r9 380 4Gb & r9 390 8GB

[Harunn]

Hello,

I could buy msi r9 380 gaming 4gb for a very good price.
or
msi r9 390 gaming 8g also for a very good price

What would be the mh for this card? is this still profitable ?
Greetings

[Harunn]

Bump

[Cereberus]

r9 390 8 GB would have a really good mhash I believe up to 31 Mhash stock and with a bit of overclocking, MSI Gaming X version can reach up to near 35 Mhash many users on Reddit are saying. 31 Mhash is a good hashrate but keep in mind that this card is an energy power hungry beast so take into consideration the energy cost where you are, if is less then 0.07 USD/kwatt I believe this to be profitable.

Have no idea about R9 380 but not worthy because as far as I remember it was 16-18 Mhash.

[QuintLeo]

R9 390 is a legitimate 30 Mhash/sec ballpark card on ETH with overclocking and undervolting.

 Should do a bit better than my R9 290 cards since it has faster memory that should be able to clock higher, and MINE still do over 29 Mhash/sec.

 R9 380 is probably better off on something like ZEC, they are one small step DOWN on the GPU but a hair better on the memory than my R9 280x cards that stressed to get to 14 Mhash/sec on ETH a year ago but can pull close to 300 sol/s on ZEC.

[Harunn]

Thanks for the sharings guyz! And how much watt will it pull per card?

[Branko]

My R9 380 is doing 22MH/s ethash

[QuintLeo]

I would anticipate a R9 390 eating 250-300 watts if you push it for max hashrate.
Might get it under 200 with good undervolting if you're willing to not push QUITE as hard.

[Harunn]

So what would you say gtx 1060 or r9 390 for the same price??

[DrG]

R9 390 is a great card for people who have cheap power AND good cooling. The cards are beasts (I ran a bunch of 390 rigs). They are most efficient at 1100 or 1125 core and 1500 mem. You will get about 31.2 to 32 MH/s on Ethash at about 260watts using 110V and a decent undervolt. Don't expect 35MH/s unless you have insane cooling and the card to live a short life. It's also hard to mix the R9 series with the RX series and have stability so plan for a dedicated rig.

R9 380 was never really impressive for Ethash. It might do the same 24MH/s on Ethash alts like Ubiq that the R9 280X used to do on Ethereum. As Quintleo stated, it would probably be better served tasking to run Equihash where it competes with a GTX 1060.

I would only get a R9 390 over a 1060 if you happen to have very cheap power and can dump the heat. The reason I sold off all my R9 390s for over $400 each was to convert to 1070s - almost the same speed, new warranty and less than 1/2 the power use.