You can actually go 50 MHs+ on a vega 56 with Hynix. This one can go 52 MHs+ at 1090+ core.
x x
xGPU: PCI 0000:0b:00, Radeon RX Vega 56 8.0 GB, BIOS: 113-376XL-UO2, Mem Info: Hynix HBM H5VR32ESM4H_REV1 x
x Clk: 991Mhz, P-State: 1, Mclk: 960Mhz, Pwr: 104W, FanSpeed: 76%, Volt: 0.812v, Temp: 44C, Junc Temp: 49C, Mem Temp: 59C x
x x
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x--------------------- GPU Status ------------------------------------------- x
x[2020-05-02 06:49:25][info][miner/0]: [2020-05-02 06:49:23] GPU 0 [44C, fan 76%] ethash: 50.24Mh/s, avg 50.12Mh/s, pool 42.55Mh/s a:30 r:0 hw:0 x
x[2020-05-02 06:49:25][info][miner/0]: [2020-05-02 06:49:23] Total ethash: 50.24Mh/s, avg 50.12Mh/s, pool 42.55Mh/s a:30 r:0 hw:0 x
x[2020-05-02 06:49:25][info][miner/0]: [2020-05-02 06:49:23] ----------------------------------------- Pool Status ------------------------------------------ x
x[2020-05-02 06:49:25][info][miner/0]: [2020-05-02 06:49:23] us1-etc.ethermine.org ethash: 50.24Mh/s, avg 49.59Mh/s, pool 42.55Mh/s a:30 r:0 x
Impressive...full PPT+Timings you use please?!Drivers?