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[Official] AMD R9 390/390X Owners Club - Page 1117

post #11161 of 11375
huh, even with a core speed of 1200, not a huge improvement over 1133, even with 1133 and 1375 memory.

http://www.3dmark.com/compare/spy/1536736/spy/1537220/spy/1570372

It was hot as balls though, compared to the other runs. see?


superposition at 1200 core


1133 core
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post #11162 of 11375
I took your 1133 bios, touched up the core clock to 1150, bumped vram voltage from 888 to 950 and clocked at 1375. It runs pretty good, about as cool as your 1133 bios, so thats good. I need to figure out this default vram voltage to get the 1500 running. I want to test actual gameplay with the 1270 ram speed vs default 1500 to see if I notice any difference. a few frames, not a big deal...but like 10-20+, i may consider just touching up freq over 1300. GOing to test the 1375 vram speed now.


Chris89, thanks for all the work you do to help people out...really amazing! Thanks a lot man.
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post #11163 of 11375
Your welcome man yeah those thermals are a pain haha i always recommend reference for this reason as they don't have these thermals issues if you upgrade the thermal pads.

PS - I wanna throw up some of my Superposition results... been on RX 480 for a month haven't even touched the molten 390x in a minute...

I'll mod something up see how she runs haha PS - Lacking results from T7500 PSU... big scores on Dedicated GPU only 1000W PSU.
Edited by chris89 - 4/15/17 at 5:38pm
post #11164 of 11375
true, true. I will probaby do that in future.

So, strange thing...the 1150/1375 ran decent...i bumped the ram speed to 1425, ran even better, slightly hotter.

Max core was 67, VRM was 73. no sweat I thought.

My Valley score was almost 3000, it was 2922.

I decided to pull the volts down just a tad via Wattman. Drastically lowered my score.

I think with your custom power build in the bios, the software hosed up the actual programming.

lower thermals and power consumption a lot.


with a hit to performance.
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post #11165 of 11375
1144/1500 sapphire r9 390 nitro


1144/1500



post #11166 of 11375
Here's my base score 1st time run on 16.9.2 WHQL reference 390x on 290x reference blower fan. Only on 1 Xeon at the moment. The other one cut out, in the process of fixing it.

It appears I'm guessing topping out around 3,200 to 3,400 points. Probably more if I have a score to aim for. Probably something like 1070'ish. I'm on PCIe 2.0 though at 2.6Ghz.

1133mhz core : 1250mhz memory 888mv

We could only imagine the max of my card...

1250mhz core : 1758mhz memory 1000mv



2nd Run through :

1207mhz core : 1250mhz memory 888mv



Only Up To Score : 2999 : Pretty weak cheese if you ask me... PCIe 2.0 limitation severely.




Edited by chris89 - 4/15/17 at 7:43pm
post #11167 of 11375
nice...those extra 4 compute units really shine at lower clocks lol. Man, if I waited just another month in Jan 2016 that R9 390x was about same price I paid for the 390. Live and learn...

Nice scores man! thumb.gifthumb.gifthumb.gif
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post #11168 of 11375
Can you explain the high scores with lower memory clocks? Is it cause of the higher clock speeds and low power or have you tweaked the ram timing?
post #11169 of 11375
Thanks. I don't know how to adjust timings but best left stock anyway. Timings seem to only help mining anyway.

Yeah 1,250mhz memory maybe 1,270mhz memory on 888mv is only possible on this PSU. Once I went to 1563mhz memory at 1000mv, max only went up to near 30fps but always shut down before complete. Need a better PSU or dedicated 1kw, but didn't care enough to go through all that.

Yeah for sure, go with the best model ya know? haha I like getting them used or refurb like my 390x for 225. You need a Ryzen at 4Ghz even R7 1700 to let the 390x shine just a little bit.

The PCIe bus limits this card... If it were speced out for "AMD Infinity Bus" specs on the PCIe that connects up to the "Infinity Fabric" then no bottleneck would exist on this highly limited PCIe bus. Even 4.0 & 5.0 will limit the 390x. Get the system ram to the speed of the video ram at 320GB/s+ across Copy/ Read/ Write on System Memory & Video Memory now that's where it's at.

The boards would be inline with PCIe specification yet for AMD GPU's would use the "Infinity PCIe Bus" that rides on no limitation with the system memory.

So yep, that's about it for now. haha thumb.gif
post #11170 of 11375
Quote:
Originally Posted by RaFDX View Post

Can you explain the high scores with lower memory clocks? Is it cause of the higher clock speeds and low power or have you tweaked the ram timing?
for me, or for chris89? we have R9 390, having 40 of 44 computer units...he has the 390x in all of its glory...that is the difference.
Quote:
Originally Posted by chris89 View Post

Thanks. I don't know how to adjust timings but best left stock anyway. Timings seem to only help mining anyway.

Yeah 1,250mhz memory maybe 1,270mhz memory on 888mv is only possible on this PSU. Once I went to 1563mhz memory at 1000mv, max only went up to near 30fps but always shut down before complete. Need a better PSU or dedicated 1kw, but didn't care enough to go through all that.

Yeah for sure, go with the best model ya know? haha I like getting them used or refurb like my 390x for 225. You need a Ryzen at 4Ghz even R7 1700 to let the 390x shine just a little bit.

The PCIe bus limits this card... If it were speced out for "AMD Infinity Bus" specs on the PCIe that connects up to the "Infinity Fabric" then no bottleneck would exist on this highly limited PCIe bus. Even 4.0 & 5.0 will limit the 390x. Get the system ram to the speed of the video ram at 320GB/s+ across Copy/ Read/ Write on System Memory & Video Memory now that's where it's at.

The boards would be inline with PCIe specification yet for AMD GPU's would use the "Infinity PCIe Bus" that rides on no limitation with the system memory.

So yep, that's about it for now. haha thumb.gif
Yeah, that is legit. I guess when this "Optane" memory thing is more widespread it would be faster...not quite 320GB/sec, closer to 32GB/sec...but better than what we currently have.
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