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November 26, 2016, 08:11:50 AM Last edit: November 28, 2016, 05:35:51 AM by QuintLeo |
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I've got one rig with a pair of R9 290s (which soak a bit more power than 4x 480s) running comfortably on a Seasonic X-850 (gold).
I suspect a good 750 would be plenty for your rig, or even a very good 650 (like the Seasonic X650 or EVGA 650 G2).
1000W for that rig would be a waste of overkill, unless you PLAN to upgrade it to "RX 490" cards when those get released.
I DO make a point when I am building a new rig to put it on a wattmeter though - the dual R9 290 rig is eating about 650 watts all up at the wall mining ETH, which is WAY comfortable for a quality 850 watt supply.
Under ZEC it was eating more like 550 watts.
Plenty of room for future upgrades as the R9 290 is quite a bit more power hungry than ANYTHING current short of a Titan (The Titan X Pascal is TDP of 275 which would be CLOSE but not more, the older Maxwell-based Titan X was 350 or 375 which would STILL work but would be a bit marginal) or the possibility of a dual-core GPU like the HD 7990 or Fury Pro Duo.
Realistically though, I tend to run rigs 'till they die, or they become uneconomical - and even the uneconomical stuff I keep around for other usage and sometimes something new comes along that they ARE economical on. As a general rule a card or MB has to DIE before I'll change a rig once it's built.
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