We review that Radeon RX Vega 56 with 8GB graphics memory. At 399 bucks this is the what could be affordable AMD graphics card in that new Vega range. It quite honestly might actually be the better proposition value for money wise.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips