

Search

Could my GPU's slow performance be attributed to insufficient power from the power supply?

hanoilulu

Reputable

Deleted member 362816

Guest

hanoilulu

Reputable

maxalge

Champion

hanoilulu

Reputable

maxalge

Champion

Mousemonkey

Titan

maxalge

Champion

Mousemonkey

Titan

Deleted member 362816

Guest

hanoilulu

Reputable

meetyomaker

Reputable

TRENDING THREADS

Latest posts

Moderators online

Share this page