AMD - "All-in-all, the Sapphire RX Vega 64 Nitro+ Limited Edition is undoubtedly a fine aftermarket Vega 64 card, delivering significantly better performance and lower temperatures than the reference design." Take a
Sapphire's Radeon RX Vega 56 and 64 Nitro+ Limited Edition cards were designed expressly for overclocking - HardwareZone.com.sg