Friends Sapphire R9 390 Nitro died suddenly ~ 2.5 years later after buying second hand. No Post no fans spinning. After 4 years in Service RIP. It is a beautiful beast. : r/Amd
Sapphire R9 390 Nitro 8 GB Review | TechPowerUp
Sapphire Nitro R9 380 and 390 Video Card Review
AMD Radeon R9 390 now offered with 4GB memory | VideoCardz.com