7850 poor performance in BF3?

[Goatsecks]

Hey guys,

My gtx570 had to be RMA'd (it was a b-stock), since it was b-stock i could not get a new one as a replacement but did manage to wangle a msi twin frzr 7850.

When playing bf3 (even on low settings) I am inundated with stuttering. The 570 could manage reasonable high settings and keep things silky smooth.

I understand this card should be able to comfortably play bf3 so do you guys have any idea how I can improve the performance?

Spec:

CPU: E8600 @ 4.3ghz,
Memory: 4 gb @ 890 ghz,
GPU: msi 7850, core @ 1080 ghz,
Mobo: p5q deluxe,
PSU: Enermax modu 82+ (625 w),

I play at 1900x1080.


=]

 

[Silverforce11]

Sounds like a driver clash, make sure you remove all traces of previous driver with driver sweeper or other like programs.

My 7850 at my clocks run BF3 ultra 1080p ~60 fps, in 64p MP.

Also duo cores suck horribly for MP.

 

[daveybrat]

Sounds like a driver clash, make sure you remove all traces of previous driver with driver sweeper or other like programs.

My 7850 at my clocks run BF3 ultra 1080p ~60 fps, in 64p MP.

Also duo cores suck horribly for MP.

That was my thoughts too. I can definitely see his Dual-Core cpu holding back his performance in BF3 multiplayer.

 

[Arkadrel]

AMD has some sort of issue with "AA Deffered".

It hurts nvidia cards less than AMD ones, which is why you usually see ULTRA settings benchmarks where nvidia cards beat same price tier cards in BF3.

"The "Deferred Antialiasing" in-game option enables traditional MSAA, while the "Post Antialiasing" option enables the newer FXAA technology. "

Basically if your useing a AMD card for BF3, you want to use FXAA or MLAA, and not MSAA in this game.

so to quote another thread:

My suggestion is turn it off and go with AA POST (FXAA)

You can use FXAA Injector for BF3:
http://extreme.pcgameshardware.de/b...field-3-update-danoc1-v1-3-beta-download.html

(its in german, so use google translate to help you understand it, it looks much better with this)


A 7850 *should* allow you to use ULTRA settings (with FXAA) @1920x1080 in multiplayer and be 60+ fps.
Maybe give it a tiny OC, if your dipping below 60 fps at times.

If your much lower down, it might be because your CPU bottlenecked or something.

 

[Silverforce11]

It runs ultra with 4x MSAA fine as well, 1.2ghz+ is faster than a gtx580.

 

[Spjut]

At first note I'd say it's the CPU bottlenecking, but you said it ran fine with a GTX 570. Did you only play the single player with the GTX 570?

 

[aaksheytalwar]

Is it possible that nvidia cards do better when the CPU is a bottleneck? Compared to same tier and cards?

 

[cmdrdredd]

Is it possible that nvidia cards do better when the CPU is a bottleneck? Compared to same tier and cards?

Nvidia cards just do better in BF3. It's not so much that they do better when the CPU is the bottleneck, but that they do better in certain games.

 

[BD231]

Not likely, nvidia gpus typically have higher driver cpu overhead than amd. Itd be nice to see if thats still the case, no clue how to test that though.

 

[Arkadrel]

Nvidia cards just do better in BF3. It's not so much that they do better when the CPU is the bottleneck, but that they do better in certain games.

Only with ULTRA settings and MSAA on high.
Turn off that MSAA and the AMD cards beat or match the equal nvidia counterparts.

its just when people run benchmarks with BF3, they turn everything to up, and use MSAA.

 

[cmdrdredd]

Isn't the point of playing games on PC to turn those settings on anyway?

 

[Silverforce11]

Well not really BF3 is a special case, if you enable ultra FXAA is set on high. FXAA on high pretty much overrides the entire scene with AA and blurriness that addition of 4x MSAA has negligable visual improvements.

But you CAN run with everything ULTRA, FXAA OFF and 4x MSAA, game looks heaps better that way (but still suffer a lot of aliasing due to the custom MSAA routines in their deferred rendering engine). I currently run it like this with the OC 7850. On my old OC 5850, i run high, fxaa off, msaa off and get pegged at 60 fps in MP. Honestly the difference from high -> ultra in settings is not noticable in gameplay, only in zoomed in screenshots.

 

[VulgarDisplay]

Sounds like a driver clash, make sure you remove all traces of previous driver with driver sweeper or other like programs.

My 7850 at my clocks run BF3 ultra 1080p ~60 fps, in 64p MP.

Also duo cores suck horribly for MP.

Strange that my 7970 can't maintain 60fps on Ultra with a 4.5ghz 2500k. I think you need to check your numbers again.

 

[Silverforce11]

Strange that my 7970 can't maintain 60fps on Ultra with a 4.5ghz 2500k. I think you need to check your numbers again.

I haven't played bf3 for awhile, but last time i tested this OC i ran 64p metro conquest and it was pegged at 60 fps with fraps counter.

Not unsuprising:

Caspian ([H]'s bench, also 1200p vs 1080p) is more intensive than Metro certainly.

7850s seem to require ~50-75mhz above a 7870 to match its performance.

 

[VulgarDisplay]

It's probably because the only time I look at the FPS counter is on Metro in the urban outdoor area with all the smoke. That destroys my FPS and it's compounded by the fact that I"m on a 120hz monitor. Anything below 90 isn't smooth on 120hz.

 

[WMD]

It runs ultra with 4x MSAA fine as well, 1.2ghz+ is faster than a gtx580.

How does 7850 at 1ghz compare to 5850 at 1ghz running BF3? Is it noticeably faster?

 

[Rvenger]

Enable MSAA in CCC and not through the game. It makes a much bigger difference in performance for AMD cards.

 

[Silverforce11]

How does 7850 at 1ghz compare to 5850 at 1ghz running BF3? Is it noticeably faster?

5850 @ 1ghz runs bf on "high" pegged at 60 fps vsync. Can't enable MSAA else performance tanks hard, like to 35 fps.

the difference with 7850 is u can run with MSAA on and its good.

also i didnt know CCC enabled MSAA works with BF3???

 

[WMD]

5850 @ 1ghz runs bf on "high" pegged at 60 fps vsync. Can't enable MSAA else performance tanks hard, like to 35 fps.

the difference with 7850 is u can run with MSAA on and its good.

also i didnt know CCC enabled MSAA works with BF3???

Thanks for the info. Now it's a tough decision between unlocked 6950 and 7850.

 

[Silverforce11]

Thanks for the info. Now it's a tough decision between unlocked 6950 and 7850.

I wouldn't do either. If you can find it, get a cheap 7950 like MSI twin frz3 or Powercolor PCS+, these are excellent coolers. If you can find them going around $330, its unbeatable value when you factor in the huge OCs. Ive been scouring forums on overclocks, and these cards are getting >40% or more average, with near perfect scaling.

I got the 7850 recently since it was pretty good priced, considering everything else was $400+, but with 7950 going for low $300s, no contest.

Just ordered a PCS+, now I have to sell this 7850 (like 2 months old) Damn overclocking is such an addiction.

 

[aaksheytalwar]

From what I remember :

2600k 4.3
16gb
7970 high oc

Probably 19x10 max 4x msaa
And I rarely dipped below 60 fps with avg much higher

Not 100% sure of my memory though

Also, I am sure of th below:
25x14 max but no aa of any sort
Minimum fps 60-80 mostly
With rare sub 60
Higher avg


Both were single player only. Not multiplayer

Of course a 2500k may be badly affected in mins
A stock 7970 will get 45-50 fps where I got 60 everything else being the same
Etc

 

[WMD]

I wouldn't do either. If you can find it, get a cheap 7950 like MSI twin frz3 or Powercolor PCS+, these are excellent coolers. If you can find them going around $330, its unbeatable value when you factor in the huge OCs. Ive been scouring forums on overclocks, and these cards are getting >40% or more average, with near perfect scaling.

I got the 7850 recently since it was pretty good priced, considering everything else was $400+, but with 7950 going for low $300s, no contest.

Just ordered a PCS+, now I have to sell this 7850 (like 2 months old) Damn overclocking is such an addiction.

Yes both are rather marginal upgrade from 5850 at 1 ghz. Unfortunately the 7950s in my country are priced around $600 ($500 usd) and up. Yeah it sucks.

 

[Goatsecks]

Sounds like a driver clash, make sure you remove all traces of previous driver with driver sweeper or other like programs.

My 7850 at my clocks run BF3 ultra 1080p ~60 fps, in 64p MP.

Also duo cores suck horribly for MP.

Thanks matey, that seems to have cleared up the problem. BF3 is playable on ultra now (but for day to day use I mellow the settings a little).

Both the 570 and 7850 run/ran MP very sweet considering how 'dated' the rest of my setup is.

 

[Bobisuruncle54]

Sounds like a driver clash, make sure you remove all traces of previous driver with driver sweeper or other like programs.

My 7850 at my clocks run BF3 ultra 1080p ~60 fps, in 64p MP.

Also duo cores suck horribly for MP.

I doubt that very much. Provide proof of your outlandish claims please.

 

[Goatsecks]

I am afraid the same old problem has reared its ugly head. Not sure why it played nicely for the one day only to relapse into its old habits.

(my old 280 is playing bf3 with more fluidity than the 7850).