I ended up getting the Sapphire, only had it a couple nights - so still bringing it through the testing.
For reference, I'm comparing it to my Red Dragon Vega 56.
First night I was able to stabilize temps to about 70 but the Junction was still like 87ish. Core clocks are great - getting high 2000's with 5% Power Limit. Didn't really get much higher, even if I put the Power Limit higher. The only thing that increased was the Junction - I was hitting 104ish. Wasn't cool with that!
My Red Dragon NEVER got that high, not even close..and people said Vega was hot....poppycock...My Vega is WAY cooler than Navi thus far.
Gaming performance was as expected, I tried the Radeon Image Sharpening (1440P 32 inch curved right in my face)..couldn't really tell.
Mining..I got XMR Stak to work after trying a few other programs. It compiled the algo, ran about 900ish hash/sec (compared to 1850 on my Vega and 1450 on my Ryzen 9)...but would quit after an hour or so...weird driver stuff I imagine.
So, given I have an 850 watt PSU - I figured. Let's go for broke and plug the Vega back in (was to go to my daughter for the rig I'm building her). YOLO, let's do it.
Well on full load, everything holds!!! My Kill-A-Watt should arrive today...my brother stole my old one...that will deserve it's own thread once I get it.
BUT......with the Dragon below the Pulse, both GPU and Junction temps have jumped...I should note my case is open, and I have enough fans (and an AIO).
GPU goes low 70's...but junction hovers between 96-103C. I tried placing a fan directly behind the rear of the Pulse (a lot of hot air comes out back and directly out front from the heat pipes). It didn't affect the temps...so back on the VRM for that fan (3900 on a X370...gotta take care of my VRM...ya know
Just to be a jerk, I ran Heaven on the Navi and Mined on the Vega just to see if that affected the temps. A tiny bit - but nothing worth writing home about..changing things in Radeon settings seems to get finicky if you go to tweak your Navi - while Vega is doing it's thing...got a couple driver crashes there.
POINT IS...THE MERE FACT the second card is below it (Navi) seemed to raise the temp. It seems to not have the physical room enough with fresh enough cool air to get to where I was temp-wise the first night.
SECOND TAKE HOME - Navi is hot...inherently hot. MUCH hotter than my Vega or my Polaris's ever were. Am I uncomfortable with that? The Junction temps in the high 90's, low 100ish - yeah, I am to be honest. This is supposed to be 7nm and more efficient.
I'm at the point (especially after watching reviews on Gamer's Nexus etc.) to thinking maybe the TIM on the GPU wasn't good. I'm very tempted to take it apart and toss some IC Diamond on this thing...because my temps DO seem higher than most things I've seen. But my clocks (I forgot to mention 950 on mem all day long!!) are seemingly better than a lot I've seen out there, and I'm only on 5% PowerLimit (remember 10-15% Power wasn't yielding much better clocks). Mem temps and VRM is fine...well with what I expected (especially after seeing the GN tear down vid..they did an UNREAL job on the mem/VRM design!!)..
So it's just the GPU and Junctions that have me worried...do you guys think it's worth the tear down? Maybe I got good silicon but a bad TIM application?
Lastly, drivers do need to be more mature.....all in due time. I've also noticed stutter in-game that was NOT present in the Vega. Driver? Or HBM2 vs. GDDR6? It was pretty bad (on SOTTR bench and Apex AND couple times PUBG) - I'm guessing driver.
It's a pretty interesting card though. Sent my daughter a pic of it all in the rig, told her the Dragon must still mine (to help pay...no idle clocks in my rig, ever)...so new plan for her GPU!
Pic is first Heaven run this morning. Cool room (AC on), however long it took me to write this for length of time...Vega is sitting idle below it (not mining, just a behaving Dragon). Superposition ran a bit hotter, with lower clocks..higher clocks make me feel better though
Temps are cooler this morning
...I did tweak the voltage curve as you can see...this seems to provide the best clocks with the lowest temps I've found so far.
Hope this helped guys!