Here we have the official benchmarks of the Sapphire RX 580 2048SP and according to the numbers it performs 10% better as compared to the AMD RX 570. Other than that the Sapphire RX 580 2048SP is ...

Today AMD launch their new RX590 - and its actually ... Boost 1545MHz Sapphire Nitro+ RX 590 Boost speed 1560MHz. (Sapphire Nitro+ RX 580 Boost speed 1380MHz, memory 8000MHz) 2,304 Unified Shaders ...