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AMD R9 285 / 380 / 380X Tonga/Tonga XT Owners Discussion Thread - Page 36

post #351 of 548
How does a single 380x handle 1080p gaming? Mainly new AAA
post #352 of 548
Quote:
Originally Posted by Gdourado View Post

How does a single 380x handle 1080p gaming? Mainly new AAA

Decent if the rest system is up to date.
post #353 of 548
Quote:
Originally Posted by Gdourado View Post

How does a single 380x handle 1080p gaming? Mainly new AAA

Pretty well, can't play most new games on Ultra, but High or Very High should be doable (assuming your system is up to date).
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ST31500341AS SDSSDA-240G-G25  SH-S223C cooler master 212 
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post #354 of 548
My 380X isn't throttling due to temperature.

How I check if it is throttling due to power limit or voltage?
post #355 of 548
Quote:
Originally Posted by DarkShinobu View Post

Just curious, do you have any pictures of your card now with the 7870 cooler?

Btw guys, one question, whats the highest safe stock voltage Tonga supports?



I did have a Bgears 120mm on it. Made 4C lower temp at full load. 62C with the Arctic F9 fan on it. That is plugged in to the case fan controller

Daily use. core clock 1075. memory 1375, +10% power limit, 0.0 increase in volts

Benchmark use. core volts +.045, Power limit +19%, core clock 1150, memory 1410. Can play games about 10-15 minutes with this setting, then it will freeze. Kombuster, Unity Valley and 3Dmark work fine and show no artifacts.

Cooler fan picture before slicing, dicing and fitting to the 7870 cooler. Used ghetto style cable tie to hold together. There is no contact with all the memory to the cooler. But there is now.




7870 and 285 side by side


I ran the 380 for a week before I did this to it

note: The 380 cooler only cools 1/2 of the memory. Why ?

When the rest of the plumbing comes in matching the speeds fun begins.
post #356 of 548
So if crossfire 380X have the same performance of a fury X (as someone said), how much better is a pair of 380X vs a single 390X?

Cheers!
post #357 of 548
Quote:
Originally Posted by OrSpeeder View Post

My 380X isn't throttling due to temperature.

How I check if it is throttling due to power limit or voltage?

I don't know if the 380x supports it but GPU-Z has a sensor called PerfCap Reason near the bottom. It will show some different abbreviations in the graph that give you a reason why GPU performance is capped.


PWR = Limited by total power limit
Thrm = Limited by temperature limit
VRel = Limited by reliability voltage
VOp = Limited by operating voltage
Util = Limited by GPU utilization
post #358 of 548
Quote:
Originally Posted by Gdourado View Post

So if crossfire 380X have the same performance of a fury X (as someone said), how much better is a pair of 380X vs a single 390X?

Cheers!
FWIW I have a pair of R9-285 ITX I wanted to Crossfire in slot2, and slot 4 but the ITX cards almost touch allowing no airflow into the 2nd card.
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post #359 of 548
Quote:
Originally Posted by Derp View Post

I don't know if the 380x supports it but GPU-Z has a sensor called PerfCap Reason near the bottom. It will show some different abbreviations in the graph that give you a reason why GPU performance is capped.


PWR = Limited by total power limit
Thrm = Limited by temperature limit
VRel = Limited by reliability voltage
VOp = Limited by operating voltage
Util = Limited by GPU utilization


Yes, that is exactly what I want to know!

My nVidia laptop displays this.

Do any AMD GPU at least have this, at all?
post #360 of 548
Something like this may work on the hottest one. When I ran mine in Crossfire there was 20C difference. The lower one ran at at 53-55C(GPU 1) and the upper one ran at 71-73 C (GPU 0). I believe the upper one (GPU 0) failed because of the constant 73C when I was gaming. These type 7870 have bigger coolers than 285s and 380s. I used the cooler off a dead Gigabyte Windforce HD 7870. The Windforce also had thermal tape on the memory and the HIS 285 did not. As soon as the rest of the plumbing gets here I am going to watercool the one in the hot spot(380) & air cooler the 285 in the cool spot. 380s have a larger cooler than HIS 285s. I used the fans off the 285 and added a fan to the end. It don't matter much if the end one is pushing or pulling because their is nothing in the way (no PCB). I used a coping saw, diagonal cutters, needle nosed pliers and a fixed blade to remove shroud pieces and bent fins the clear caps and provide clearance for power plugs. Cable tied the whole together. The CPU screws are the same distances and length. Dropped full load to 55C full load at 1150 core speed with +0.050 core volts and +20% power limit and with a 120mm fan on the end. I could have just as easy had the fan pull air through the end.

http://www.ebay.com/itm/PowerColor-HD7870-Myst-Edition-2GB-Non-working-For-Parts-or-Repair-Only-/201582844597?hash=item2eef461ab5:g:XX0AAOSwl-FXM-ry

I think the windforce may be longer?

If the 7970 or 7950 GPU block screws are in a 53mm square like the 285 and 380 maybe one of those can be altered to fit also?
The distance from the GPU block screw (7870, 285, 380) to the bracket is 90mm. If it is the same those could be altered to fit also ?
I think the 380X is also the same ?


The upper heat sink is the 285 heat sink and the lower MSI 380 heat sink. A 6" rule (152mm) is on the 285 heat sink.
Edited by warpuck - 6/7/16 at 4:07pm
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