Question Sapphire 5700xt - how to get lowest possible power consumption with mpt and tref timing?

triscope

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Hi, I currently have a sapphire 5700xt that I run on:
OS: windows
Miner: red team miner 0.8.1
Core: 1225 mhz @ 720 mv
Mem: 1850 ( don't know how to change voltage. I don't think I can)
Fan: 60%
Watts in driver: 108w
Watts at the wall: approx 160w
Bios mod: 1500 memory straps + 6000 tref timing

I have other cards With exactly the same settings that pull much less. Like 30 Watts less. How can I get this card to draw less? I've heard some doing 80watts at the wall. How is this possible?
 
Samsung memory claim much lower values in the software, i dont know if thats real power draw though, 30w difference at the wall is a "big difference"
 
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