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strikerdark

macrumors newbie
Original poster
Nov 8, 2007
13
0
Hi if i do a 250/375 overclock to my 680mx i get a lot of artifacts in battlefield 3. The artifacts go away if i lower the overclock to 200/300. Is anybody else having this problem? am i doing something wrong?
 

strikerdark

macrumors newbie
Original poster
Nov 8, 2007
13
0
Cause I play in 1440p. Also turning on Adaptive vsync in the nvidia control panel has helped with the artifacts a bit, but I still get them
 

apedance

macrumors member
Sep 1, 2012
86
0
Vienna
Drivers up2date? What software you overclock with?

Native res. is a lot of stress for the gpu.
Are there any big differences between 1080p and 1440p?
If I use Anti-aliasing in 1080p I can hardly see any difference between 1080p and 1440p.
 

themcfly

macrumors regular
Jul 20, 2011
144
272
Drivers up2date? What software you overclock with?

Native res. is a lot of stress for the gpu.
Are there any big differences between 1080p and 1440p?
If I use Anti-aliasing in 1080p I can hardly see any difference between 1080p and 1440p.
I can hardly see any enemy at 1080p....
No but seriously, 1080p with AA is fine, but 1440p without is clearly better...
 

leman

macrumors Core
Oct 14, 2008
19,202
19,063
Hi if i do a 250/375 overclock to my 680mx i get a lot of artifacts in battlefield 3. The artifacts go away if i lower the overclock to 200/300. Is anybody else having this problem? am i doing something wrong?

I am not sure if you are serious? Of course you will get artefacts and other problems if you overclock too high. Each GPU is different. If you need to overclock, find the highest settings where the machine is still stable (a proper torture test is important!) and then step down the clocks a bit.
 

WilliamG

macrumors G3
Mar 29, 2008
9,926
3,800
Seattle
Hi if i do a 250/375 overclock to my 680mx i get a lot of artifacts in battlefield 3. The artifacts go away if i lower the overclock to 200/300. Is anybody else having this problem? am i doing something wrong?

Not seeing anything wrong. Like you said, if you lower the overclock to 200/300, the issue goes away. Overclocking is like that!
 

Mac32

Suspended
Nov 20, 2010
1,263
454
Stop overclocking your card at that speed. If you're getting artifacts you might end up damaging your gfx card if you're not careful. Either your card has lower tolerances than others here, or maybe you are not cooling your iMac properly - or both. As always, research before overclocking. Overclocking "blindly" is asking for trouble. Not saying that applies to you, just a general advice...

I can't understand how people can play in 1080p on a 1440p screen, it looks really bad. 1440p is very demanding for gaming in general. It's really first with GTX780 that we've gotten a decent one-card solution. Hopefully next year we'll get a big gfx update that'll make 1440p gaming more fluid on iMacs. With the thunderbolt2 standard, I wonder if external gfx cards would actually be an upgrade for gaming...doubtful though.
 

Outrigger

macrumors 68000
Dec 22, 2008
1,765
96
Hi if i do a 250/375 overclock to my 680mx i get a lot of artifacts in battlefield 3. The artifacts go away if i lower the overclock to 200/300. Is anybody else having this problem? am i doing something wrong?

when you get artifacts, that means your card is trying to tell you something! If I stand in the searing sun for 5 hours, my skin gets burning red, but if I'm only out for 20 minutes, the problem goes away.

I know you can put 2 and 2 together.
 

Serban

Suspended
Jan 8, 2013
5,159
928
so can you run Battlefield 3 on 1440p with high settings and have over 30 fps?
im asking to future prove for Battlefield 4 and next 27" imac with probably 780M(X)
 
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