Under the Hood
Here are a few pictures showing the layout and components inside the EVGA SuperNOVA 750 G2 and 850 G2 Gold power supplies. Internally the two units are very similar as you would expect as they are both built upon the proven Superflower Leadex Gold platform. Superflower is a very capable OEM and one of the few who can go head-to-head with Seasonic. Superflower is the same OEM that EVGA uses for several of their very successful higher output, premium power supplies.
The two new EVGA G2 power supplies utilize an LLC resonant converter topology to minimize switching losses and help boost efficiency. Two DC-to-DC converters are used on the secondary to produce the +3.3V and +5V minor rails from the +12V main section.
All of the capacitors used inside the new 750 G2 and 850 G2 PSUs are high-quality Nippon Chemi-Con electrolytics with a few solid polymer caps located on the DC-to-DC converter boards. The 750 G2 incorporates two primary capacitors rated for 330 uF, 400V and 105°C (the 850 G2 uses one 330 uF and one 390 uf). The overall component layout is clean, leaves room for good airflow and the soldering appears good.