R9 390X worse performance than GTX 750 Ti

brewregamer · Feb 4, 2016

I recently replaced my GTX 750 Ti with the R9 390X, I of course naturally expected a vast improvement but I received the exact opposite. When I attempted to run a few games (I'll use 1 as an example) on World of Warcraft my GTX 750 Ti was able to run that above 100fps at all times no problem, When I had installed the R9 390X and its drivers, it performs under 60fps with the same graphics settings with frequent drops to under 30fps.

I have tried all sorts of ways to remove old drivers and install new ones for the past day and especially the past few hours and none of that has worked for me. The temperature on the card has been fine, my power supply is a 1000w and I have 16GB of DDR3 2400mhz RAM. My processor is a 3.8ghz quad core as well as my motherboard is on the list which is compatible for the R9 390X graphics card. I don't know what else I can do so any help or any subtle trick that may fix this would be appreciated. Thanks.

ModMonster · Feb 4, 2016

Run DDU to remove all graphics drivers (AMD and NVidia). Reinstall your AMD drivers.

JohnBonhamsGhost · Feb 4, 2016

unless it is a faulty card or there's something wrong during the install there is definitely a problem within Windows. 390X is much more powerful.

about removing old drivers;
check Device Manager, if Nvidia Display Adapter is still showing uninstall it. check Programs & Features for anything pertaining to Nvidia, uninstall it. search for one of Nvidia's own uninstallers, made just for this purpose. run CCleaner or something similar and "clean" the registry.

one simple way to fix may be reinstalling Windows. though i always try to avoid doing this.
maybe check Power Option's PCIe power settings and other options. High Performance plan should set everything right.

johnnyb105 · Feb 4, 2016

There should be a really big gain from your 750 TI TO THE 390x YOU need to remove the drivers and then reinstall drivers again this happens when you just take the old card out and install a new one like suggested above Run DDU found here.. http://www.guru3d.com/files-details/display-driver-uninstaller-download.html and reinstall your new drivers..

JuJoo_Guppy · Feb 25, 2016

Drivers, drivers, drivers. While it could be a faulty GPU, drivers are easily the problem too as everyones mentioned, clear out all of em.

If you want my personal thoughts, as long as I don't have a ton of things that will take me all year to reinstall, I often do a reformat when I install new hardware. While not necessary, it A) whipes out all old drivers, period. and B) reinstalls fresh drivers across the board, for all hardware. I am sure there are people that will say don't bother, and they are not wrong, its just what I personally do.

I will say, that when Fallout 4 came out, and I switched my 290x from catalyst to Crimson drivers, the very first time even after I thought I had cleared out all drivers, my game ran terrible w/ Crimson. I decided it was likely a driver conflict of some kind, and I had planned to reformat since it had been a long time (Plus I got a new SSD for games anyway), so I reformated, and reinstalled with Crimson.. and like magic, the card worked 100x better than it had ever before..

Moral is, driver issues can make a great card seem terrible.

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R9 390X worse performance than GTX 750 Ti

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