Originally Posted by 354145
Is it normal for a Sapphire 7870 XT to get artifacts when ever going above 1150mhz / 1500mhz even with forced voltage set to 1.3?
In ungine heaven i am even getting artifacts at 1150, but they are so incredibly difficult to notice that im not sure if it makes a difference, does it?
I'm getting red and green kind of "blurry" circles/spots (not perfect circles, and the red/green fades towards the edges so there is no clear line) when looking at the smoke coming out of the chimney in ungine heaven for example. I am also getting these artifacts when the camera "focuses out" so the background is blurry. Ocassionally i even get checkboard patterns with varying colours in these types of situations.
Just wondering if there is something wrong with my card or if this is just as high as it goes
, i apreciate any help!
Originally Posted by 3n3rg3ia
On my xt I'm having artifacts only when I overclock higher than 1200mhz the core, and they are just a few, at 1240 it starts to artifact a lot.. But I had power limit to +20% bare in mind not all chips the same, I don't know why this happens tho, it makes a company look bad.....
These cards run at 925 stock, 975 turbo. Anything above that is overclocking and it's "normal" for a device to malfunction when pushed beyond a certain pint, that point may vary from one chip to another, but one fact is for sure - overclocking is not guaranteed.
If you can push 1150 without issues and only above that you have problems, you get an 18% OC above stock turbo speeds. 1200 is even better. Having artifacts past a certain OC point is normal for any brand and any model I believe, it's the chip failing to go past a speed it was not designed to go past. Nothing unusual and I don't know what would make a company look bad in that. A chip that malfunctions at stock speeds - that makes a company look bad. But only if it happens to many chips and they have no reaction to the problem. That's what I think at least.