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Topic: Hashrate RX 470 - page 9. (Read 135065 times)

hero member
Activity: 649
Merit: 505
March 25, 2017, 08:09:46 AM
reference... neither nitro nor nitro + ... reference card with blower cooler ...

https://www.youtube.com/watch?v=eZBvy2lqpsE
newbie
Activity: 27
Merit: 0
March 25, 2017, 08:09:22 AM
I kind of played with wattool and polaris editor and I reached the next resulting.

6x + 470 Sapphire Nintro 8 gb
ASRock B85 ANNIVERSARY
Intel Pentium G3250T @ 2.8GHz

162-165 Mh / s on Claymore dual 8.1 @ 669 watts on the wall  Grin

per card 27+

cca 101-103w per card, Others consume the rest of the system

gpu core 1050 / 820mV
mem samsung 2050 (strap 1625) 900mV

For me, the main energy saving and efficiency.
sr. member
Activity: 434
Merit: 251
March 25, 2017, 06:46:16 AM
pretty standard  speed , i have my sapphire 4gb REFERENCE @ 30.6mh/s 1230 core 2100 memory

130w from wall

Nitro+ or nitro?
hero member
Activity: 649
Merit: 505
March 25, 2017, 03:20:03 AM
pretty standard  speed , i have my sapphire 4gb REFERENCE @ 30.6mh/s 1230 core 2100 memory

130w from wall
sr. member
Activity: 290
Merit: 250
March 25, 2017, 01:22:33 AM
I always used rx 480 cards for my builds in the past , few days ago received my first rx 470 nitro cards order for my new build.
My first priority was optimizing the bios for ETH mining with low power consumption and high MH/s
GPU-z reporting 75.6 watts , the card real wattage is around 100-110 watts / card .
( Test bench idle power draw at the wall 68-72 watts , with gpu hashing total wattage is 170-175 watts at the wall )
I was able to push the card to the 29.5-29.8 MH/s range , with much more power draw , but never checked the stability on that speed , it was running for 15-20 minutes without any problem .
Played with the bios / timing / voltage , created a modded bios , there is my result :
If im not using the computer to taking screenshot's Smiley the hash rate is stable in the 29.2-29.4 MH/s range



This rx 470 4gb sapphire or no??

please link your bios

thanks
hero member
Activity: 1498
Merit: 597
March 24, 2017, 06:14:08 PM
I always used rx 480 cards for my builds in the past , few days ago received my first rx 470 nitro cards order for my new build.
My first priority was optimizing the bios for ETH mining with low power consumption and high MH/s
GPU-z reporting 75.6 watts , the card real wattage is around 100-110 watts / card .
( Test bench idle power draw at the wall 68-72 watts , with gpu hashing total wattage is 170-175 watts at the wall )
I was able to push the card to the 29.5-29.8 MH/s range , with much more power draw , but never checked the stability on that speed , it was running for 15-20 minutes without any problem .
Played with the bios / timing / voltage , created a modded bios , there is my result :
If im not using the computer to taking screenshot's Smiley the hash rate is stable in the 29.2-29.4 MH/s range

sr. member
Activity: 434
Merit: 251
March 24, 2017, 03:36:29 PM
I just picked up 7 x Sapphire Radeon NITRO+ Rx 480 8GB. I could not pass them up at $200 / each. We'll which memory they have have.
sr. member
Activity: 290
Merit: 250
March 24, 2017, 02:59:44 PM
Hi
Please give me best change bios RX 470 4gb sapphire nitro (hynix)
For mining ETH+Dcr
GPU clock and memory clock Huh Huh
And low power really  Huh
I have 1 power 1450 oc  Green for 6 gpu
sr. member
Activity: 434
Merit: 251
March 24, 2017, 05:43:11 AM
rx 470 4gb red devil (27ps)... mod bios...   1080/1950-1080/1975    27,9-28.3 mh/s  ETH/ETC and about 275 sol/s  on 1140/1900 ZEC/ZCL

You could do better by bumping the core clock somewhat - it's too low.


Tried it. 28.6 MH/s, but power consumption is growing strongly.

Yeah, I have my cards at 1150 (linux) for 31MH/s. It's a good balance, IMO.

Which model / brand do you have?
newbie
Activity: 50
Merit: 0
March 24, 2017, 01:43:47 AM
rx 470 4gb red devil (27ps)... mod bios...   1080/1950-1080/1975    27,9-28.3 mh/s  ETH/ETC and about 275 sol/s  on 1140/1900 ZEC/ZCL

You could do better by bumping the core clock somewhat - it's too low.


Tried it. 28.6 MH/s, but power consumption is growing strongly.
newbie
Activity: 50
Merit: 0
March 24, 2017, 12:27:12 AM
rx 470 4gb red devil (27ps)... mod bios...   1080/1950-1080/1975    27,9-28.3 mh/s  ETH/ETC and about 275 sol/s  on 1140/1900 ZEC/ZCL
legendary
Activity: 2294
Merit: 1182
Now the money is free, and so the people will be
March 23, 2017, 09:09:52 PM
well watts to hash and even price ratio, I'd say go for 470s honestly.
edit:  whatever is on a good sale in any case Smiley
legendary
Activity: 1960
Merit: 1005
March 23, 2017, 06:08:50 PM
So 480 or 470, I am getting tired of just wandering in what to invest.
hero member
Activity: 751
Merit: 517
Fail to plan, and you plan to fail.
March 23, 2017, 11:14:29 AM
this memory hynix or elpidia???
As mentioned, its Samsung memory
Did you used the 1625 or 1750 timings ? Any other modifications?
I used the 1625 strap for 30+ but the result wasn't very stable for me. I currently stick to lower clocks at 1125/1950 and 28mh/s.
2025 mem clock for samsung seems a bit low, especially for 30.2mhs.. So I'm guessing he used 1625.. I have been using 1750 but this makes me consider switching to 1625.. thoughts?
2025 seems low??? Wow man you must have really good chips, these are clocked at 1750 at stock so that's an OC of 275. Some cards were stable at this speed, and some werent, so I backed off to lower power stable
settings 1125/1950.
jr. member
Activity: 127
Merit: 8
March 23, 2017, 10:11:26 AM
Sapphire RX 470 4GB (Ref style) Memory Variants and their Max Hash Rates :

3: Samsung Memory Variant (31 cards average)
Cards with Serial Number beginning with A1640XXXXX or A1644XXXX have Samsung memory, easy to mod, perform the best, stable at high clocks
Stock : 1216/1750 - 24.6Mh/s (solo mining ETH)
Max : 1150/2025 - 30.2Mh/s (dual mining ETH and Pasc with dcri 9)

Hey.. great job you did there.

Did you used the 1625 or 1750 timings ? Any other modifications?

Thank you!

2025 mem clock for samsung seems a bit low, especially for 30.2mhs.. So I'm guessing he used 1625.. I have been using 1750 but this makes me consider switching to 1625.. thoughts?

Same here.. waiting for him to reply Smiley
sr. member
Activity: 689
Merit: 253
March 23, 2017, 09:39:25 AM
Sapphire RX 470 4GB (Ref style) Memory Variants and their Max Hash Rates :

3: Samsung Memory Variant (31 cards average)
Cards with Serial Number beginning with A1640XXXXX or A1644XXXX have Samsung memory, easy to mod, perform the best, stable at high clocks
Stock : 1216/1750 - 24.6Mh/s (solo mining ETH)
Max : 1150/2025 - 30.2Mh/s (dual mining ETH and Pasc with dcri 9)

Hey.. great job you did there.

Did you used the 1625 or 1750 timings ? Any other modifications?

Thank you!

2025 mem clock for samsung seems a bit low, especially for 30.2mhs.. So I'm guessing he used 1625.. I have been using 1750 but this makes me consider switching to 1625.. thoughts?
sr. member
Activity: 689
Merit: 253
March 23, 2017, 09:36:51 AM



What do you consider cheap electricity?
You can calculate the extra wattage dual mining uses and see if its worth it at whatever your electric bill is.. Just throwing a kind of random number out there but $0.05c per kw may be "cheap"
jr. member
Activity: 127
Merit: 8
March 23, 2017, 09:07:13 AM
Sapphire RX 470 4GB (Ref style) Memory Variants and their Max Hash Rates :

3: Samsung Memory Variant (31 cards average)
Cards with Serial Number beginning with A1640XXXXX or A1644XXXX have Samsung memory, easy to mod, perform the best, stable at high clocks
Stock : 1216/1750 - 24.6Mh/s (solo mining ETH)
Max : 1150/2025 - 30.2Mh/s (dual mining ETH and Pasc with dcri 9)

Hey.. great job you did there.

Did you used the 1625 or 1750 timings ? Any other modifications?

Thank you!
sr. member
Activity: 290
Merit: 250
March 23, 2017, 05:38:13 AM

3: Samsung Memory Variant (31 cards average)
Cards with Serial Number beginning with A1640XXXXX or A1644XXXX have Samsung memory, easy to mod, perform the best, stable at high clocks
Stock : 1216/1750 - 24.6Mh/s (solo mining ETH)
Max : 1150/2025 - 30.2Mh/s (dual mining ETH and Pasc with dcri 9)


HI

this memory hynix or elpidia???

my bios
1130/1945
27.300 m/h ETH
MY memory hynix

please help me
jr. member
Activity: 63
Merit: 1
March 23, 2017, 04:36:02 AM
Hi, i have

RX 470 Nitro+ 8GB (samsung) bios mod strap 1625 timing, -96mv, core 1050, mem 2050 = 74w @ 28,4Mh/s ETH

Its very efficient

The actual power from the wall should be more than 100W. Your value is from the GPUZ.

hm surprising,  on th wall 296w = 2x 470 8GB + i5-3450 @ 2core/1,6GHz 0,871v

I looked into hwinfo, there are several values. GPU core power, GPU chip power, GPU power in Vram.

So it could be -

GPU chip power GPU + VRM power in

70 + 49 = 119 * 2 = 238 watts Rx

119w per 1 RX 470 ist real?

-----

298-238 = 60 watts mother board + cpu, perhaps even minus 10% efficiency power supply.

The 119w per 1 RX 470 is about right.
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