(GPU) Artifact differences between core and memory?

[KNiVES]

I've been looking this up on the net but it's quite hard to find a solid source. I've read that flashing dots are a sympton of a core overclock that's too high, whereas empty/flickering textures are related to the memory. I'm currently overclocking my GPU at the moment and at higher speeds there will be a green dot flashing somewhere on the screen during gameplay. It doesn't happen all that often - if you weren't looking for it you may not even notice it but it's there. I'd like to resolve it but I'm unsure as to whether it's related to the core or the memory.

I would appreciate education on the signs of a core/memory overclock

 

[benjii]

That sounds like the core to me. In my experience, core artifacts are a lot more random and chaotic. Whereas memory artifacts present quite reliably and often consist of patterns, like black checkered squares.

 

[Holst1981]

Different cards have different artifacts, as components differ so do the artifacts.

I tend to oc core and memory to max independently before I clock both together.
That way I will see artifacts for both.

On my 970 core tends to be more localized and higher contrast dots. You only see them when the gpu isn't stable.
Memory is more spread out and looks more like interference.