The 1545 clock sounds nice as long as it can OC around 1700 without to much over voltage. The RX580 of this version was 1430/8400. So if can get close to 1700 with the 8400 ram it will make a strong card if the price is around $300. If you have a 480 you may want to upgrade if only because you have a free sync monitor, because you will get a very good boost, but that really the only reason. Chances are you will find a Vega 56 for not much more next month on sale that is still stronger.