Sapphire Radeon R9 295x2 Unreasonably Low Performance

Chaska

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Aug 24, 2015
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Wow, I didn't realize how much I'd typed. Scroll for TL;DR

Ever since I first bought my 295x2 back in late 2014, I've seen many stability issues within games, benchmarks, and even my desktop. For a while, I accepted this as I had just went through upgrading my entire PC and was not keen on spending time I could be using to game troubleshooting. That is, until I looked up a 295x2 benchmark of GTA V on Youtube and saw performance double what I was used to. In games, such as GTA V, my fps can only maintain a lackluster 60 with everything in the regular graphics menu maxed out, and the "advanced graphics" untouched (I say 60, but it's really 40-60, with occasional stuttering which pretty much ruins the experience for me).

I've tried updating my BIOS, overclocking my cpu (4790k), switching to new drivers, reverting to old drivers, reinstalling the card, flipping the BIOS switch, moving to Windows 10, but nothing seems to work. My psu is a Rosewill rbr1000-m and is capable of more than enough power to satisfy the card. I can see the temperatures on both cards in Afterburner, so the card seems to be working with both gpu cores, leading me to suspect driver issues. I've overclocked the card a couple of times, but never extensively for prolonged periods of time. I'm about ready to ditch the card just for a more enjoyable experience and buy my first high-end Nvidia card, but not before one last attempt at working this out. My monitor (LG 34UM67) has Freesync, which means that I'll probably sell it if I join the green team.

TL;DR: I want have a consistent framerate at 2560x1080, but my 295x2 is under-performing majorly. I've exhausted every option, but I'm hoping that someone can suggest something that will help.
 
Solution
I would suggest that vsync is not off which is possibly the cause of the stuttering and frame rate cap.
Also, you may not like it, but turn down some detail settings, even the best PC's cant maintain solid frame rates with max everything, they will dip occasionally.

If that doesnt work, you may not like it, but try a clean OS install, install drivers and game only. No antivirus or anything to rule out a software conflict, and see how it works. Then install updates bit by bit keeping a system restore from before so you can roll back if anything stuffs performance. I have seen this before, one windows update will just kill crossfire (used to have crossfire 6850's).

jediTT

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Feb 8, 2014
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Is it just GTA V? That game is horribly optimized and you see different framerates even between identical systems. I'd run something like passmark or heaven/valley benchmark and use that score to compare and see what range you SHOULD be getting.
 
I would suggest that vsync is not off which is possibly the cause of the stuttering and frame rate cap.
Also, you may not like it, but turn down some detail settings, even the best PC's cant maintain solid frame rates with max everything, they will dip occasionally.

If that doesnt work, you may not like it, but try a clean OS install, install drivers and game only. No antivirus or anything to rule out a software conflict, and see how it works. Then install updates bit by bit keeping a system restore from before so you can roll back if anything stuffs performance. I have seen this before, one windows update will just kill crossfire (used to have crossfire 6850's).
 
Solution

Chaska

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Aug 24, 2015
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I just tested Valley on the extreme preset and I'm getting 100+ fps, which is more in line with how other peoples' cards are performing on that benchmark. In the past I've tested Passmark, which yielded results that you'd expect from two 290x cards. I've had this issue with AMD's "GTA V Optimized Drivers" as well, so I'm willing to chalk this up to poor optimization on behalf of Rockstar. It's such a shame, though. I was really hoping such a beefy card could somehow be immune to driver neglect. Also, to be clear, I only experience this in GTA V despite what I said in the original post. Then again, GTA V is one of maybe 4 at least semi-demanding games (Bioshock Infinite, BF4, Fallout 3 with loads of mods) I regularly play. Most of these other games are old enough to have pretty solid graphics card support. I just don't own enough of the more recent titles to be sure that this is an isolated issue.
 

Chaska

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Aug 24, 2015
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Thanks for the suggestion, I've been considering that. I have an extra drive I could try that with. It's going to take ages to get the game on the hard drive, though. Wish me luck.

 

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