According to multiple sources that RX 480 can achieve 1.5GHz on overclocking. The upcoming Radeon RX 480 is expected to compete directly against the Radeon R9 Nano and the GTX 980, which just had a $25 price drop.
AMD RX 480 hitting the $199 price point with the performance level of the R9 Nano and GTX 980, we’re looking at one of the best price/performance graphics cards up to date. Additionally, if we can get 1.5GHz+ overclocked out of it, then it can be the best 1080p gaming card ever. The new Radeon RX 480 will supposedly reach 1.4GHz on its GPU easily, with 1.5GHz only require little additional tweaking. Also previously revealed PCB picture shows that even the reference design has 6+1 phases VRM and the GPU only consume 100W of power under gaming loads with 60C core temp; which translate it has additional juice and overclocking headroom.
With custom AIB partners card from ASUS, MSI, GIGABYTE, SAPPHIRE and others we may see 1.5GHz OC out of the box. All of this makes AMD Radeon RX 480 very interesting and worth waiting for if you’re looking to buy a new GPU.