Hi,

there is an update of Cast XMR available.

Cast XMR now supports CryptoNight-Heavy.

CryptoNight Heavy is different, the read/writes are smaller but use a larger "scratch pad" so the hash rates are not comparable with classic CryptoNight.

Here are some first performance values (tested with 18.3.4 drivers):

Vega 56  945 MemClk: 1450 Heavy Hashes/s
Vega 64 1025 MemClk: 1550 Heavy Hashes/s
Vega FE 1025 MemClk: 1640 Heavy Hashes/s
RX 570 Compute Mode: 850 Heavy Hashes/s (Polaris picks up!)

Regards,
glph3k

Cast XMR Version 0.9.5 (2018/04/14)
  - 0.5% performance improvement for the CryptoNightV7 kernel
  - support for CryptoNight Heavy set --algo=2 to mine:
    - Sumokoin (SUMO)
    - Haven (XHV)

Download Cast XMR 0.9.5 for Windows (64bit)

SHA256 hash of cast_xmr-vega-win64_095.zip:
46edbb6e52ada7eafaa05000e055fbbd5ce1f1cab134d763abdd8598c8610a09