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RX 480 overclock discussion - Page 15

post #141 of 433
Every card is different. ASIC isn't the end all in what your card can do. TIM application and thermal pad quality on the vrms seem about as important. 1300 at stock voltage on a 480 is very doable and some cards shipped that way. 470... I don't know. Try it biggrin.gif
post #142 of 433
Quote:
Originally Posted by vr028 View Post

Heres the link to the product page, i havent seen any reviews on it but its the cheapest non reference i could find in Australia.
http://www.xfxforce.com/en-us/products/amd-radeon-rx-400-series/rx-480-gtr-black-8gb-dd-led-rx-480p8dba6

originally it was on 1175mv but ive had it on 1150mv for about a day and half now with no issues.
Fans are set min 1330 howver they turn off under 50c i havent found a way to ovveride this. max 3800
with the target temp set to 70 its virtually inaudible compared to my old windforce 7950
power limit is +50%

My reference sapphire rx480 has an asic quality of just over 90%.
post #143 of 433
Someone was using the last 2 states at 1300 mhz does that increase stability in games ? like less fluctuations in frames / performance?

I found a memory error report in HWinfo about GPU memory error so i can test the small OC on the Hynix 1750mhz memory of the 470 nitro to 1800 but didn't had monitoring up when i tried it and i reverted it back fast.
Someone said that Hynix ram doesn't OC rly well so i am a bit afraid to try it out.

From my tests tonight running at 1300mhz 1080mv i got increased scores at Firestrike the first time i ran it but the 2-nd and 3-rd even with increased MV's i got the same results that i was getting with the stock power limit and the card throttling down from 1266. It seems like my FX 8350 even OC-ed is bottle-necking the card and i am getting the same Firestrike results with 1200 and 1300 mhz. Is that possible?
If so maybe my best case scenario would be 1200 and under-volting until i change the CPU ?
Edited by slavovid - 8/22/16 at 2:34pm
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post #144 of 433
Quote:
Originally Posted by danjal View Post

My reference sapphire rx480 has an asic quality of just over 90%.

Have you got any VRM cooling? saw you put the 7870 cooler on.
Do you plan to use a waterblock in future?
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post #145 of 433
The key is to find the highest frequency at the lowest stable volts if your benching this card. The power limit holds the performance back a lot. I haven't used the 470 but I got better results undervolted on stock speeds then I did overclocked while I was on air. Other users were saying the nitro stock bios had too high of volts by default and I'm not surprised it's hitting it's power limit. I hate noise unless I need it for that last 5 to 10 fps to make a game playable. But that's me. That's why have $800 cooling equipment cooling $600 of components. So I can turn the fans way down. If I had the means, there's a company that makes Semi truck radiators in Detroit all copper with a Detroit Radiator Company stamp on the front. Something like a peterbilt rad in the 35X34X3.75 inch range. I'd love to have a couple a semi radiators on the wall and go fanless without having to compromise on my overclocks at all. Plus that would look really cool. (I grew up in the Detroit area.) Conversely, I also thought about running tube through the floor and having my rads and fans in the basement. It's a couple of degrees cooler down there anyway. I just can't justify drilling a hole in the floor. As it is, my water only moves a half a degree to 1 degree when my system is on load. Noise is in the 20 decibel range. No reason not to overclock and no reason to spend that kind of money right now. Good luck with your undervolt. My 480 could run 1266 at 1.028mv for reference. Others did 1.025
post #146 of 433
Quote:
Originally Posted by vr028 View Post

Have you got any VRM cooling? saw you put the 7870 cooler on.
Do you plan to use a waterblock in future?



I doubt I watercool it.. I have heat sinks for the vrms, need to put them on when I get time...That pc is a back up computer...

If I watercool anything it will be my main pc and it will have a zotac 1080 amp edition by the end of the week.





from what fooling around I've done with my 480, I've hit 1420core/2150mem reliably, anything higher on the memory I start getting errors with the power limit at max... I'm pretty sure the cards are voltage locked, cant remember what voltge I have the memory on, i know its a bit higher than stock. I can run at 1420/2200 but I get memory errors, my vrms dont go over 90c without heat sinks..

If I game on that computer I usually back it off to 1350/2150 and it runs pretty decent..
Edited by danjal - 8/23/16 at 8:16am
post #147 of 433
I thought this might interest those of you involved in this thread.
I'll have to run it again to get those two measly points once an "approved" new driver is out.

RX 480 @ 1460/2250

Compare Link

xptP4kW.jpg
Edited by YBS1 - 8/24/16 at 7:17pm
post #148 of 433
Quote:
Originally Posted by YBS1 View Post

I thought this might interest those of you involved in this thread.
I'll have to run it again to get those two measly points once an "approved" new driver is out.

RX 480 @ 1460/2250

Compare Link

xptP4kW.jpg

Have you checked memory errors? Are you getting memory errors? I could run my 480 clocked like that on air, was just getting memory errors, but no artifacting.


It also tells me I need an I7-6700k, its just mo money mo money..


Edited by danjal - 8/24/16 at 8:26pm
post #149 of 433
Your Physics score is about 1500 more than my highest at 5.1 ghz on a 4790k. Yeah. I guess I need a new cpu. lol I was just trying to get my system stable at 5.1 to make another sucide run to see if I could come close to your score, but damn i can't put my vmem that high either. 2220 is my absolute max for bench and that's at 1050 for the controller. 2215 is more stable for benching and more likely to give me a stable run. 2210 or 2205 is better for everyday for me. Others are much lower. 2170 to 2150. That's a really nice OC if it's not holding you back with memory errors. a few hundred for benching would be ok. Even a 1000. If you're under that on this run. 0.o
post #150 of 433
I don't know about memory errors, but I did test to make sure the score continued to climb as I increased the memory clocks only though. It continued to rise all the way up to 2250.
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