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The strongest member of the Phanteks AMP line achieves high performance but not silent operation. Given the efficient platform, the fan speed profile could be more relaxed. This unit doesn't have the oversized heat sinks that the similar-capacity Asus ROG Strix model utilizes, which is based on the same platform, but still, the thermal images that we took prove that there is no need for such high airflow. Moreover, although the ripple suppression is good, yet with lower ripple levels at +12V (<20mV), this power supply would be notably close to its primary opponent, the Corsair RM750x.
The recent additions in the ATX spec, which apply from 2020, require among others for higher than 70% efficiency at 2%, of the PSU's max-rated-capacity, load, and for a power-ok delay signal within 100-150ms. The AMP 750W doesn't meet those requirements, so at some point, Phanteks should consider upgrading the platform to be fully compatible with the newest ATX spec. The only problem is that this will affect the production cost, hence the final price of the product will be affected.
