But is that the new driver that is responsible or new windows?

anyone have a good optimization for cryptonight heavy or light for vega 64? I get 2k hash on regular cryptonight but I get around 1400h/s on cryptonight heavy and 16600h/s on cryptonight light

The small hash rate drop I saw is due to the Windows 10 update that dropped yesterday.

I loaded the new AMD driver and the only issue I noted was that OverdriveNTool doesn't spin the fan up on one of my two Vega64 when I command it.  Once I start the miner up - it spins up.  Not sure why it is acting that way now.  Hash rates are no difference vs. the previous driver.

I suspect while the situation with the newer Adrenaline drivers is much improved the blockchain drivers are still a little faster for mining.  With my Vega64 clocked 1408 core and 1100 memory I'm getting 1950 h/s.  With the blockchain drivers it would be 100 h/s more than that.  I don't want to deal with the issues those drivers have especially on a system like this where it isn't a dedicated miner.

Regular Vega 56s and 64s do only about 1400-1500h/s on CN-Heavy. The exception are Vega Frontiers. They do 2350H/s on CN-Heavy. Vega Frontiers are the kings on all the cryptonight algos.

thanks for the tip, got 4 and currently mining Monero. After I water cool them next week will try CN-Heavy 

I have two frontiers , how do you get them hashing so hard? mine only do 2k max
im using the powerplay settings for vega 64

Can you provide some hints on where to find those specific power play tables ?

  thanks

The OhGodACompany team have announced that they may start working on a (devfee) hashrate fix for Vega cards. Will we finally hit the theoretical limit of 70+ MHs on Ethereum? 

Lmao wut? Complete bullshit. Even if it was true you would still make more money on CN-7, CN-LiteV1 and CN-Heavy over Ethash. 70Mh/s barely makes it somewhat an option.