MSI Radeon RX 570 Gaming 4GB or Sapphire Nitro+ Radeon RX 580 8GB

[happywilli]

Hello,

I just ordered a Sapphire Nitro+ Radeon RX 580 8GB but they are not in stock right now still waiting for them to come in.
But I just saw that they have MSI Radeon RX 570 Gaming 4GB.

Should I wait for 580 8GB or go for the 570 GB?

I will buy 3 of them.

//William

[Vann]

I would definitely go with the Saphhire Nitro+ RX 580's if you don't have to wait too long to get them. The RX 580 has better dual mining performance, with 36 compute units compared to 32 for the RX 570. IMO, Sapphire Nitro+ RX 580's are also one of the best mining cards. They have very good cooling, a dual bios and run STABLE at 1115 MHz core clock and 2250 MHz memory overclock using Anorak's bios mod. I like the MSI RX GAMING X series cards, but the MSI RX 570 GAMING X 4GB is an entry level card with a cheaper build quality and no backplate.

[tf2addict]

The 570s are good cards, if you can get them I'd say go for it.  570s sell out much faster than 580s usually, that's why the last two cards I've scored are the 580s.  What does that tell you about miner preference?  The 570 should give you lower power use at the same hash rate, at least that's what I'm seeing.  Dual mining may change that.

I don't understand why with 36 compute units vs 32 the 580 doesn't do a better job at ETH-only mining vs the 570 (they perform basically the same).  Is Claymore deliberately not using those 4 extra units as an incentive to dual mine?  I think dual mining is a waste, especially now that SIA is way down in price but I will do some experimentation now that I have two 580s.

[tf2addict]

I would definitely go with the Saphhire Nitro+ RX 580's if you don't have to wait too long to get them. The RX 580 has better dual mining performance, with 36 compute units compared to 32 for the RX 570. IMO, Sapphire Nitro+ RX 580's are also one of the best mining cards. They have very good cooling, a dual bios and run STABLE at 1115 MHz core clock and 2250 MHz memory overclock using Anorak's bios mod. I like the MSI RX GAMING X series cards, but the MSI RX 570 GAMING X 4GB is an entry level card with a cheaper build quality and no backplate.

I just bought two Sapphire RX 580 4GB Nitro+'s.  Dual BIOS means it has a switch, right?  I don't see a switch on mine.  Is it only the 8GBs that have the switch?

[Vann]

I would definitely go with the Saphhire Nitro+ RX 580's if you don't have to wait too long to get them. The RX 580 has better dual mining performance, with 36 compute units compared to 32 for the RX 570. IMO, Sapphire Nitro+ RX 580's are also one of the best mining cards. They have very good cooling, a dual bios and run STABLE at 1115 MHz core clock and 2250 MHz memory overclock using Anorak's bios mod. I like the MSI RX GAMING X series cards, but the MSI RX 570 GAMING X 4GB is an entry level card with a cheaper build quality and no backplate.

I just bought two Sapphire RX 580 4GB Nitro+'s.  Dual BIOS means it has a switch, right?  I don't see a switch on mine.  Is it only the 8GBs that have the switch?

AFAIK, All Nitro+ cards have a dual Bios. My Nitro+ RX 570 4GB does. The switch is located at the opening on the backplate closest to the ports.

[tf2addict]

I'm only getting 24.x MH/s with the Arorak memshift ROMs.  I get 27.x with the powersave ROM (and on less power too) so that's what I'm going with.  That's no better than my 570s and one of my 570s actually does 1 MH/s more.

[Caladonian]

I'm only getting 24.x MH/s with the Arorak memshift ROMs.  I get 27.x with the powersave ROM (and on less power too) so that's what I'm going with.  That's no better than my 570s and one of my 570s actually does 1 MH/s more.

so if i get you right rx570 is quite good to begin with am i right? just got 6 and trying to find some help setting it up still reading and watching youtube
to be well inform, would you mine sharing your settings i really love to get some idea on how to maximize my rig. thanks OP for bringing this topic here
chance to get some good feed.

[Vann]

I'm only getting 24.x MH/s with the Arorak memshift ROMs.  I get 27.x with the powersave ROM (and on less power too) so that's what I'm going with.  That's no better than my 570s and one of my 570s actually does 1 MH/s more.

The RX 570/580 have pretty much the same hashrate for mining ETH. The benefit of the RX 580's is better dual mining performance. My RX 570' can only go up to -dcri 26 before it lowers the ETH hash rate and get 28.5-29 MH/s ETH + 740 MH/s dual mining DCR. With the RX 580 I can go up to -dcri 32 and get 945 MH/s dual mining DCR.

I would try the PolarisBiosEditor v1.6 'one-click timing patch' bundled performance strap. With the PBE bundled strap, 1150 MHz core clock, 2050 MHz memory clock, -96 mV underclcok and -15% power limit in Afterburner I get 29.5 MH/s ETH and 945 MH/s DCR dual mining on a Sapphire Pulse RX 580 4GB with 125-145W shown in GPU-Z.

https://github.com/jaschaknack/PolarisBiosEditor

[tf2addict]

Dual mining Decred is worth it I guess.  Adds a good 20% extra to the revenue, though of course the 1% miner fee and extra power eats up some of that but still it's a postive,