My RX580 Benchmarking and Results: 30.5Mh/s @ 77.5W (+ 1130MH/s Dcr w/ 125W)

[Za1n]

with amd what you read on afterburner is not power consume to the wall. there are big differences..

This is true, I got similar results as the OP, but my at-the-wall draw per card (6 rig system) was 108 watts after subtracting the PSU efficiency 92% and system idle draw of 50 watts. My GPU-z fluctuates around 80-85 watts, so I think the end results would be similar.

EDIT: To clarify I am getting 30 Mh/s per card (180 rig total) with core clocks set at 1135 and memory clocks set to 2275, core voltage set to 925 mv, memory voltage left at default. I did do the bios mod using the jaschaknack (sp?) PolarisBiosEditor by copying the 1750 memory strap (Samsung memory) from 1:1750 to 1:2000. I did try to copy the lower 1625 strap, but the system was unstable.

For full disclosure, I am also using the Crimson ReLive Edition 17.4.3 drivers on a Windows 10 64 bit system. Bonus, at least with the RX580 I did not have to apply the pixel patch after modding the BIOS.

My raw power usage data is:
Total rig draw: 760W (kill-a-watt reading)
PSU 92% efficient (8% inefficient):  760 - 60.8 = 699.2W (or just 760*0.92).
System idle draw (50 watts): 700 - 50 = 650W
Draw per card: 650 / 6 = ~108W

[Za1n]

what software can i use to change the core volt and mem volt?

If you use Claymore you can use -cclock, -mclock, -cvddc, and -mvddc parameters when you launch the miner. See the Readme file in the Claymore directory for usage information.

Since Wattool seems to not read values correctly on the newer cards, I been using the miner directly to control the clocks and voltages, GPU-z seems to confirm it is working as intended.

[Biodom]

1. can you run RX 570/580 and bios mod cards using Win 7 instead of win 10? In am tired of win 10 and would like to try 7 if possible.

2. Does anybody know if all those Win 7 pro codes that UK people are selling on ebay are any good and can be activated reliably?
(prices are between $6 and $9)

[Apneal]

very usefull info!.. if i take a 480 to the same numbers 1300 clock - 2100 mem, can i get the same Mh ?
[/quote]

It has the same number of compute units/cores/architecture, so mostly yes, with a 480 you'll probably need much more voltage/power to achieve the same core clock however, and the memory has to be tuned beyond just setting the clock

[ps_jb]

My raw power usage data is:
Total rig draw: 760W (kill-a-watt reading)
PSU 92% efficient (8% inefficient):  760 - 60.8 = 699.2W (or just 760*0.92).
System idle draw (50 watts): 700 - 50 = 650W
Draw per card: 650 / 6 = ~108W

I would say - an excellent results!

[ps_jb]

So my Sapphire Nitro+ RX580 Limited Edition cards came in today

Did you buy $279 version on Newegg?

[Apneal]

So my Sapphire Nitro+ RX580 Limited Edition cards came in today

Did you buy $279 version on Newegg?

Yep thats the one

[Za1n]

I made a few more changes, namely I reduced the cvddc setting a bit more to 900 mv and decreased the core clocks from 1135 down to 1125 and was able to shave a bit more off my power consumption, which is closer to 102 watt/card now. I also tried Claymore 9.1 using -asm 1 and -dcri 8 and I can get 30.5 Mh/s per card solo mining with the above power draws. If I try dual mining with Decred my wattage shoots up past 120-125 watt/card.

[Apneal]

I got an interesting result testing. The Nitro+ RX580 seems perfectly happy to run on just a single 8-pin power connector. However from my tests, this reduced hashrates by 1% and power consumption by 1% consistently The 1% drop seems to only have been temporary.

[yoonline]

here are my numbers :
rx 480 4gb
ETH: 30.3 mh
DCR: 1030 mh
clock 1250
mem 2100
107W afterburner
temp 65~

i cannot go furter because the themp will jump and surpass the 75º at 100% fan :S

[Jamievs]

What are  the dual mine speeds? (stock and modded). All topics only mention ETH mining..

I've been continuing to tweak and also optimizing for dual mining.

So far:

Eth: 30.5 Mh/s
Dcr: 1130 MH/s
VDDC: 0.877
Core: 1300
Mem: 2100
Mem voltage: 0.9
Strap: Custom mix
Mem Errors: 0/min
Power: 125W

NOTE: If you don't undervolt/limit power, it easily dual mines 30.5 MH/s + 1450 MH/s Dcr

Thanks for answering my question. That looks way better as the 480's

[Pennywis3]

UPDATE2:

The Nitro+ RX580 seems perfectly happy to run on just a single 8-pin power connector. However from my tests, this reduced hashrates by 1% and power consumption by 1% consistently

This is the news i've been waiting for, thanks a lot for sharing.
Im geting 12 Nitro+ to play with

I hate using 2xPSU on my rigs, and mostly have EVGA G2 1300w, which without adapters cant connect 6x6+8 pin.

Great news indeed 

[yoonline]

@Apneal can you post a link to the Uber-mix v2.3 please, i dont understand, it is a app? i want to custom my timings

[Eliovp]

@Apneal can you post a link to the Uber-mix v2.3 please, i dont understand, it is a app? i want to custom my timings

http://www.overclock.net/t/1604567/polaris-bios-editing-rx5xx-rx4xx

That's where the "uber timings" come from.

[shadowhlohavec]

here are my numbers :
rx 480 4gb
ETH: 30.3 mh
DCR: 1030 mh
clock 1250
mem 2100
107W afterburner
temp 65~

i cannot go furter because the themp will jump and surpass the 75º at 100% fan :S

could you please share your gpu brand + memory type and your bios mod?

[jstefanop]

So my Sapphire Nitro+ RX580 Limited Edition cards came in today

Did you buy $279 version on Newegg?

Yep thats the one

Never understood why people buy the 480/580 for a $100 premium when you can pick up the 470/570 for 170-180 and it hashes the same.

[Raja_MBZ]

Well, if you're carrying RX 480's or 470's, you'll be feeling good to know that RX 580 are not better than RX 480 for mining.

I personally don't want any new GPU to come up with huge hash rate upgrade and de-value my current rigs.

[Elder III]

I would go for whatever is the cheapest deal personally. The 570s and 580s are priced about the same as the 470s and 480s, at least in the USA. I think if the price is within 10% I'd get the 500 series just for a little better resale value and possibly slightly higher hashrate (equal at least).

[Apneal]

UPDATE2:

The Nitro+ RX580 seems perfectly happy to run on just a single 8-pin power connector. However from my tests, this reduced hashrates by 1% and power consumption by 1% consistently

This is the news i've been waiting for, thanks a lot for sharing.
Im geting 12 Nitro+ to play with

I hate using 2xPSU on my rigs, and mostly have EVGA G2 1300w, which without adapters cant connect 6x6+8 pin.

Great news indeed 

Why arent you using this:
https://www.amazon.com/gp/product/B007JNUSJY/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

With this:
http://www.parallelminer.com/product/x5-breakout-board-adapter-compatible-with-hp-1200-watt-dps-1200fb/

Add a dinky low wattage power supply to power the the rest

[Jamievs]

What are  the dual mine speeds? (stock and modded). All topics only mention ETH mining..

I've been continuing to tweak and also optimizing for dual mining.

So far:

Eth: 30.5 Mh/s
Dcr: 1130 MH/s
VDDC: 0.877
Core: 1300
Mem: 2100
Mem voltage: 0.9
Strap: Custom mix
Mem Errors: 0/min
Power: 125W

NOTE: If you don't undervolt/limit power, it easily dual mines 30.5 MH/s + 1450 MH/s Dcr

I am a newbie when it comes to clocking and stuff but I am willing to learn. Are those settings you can set in watttool?