Testing conducted by AMD Performance Labs as of June 10, 2016 on the Radeon™ RX 480 8GB and R9 380 on a test system comprising Intel i7–5960X, 16GB DDR4–2666 RAM, GigabyteX99–UD4, Radeon Software Crimson Edition 16.1.1, and Win10 64–bit. Using the Steam VR Performance test, Radeon RX 480 scored 6.3 and Radeon R9 380 scored 3.6. Performance may vary based onuse of latest driver versions. Test results are not average and may vary.
Source: Radeon RX 470 Benchmarks