The NVIDIA GTX770 has had a luke warm reception by all accounts. Based on the older GTX680 rather than the ground breaking GTX TITAN/GTX 780, many look upon the GTX770 as a simple refresh. To be fair, that is not far from the truth but NVIDIA have not simply raised the clockspeeds and have done with it. Improved power delivery, memory overclocking and GPU Boost 2.0 make the GTX770 quite a formidable GPU. There are however few reference designs available with NVIDIA giving their board partners free reign to add their own modifications. Some chose simply to bolt on a custom cooling design to the reference PCB. Others added to the modifications by redesigned the PCB. The ASUS GTX 770 DirectCU II OC is one such example.