Bitmain recently released the APW3++ 1600 watt power supply for $145 (including shipping). This power supply can now power an Antminer S9, S7 or L3+ on a standard USA 15 amp 110v power outlet. We wanted to see how this new power supply compared to the EVGA 1600 G2 power supply. We tested both power supplies using the stock L3+ miner frequency level of 384M and then with the overclock speed of 462M. Our results can be found below. 

Stock 384M @ 504 mh/s
AW3++ (850w)
EVGA 1600 (840w)

Overclocked 462M @ 610+ mh/s
AW3++ (1025w)
EVGA 1600  (1015w)

Our data revealed that increasing the frequency to 462M increased the miners watt usage but also increased hashing rate to 610-650mh/s (stock is 504 mh/s) The EVGA 1600 was slightly more efficient (10 watts less) when compared to the APW3++.  The EVGA 1600 G2 retails for $370 and the APW3++ costs around $145 depending on your location. Since the EVGA will set you back $225 more than the APW3++ and only uses 10 watts less, it would take approximately 8,333 days to begin to see any savings (using our $0.12 price per kilowatt cost for power). It is highly unlikely the power supply would last the 22 years to break even with the APW3++.

From our results, the APW3++ looks to be a great power supply at a reasonable price. We were very happy with the results from both power supplies specifically after increasing the frequency of the L3+, as the overclocking led to a 20% increase in total hashing power.

Here is a video showing our results

https://youtu.be/L0yFuh7Vvv4