Sapphire Radeon 300 Series Lineup Leaks onto the WWW
AMD officially confirms VSR support for Radeon R9 300 and R7 300 graphics cards | VideoCardz.com
AMD officially launches Radeon R7 300 series graphics cards
Are you ready for GIGABYTE's AMD Radeon R9 300 and R7 300 Series?
What do the R9 300-Series actually consume in terms of wattage, here you go - AMD Radeon R9 390X, R9 380 And R7 370 Power consumption stress tests. : r/pcmasterrace
ASUS, PowerColor And Sapphire's AMD Radeon 300 Series Graphics Cards Are Now In Malaysia - Lowyat.NET