Battlefield 4 low FPS and stuttering with hd7950

Using Mantle, just out of curiosity?

First you don't mention what resolution you are playing at, that makes it hard to give a definitive answer.

Have you tried to see if there is a difference between Mantle and DX11?

Were you having trouble like this before upgrading to 14.9?

Raptor AMD gaming app should. I do not have any Mantle games atm, but have used the recording software.
Most BF4 benchmarks under Mantle show a very significant fps gain.

Where are you playing from, relative to the server? Is it possible that it is netcode lag rather than PC lag?
Also I cannot remember whether the 7xxx series cards natively support Mantle. If not, that might explain why it doesn't help you.

Also, just wondering out loud here, was the game installed quite some time ago, and then patched/had packs added repeatedly?
Is that a possible source of game lag? I know BF4 was pretty broken at launch. And well... EA.

I see links below this thread with people using Nvidia cards having the same type of issues.
http://www.tomshardware.com/forum/id-2313439/low-bf4-fps-gigabyte-gtx770-2gb-4670k.html

Just wondering, but how does your PC do in other games? Or in 3dmark as an example?
Is it only in BF4 multiplayer?

This sounds like one of those things that will make you crazy until you find it, and when you do, it will involve something really simple that makes you shake your head and go "Really?" .

I do know that a friend of mine plays BF4 from South Africa, which has some of the worst internet occasionally, and gets more than acceptable fps on a FX6300 paired with a 6870.

I do hope you find out what is causing this, and post the answer here. Sorry I couldn't be more help. Have you gone as far as doing a complete uninstall of the game, including a registry sweep, then a complete fresh re install? Yes I know that is a pain, but if it isn't playable anyway....

Also, is there a single player component to BF4? And if so, how does that run? The same?

The suggestion I'm about to make will seem like killing an ant with a shotgun, but it can quickly eliminate a software / OS / malware problem.

Here goes:

Backup all your user (pictures, music, documents, etc) data and anything else you think is important. Wipe your boot drive (if you have any other internal drives, you may want to have them unplugged until after this is completed, heard of people mistakenly wiping out the wrong disk), re-install Windows. Install all your drivers, get Windows completely updated. Don't install any other software or make any critical changes. Essentially you are looking for a pristine clean Windows install. Then install BF4, fully patch it. Give it a try. Absolutely don't install anything else (Raptr, FRAPS, anything) just in case it's one of these types of programs that's causing the problem. So if you were using a third-party software overlay to display FPS, try using the built in console command instead. If your problem is gone, then you know it was something software related. At this point carefully install everything else. Maybe only install a few things and then retry BF4 to make sure that it's still performing well. If all goes well you should have everything back in place and BF4 will be playing as you expect it. However if after installing a piece of software you find that BF4 performing poorly again, then you may have your culprit and you can begin troubleshooting from there.

Now if you got through this process and you find BF4 is underperformiing with a clean install of Windows, then you need to look at something else. Probably starting with the graphics card itself.

If you go this route, let us know how you make out.

Like I said this method is overkill. However think how much time this will take to do, and compare it to the amount of time you've already spent + the time you intend to invest in troubleshooting this further. It's great when you can spend a couple hours and have that "AHA" moment when you find what's been causing your problem. It's not so great when you've spent those hours and not gotten a result and then resorted to scouring the internet for answers and spent days and not gotten anywhere. Sometimes the brute force method, though not elegant, gets the job done.

Another quick suggestion that may speed this process up if you ever have to do this again (won't help for this time), if you have imaging software, take an image of your clean Windows install (after the driver installs and Windows Updates). This will give you a head start if you ever need to do this again. Heck you could even do this if after you get everything set up it's working the way you want it. I would still have one of a clean Windows install though, you have more flexibility.

I would swear this is not a hardware issue but a software issue. Especially when the single player runs fine. I mean it's the same game right?
Is there some form of Punkbuster/anti hacking software used by BF4 for the online multiplayer? Which is possibly looping/trying to crash/ causing severe packet loss or net lag while in multiplayer? If the single player runs well and the multi does not, there has to be some significant difference that causes this.

Does a support ticket to EA or whoever you are supposed to send tickets to for BF4 get any kind of answer? Because if this was caused by having a AMD card, would not the BF4 forums explode with the 30 or 40% or whatever of players who could not play?

I just have to ask.. you are sure it isn't something with your internet connection, though I'm assuming you can notice the difference from internet lag and hardware lag.

If you card isn't boosting as it should try other games to see if that is the case in every scenario. Also did you do a complete re-installation of the current drivers, meaning using driver sweeper and what not?

Since your card is Sapphire you shouldn't really be using MSI Afterburner but Trixx instead. I would uninstall MSI Afterburner to start with, just to see if there could be any conlict there. I could imagine CCC and MSI Afterburner may be in a bit conflict if you are trying to adjust settings in both software.

Also when you uninstall the drivers for a clean installation be sure to delete any custom profiles you may have made.

Edit: Also make sure you have the latest BIOS version. The boost function is run through the BIOS I believe so make sure you are up to date there as well. But start with resetting all settings in a fresh installation. You're attempt in overclocking the card may come in conflict with the boost function.

Please be aware that there is a massive difference between benchmarks from single player to a 64 multiplayer map. BF4 is using alot of CPU power when playing multiplayer.. I'd imagine that the numbers that you've got from the people you know is from single player, otherwise I don't think it makes much sense.
Although Mantle could make a bit of difference here.

93% CPU usage seems like alot but what I can read through the web it's not unusal. I will have to try when I come home from work. I have a i5 3570k with 7850 2 gb so I will test my system to see what the CPU usage is. I normally play on ultra and never experience any problems. Please note the speed of the ram the i3 guy has. That may make a significant difference to free up some stress on the CPU. The other guy is playing a small 32 player map and I don't see any fps information for any of the videos.

But yeah.. I would do a total clean installation of everything. Seems like something is not quite right.

I have the exact same issue, Gtx 780, i7 4790k getting constant stutters after installing the newest Geforce Drivers, Before installing the driver i had no problem at all constantly being above 100+ fps, Seems like BF4 just has to get patched to the newest drivers as it can not fully support the newest Geforce or AMD drivers.

My CPU usage never goes above 60% so that is not the issue as people are claiming, The problem is on EAs part as there are literally hundreds of these posts that came up in the last week

Im getting often random stutters as well. I own a 7850.
On 1080p, Been looking around for a while and I cannot find anything for a fix on it.