New GPU got worse on one game, but better on others.

[minkey]

After installing my new Sapphire Radeon HD 7870 (old: Radeon HD 5750) games like League of Legends started stuttering (fps dropping from 60 to 40~50 randomly from time to time). The videocard did improve my gaming experience in other games though, like RIFT.

Any thoughts? Should I reinstall my computer? And yes, I installed the drivers.

NOTE: I've also updated my PSU from 350w to 620w

 

[itzdanielp]

Did you install the drivers from the CD? Or download the most current ones from the website?

 

[minkey]

Did you install the drivers from the CD? Or download the most current ones from the website?

I've installed them via the website, my CD player is broke and I didn't bother getting the external CD player.

I've downloaded the driver here to be specific: http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1160&pid=1744&psn=&lid=1&leg=0#

P.S. the game I get a lot of stutters is League of Legends, even though it ran perfectly before installing the new GPU.

 

[itzdanielp]

You can try downloading msi afterburner and checking the "Force Constant Voltage" checkbox. This should help with the issue.

 

[minkey]

You can try downloading msi afterburner and checking the "Force Constant Voltage" checkbox. This should help with the issue.

Alright lemme try that, I'll come back to you tomorrow, whether it worked or not.

I'm also reinstalling my computer tomorrow so it might not even be necessary.

 

[itzdanielp]

Good luck!

 

[minkey]

Good luck!

Btw, what does "force constant voltage" actaully do?

I've also looked it up on the internet and people didn't really respond positive about enabling it, or is it a very situational option?

NOTE: I've also updated my PSU from 350w to 620w.

 

[itzdanielp]

Basically what I was able to find out about League of Legends is that the ATI Drivers if you monitor the voltage / clock speed it go back and forth between 350MHz and 1100MHz, which is what is causing the stuttering.

Forcing a constant voltage is going to keep it at 1100MHz the whole time.

If it isn't something you want on all the time, you can create an afterburner profile, and just click the button to activate it whenever you want to play LoL

 

[minkey]

Basically what I was able to find out about League of Legends is that the ATI Drivers if you monitor the voltage / clock speed it go back and forth between 350MHz and 1100MHz, which is what is causing the stuttering.

Forcing a constant voltage is going to keep it at 1100MHz the whole time.

If it isn't something you want on all the time, you can create an afterburner profile, and just click the button to activate it whenever you want to play LoL

That sounds like a legit solution, let me try it tomorrow and I'll come back to you if it worked or not. Thanks a lot for your informative and quick answers!

 

[itzdanielp]

No problem!

Good luck!

 

[minkey]

No problem!

Good luck!

Thanks again, but why didn't it stutter on my old video card?

 

[itzdanielp]

Different technology. The newer ones are designed to do that as a power saving feature when they aren't being used fully. LoL isn't demanding enough on your card to kick it into a gaming mode where it keeps the full voltage at all times.

 

[minkey]

Different technology. The newer ones are designed to do that as a power saving feature when they aren't being used fully. LoL isn't demanding enough on your card to kick it into a gaming mode where it keeps the full voltage at all times.

Alright, thanks again, you know a lot about this stuff!

 

[minkey]

Different technology. The newer ones are designed to do that as a power saving feature when they aren't being used fully. LoL isn't demanding enough on your card to kick it into a gaming mode where it keeps the full voltage at all times.

Ok, so I tried it and it didn't work, it made things only worse. Any other suggestions?

 

[itzdanielp]

I've actually seen at *ton* of problems around the interwebs with the 7870 and LoL.

Another suggestion would be to try to go back to an older driver version, as sometimes that will help.

 

[minkey]

I've actually seen at *ton* of problems around the interwebs with the 7870 and LoL.

Another suggestion would be to try to go back to an older driver version, as sometimes that will help.

Alright, the problem isn't massive or anything, it's just annoying.

Anyways, thanks for the help!