Now that the RX 470 is out is it to be preferred over the RX 480. Comparison metrics are hash rate, power consumption, purchase cost, driver stability and availability.
I am tempted to build a six card 470 ref 4GB rig. Can someone confirm that the 4GB version have a mem clock limit at 1750Mhz ? If so, is there any way to fix that with a bios mod ?
I am tempted to build a six card 470 ref 4GB rig. Can someone confirm that the 4GB version have a mem clock limit at 1750Mhz ? If so, is there any way to fix that with a bios mod ?
Been told that mem clock limit will be fix in the next driver update.
I am tempted to build a six card 470 ref 4GB rig. Can someone confirm that the 4GB version have a mem clock limit at 1750Mhz ? If so, is there any way to fix that with a bios mod ?
Been told that mem clock limit will be fix in the next driver update.
16.8.1 is out and its fixed my mem clock on my 470....playing with it now trying to get a higher hash rate but as usual its quite unstable still.
@boysie -- what pool are you using and is it showing 27Mh/s along with showing that rate locally ? Also , does it take a few more watts to get 27 vs. 24 ?
@boysie -- what pool are you using and is it showing 27Mh/s along with showing that rate locally ? Also , does it take a few more watts to get 27 vs. 24 ?
you are going to need to read a few post about the 480s, not much point me re going through all that here. use a watt meter and use some setting you find on this forum some which I put up and you will get to where your system can cope and you are prepared to pay for. what pool I use wont help you much...
I am trying to understand what the point of reference is when people report their hash rate. Hashrates are shown in many contexts 1) local rate being reported on your client/proxy 2) the pool rate 3) A "benchmark rate" or a 4) A test network hash rate.
The reason to ask "which pool" is because some report higher and some report lower hashrates for the same configuration..
I'm getting 27.5Mh/s on my Reference 480 8GBs at 2200mhz currently and I have (6) XFX 470 4GB XXX shipping on friday. I'm very interested to see what they can do.
@cscheat 22.1, exactly the same as the previous driver...this is at stock or @ -20%/800 1750/800
if I use ANY thing else it simply is useless and unusable, the 470s are extremely broken and the driver is a piss poor attempt by amd who clearly have grads with no coding skills what so ever releasing their software.
@cscheat 22.1, exactly the same as the previous driver...this is at stock or @ -20%/800 1750/800
if I use ANY thing else it simply is useless and unusable, the 470s are extremely broken and the driver is a piss poor attempt by amd who clearly have grads with no coding skills what so ever releasing their software.
my advice for now is avoid the 470.
better getting hands on used RX 480...going for 230-240€ in my country. RX 470 is available for 230€ in the 4GB version but i am not even considering those
did somebody managed to get nitro 470 8gb and manage to overclock? I was wondering is it possible to get 27mh and how much would be the power consumption
@techtot That's according to claymore, according to ethermine.org my 24 hr average hashrate is ~160 (6 cards), but i've been doing maintenance and fixing the drivers.
Doesn't seem to much love for the 470, i really hope they hit the hashrate/watt sweet spot once the drivers catch up. I'm getting one of the first etail shipments in Canada re-directed to me, so i'm expecting the drivers to suck for about 30 days. They're still awful for the 480... I'm hoping the AIB tools will replace wattman, which will allow the use of the "driver-only package"
So every setup is a little different for these 480's. You need to add one card at a time and take notes. I'll write a small guide on how to tweak a 6x rig on Windows 10.
1. Write down the ASIC ratings using GPU-Z (right click on title bar, settings etc) 2. Open Wattman and write down the default VID for each card for the highest state (7). 3. Using GPU-Z monitor the GPU core voltage. It should be idle at 0.8mv. 4. Load up miner and then note how high the default voltage in GPU-Z is now reporting. Write it down for each card. 5. Go back to Wattman and tweak each card based off default VID. What I do is, 6. Drag the clock slider to -30 so all values down clock. Now set the core speeds to manual. Tweak states 4 through 7. Set them all to 800Mhz except for state 7. Set this to 1000 or 1020. (Start with 1000, move to 1020 for a tad more Mh). 7. Adjust GPU core voltages 4 - 7 manually. Set 4 - 6 to 800mv. Set state 7 between 860 and 900mv. This depends on your default VID. The lower the default VID, the higher you want to set it. And vice versa. 8. Adjust memory clock to 1180Mhz (to start) 9. Adjust memory voltage to 900mv 10. Adjust fan Max / min temp profile to 70 Max and 60 min.
Now fire up your miner and you should be getting around 26.5Mh per card but you need to ensure no throttling is taking place. If you experience throttling you should see it within 5 minutes, at least with Claymore anyway. If you start to throttle increase VID a tad and improve ambient cooling.
If you're good after 10 minutes or so without throttling stop the miner and create a system restore point. Reboot and then go back into Wattman. Now increase the memory of each card by 20mhz until you see throttling or crashing takes place. If you crash and need to set all cards back to previous values run the last restore point. It will take less time especially if you have an SSD. **Note close your mining software while tweaking Wattman.
The idea is to now push the memory of each card as far as it can go before throttling or crashing.
*Most* 8GB reference 480's will hit 2200Mhz, some will go all the way to 2250, some may only hit 1180. You need to find the sweet spot for each card. This is time consuming but take notes as you tweak and eventually you'll get everything working. On average over 6 cards you should hit between 27 - 28Mh per rig. If you get a bad card you may get stuck with 26.5Mh but the other cards will bump up the average.
In the end with the above tweaks you should be at roughly 800W from the wall +- 20W with a 1KW Platinum power supply (I'm using an EVGA P2 1KW for reference). This will get you to over 160Mh if done right.
Comments
RX 480 = 27MH - 4GPU at 750 at the wall
This setting would be interesting.
I get 26-26.5mh/s per card for [email protected] wall for the whole rig.
Can someone confirm that the 4GB version have a mem clock limit at 1750Mhz ?
If so, is there any way to fix that with a bios mod ?
have a look at my previous posted on the 480 with lots of different setups.
pick one that suites your requirements and you should be good to go.
Boysie
Also , does it take a few more watts to get 27 vs. 24 ?
thx amd for wasting my time. again.
The reason to ask "which pool" is because some report higher and some report lower hashrates for the same configuration..
if I use ANY thing else it simply is useless and unusable, the 470s are extremely broken and the driver is a piss poor attempt by amd who clearly have grads with no coding skills what so ever releasing their software.
my advice for now is avoid the 470.
8Gb version RX = 25.5 & 260 Mh Sia, mem at 2100
6 x 470 8GB = 154Mh & 1539 mh Sia pulling 985watts from the wall.
Doesn't seem to much love for the 470, i really hope they hit the hashrate/watt sweet spot once the drivers catch up. I'm getting one of the first etail shipments in Canada re-directed to me, so i'm expecting the drivers to suck for about 30 days. They're still awful for the 480... I'm hoping the AIB tools will replace wattman, which will allow the use of the "driver-only package"
1. Write down the ASIC ratings using GPU-Z (right click on title bar, settings etc)
2. Open Wattman and write down the default VID for each card for the highest state (7).
3. Using GPU-Z monitor the GPU core voltage. It should be idle at 0.8mv.
4. Load up miner and then note how high the default voltage in GPU-Z is now reporting. Write it down for each card.
5. Go back to Wattman and tweak each card based off default VID. What I do is,
6. Drag the clock slider to -30 so all values down clock. Now set the core speeds to manual. Tweak states 4 through 7. Set them all to 800Mhz except for state 7. Set this to 1000 or 1020. (Start with 1000, move to 1020 for a tad more Mh).
7. Adjust GPU core voltages 4 - 7 manually. Set 4 - 6 to 800mv. Set state 7 between 860 and 900mv. This depends on your default VID. The lower the default VID, the higher you want to set it. And vice versa.
8. Adjust memory clock to 1180Mhz (to start)
9. Adjust memory voltage to 900mv
10. Adjust fan Max / min temp profile to 70 Max and 60 min.
Now fire up your miner and you should be getting around 26.5Mh per card but you need to ensure no throttling is taking place. If you experience throttling you should see it within 5 minutes, at least with Claymore anyway. If you start to throttle increase VID a tad and improve ambient cooling.
If you're good after 10 minutes or so without throttling stop the miner and create a system restore point. Reboot and then go back into Wattman. Now increase the memory of each card by 20mhz until you see throttling or crashing takes place. If you crash and need to set all cards back to previous values run the last restore point. It will take less time especially if you have an SSD. **Note close your mining software while tweaking Wattman.
The idea is to now push the memory of each card as far as it can go before throttling or crashing.
*Most* 8GB reference 480's will hit 2200Mhz, some will go all the way to 2250, some may only hit 1180. You need to find the sweet spot for each card. This is time consuming but take notes as you tweak and eventually you'll get everything working. On average over 6 cards you should hit between 27 - 28Mh per rig. If you get a bad card you may get stuck with 26.5Mh but the other cards will bump up the average.
In the end with the above tweaks you should be at roughly 800W from the wall +- 20W with a 1KW Platinum power supply (I'm using an EVGA P2 1KW for reference). This will get you to over 160Mh if done right.
Good luck.
i use SAPPHIRE NITRO RADEON RX 470 8G
with Ubuntu
I have tested diffrence BIOS Version:
1. the Normal Standard BIOS
24 mhs / 200 Watt (whole System)
[url]https://dl.dropboxusercontent.com/u/46174172/Screenshots/Standard.JPG[/url]
2. the OC Standard BIOS
24 mhs / 240 Watt (whole System)
[url]https://dl.dropboxusercontent.com/u/46174172/Screenshots/OC.JPG[/url]
3. Change Values with the Polaris Editor
24 mhs / 190 Watt (whole System)
[url]https://dl.dropboxusercontent.com/u/46174172/Screenshots/Test1.JPG[/url]
What values do I need to change so that I reduce the power and the increasing MHS??
thx lg Martin