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VisionTek 470 reference 4gb

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So I grabbed one of these to save $20 thinking it would be the same as a sapphire reference. That doesn't seem to be the case.

It has elipda memory, so I copied the 1500 strap up, bumped tdp to 100, then bumped the memory to 2050. This gives me a solid 29 mh/s with the sapphire cards, but with visiontek I get a black or orange screen.

I reflashed with 1750 strap, and used watttool to bump the memory to 2000. Now it's doing about 24 mh/s, but somewhat stable. I didn't have much time to mess with it today, but hope to get it performing better in the next few days.

Has anyone had luck getting these to perform like the sapphire reference 470's?

Edit: I still can't get the memory over 2000 without an instant crash, but with the 1500 strap up and 20% power in watttool I'm at 28.5 mh/s, with 1200/2000.

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