Yeah, it’s going to be a pretty sweet release.
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Downloaded all this just for kicks and to see what the Vega 56 can do. So far have just run Fishy Cat (it defaulted to CPU render btw, so had to change that to OpenCL in the User Preferences) and got 4:48.08. Neat stuff for sure.
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Are you on Linux/Windows?
Windows 10. I’m also running undervolted to 1060mv and 940MHz on the HBM2.
Slower results than the chart for bmw: 2:31.04
Is it a nightly build of blender? Or just 2.79rc?
The new patches were basically integrated just 2 days ago and should shave 30 seconds off that time.
PS: Cycles render can be an absolute vRAM and GPU core hog. I haven’t tried the hashing BIOS mods yet for Blender, but I’m not expecting them to do all that much.
I grabbed the top of the list in the link you posted: blender-2.79-718af8e-win64.zip.
That said, I am curious to try HBCC, I do have 32GB of system RAM so taking 12GB of that just for a benchmark should be fine. I’ll turn it on and see what happens.
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IF you feel like it you can also try the 2.8branch. But It’s highly likely to be disfunctionaol 
https://builder.blender.org/download/blender-2.80-7dfcbe0-win64.zip
Well turning on HBCC took down the system. Oops. 
New driver update and after a fresh reboot, BMW rendered in a blistering 1:43.86. Still undervolting to 1060mv, 940MHz on RAM. The GPU peaked at 1624MHz but settled about 1571MHz. Same Blender build and all that.
Edit: ran three times for an average of 1:42.527
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That is about the performance I expect from Rx Vega 56.
Very nice to see that the driver team are patching things. 
Seems as though Blender is not memory bandwidth-dependent, as I went ahead and flashed the 64 BIOS and am running the memory at 1000MHz, showing full speed in Wattman during the BMW render: exact same time. So another data point, Blender is gonna want those compute units. It dropped a few seconds with a little higher core clock speed but nothing substantial.
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I will run these benchmarks on the latest stable version with two Vega 64s once I have a CPU in the rig. So next weekend earliest.
Will these benchmarks work with Radeon Pro Render, or are you forced to use Cycles?
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These benchmarks use Cycles which is built for OpenCL.
Good results so far with Vega: The VEGA Whatever Thread! ANYTHING on VEGA
I’d be curious to see if dual 580’s get it done too. Do they work in parallel or like a mirrored GPU sharing the same VRAM? I’ve never owned dual cards.
OpenCL only in the AMDGPU-PRO driver right ?
I’m a hacker at heart.
So my system has two drivers simultaneously.
mesa-opencl perf is improving, but this was done with the amdgpu-pro opencl component patched into the open amdgpu driver.
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Here’s the result from a first test. 29:40
Includes the time taken by the CPU to sort objects and setup scene + kernels.
Second test: 18:53
I may have been limited by thermals since it was on the automatic fan profile and hitting 75C with very low fan RPM’s.
i still consider between dual nvidia 1070 or dual RX 580. But i prefer dual RX 580