Window type aircon (inverter)

[WallyWest]

Question....

Window A/C namin is from Panasonic (non-inverter) which on paper consumes 839W (EER Rating of 11.3 kJ/hW)

A Hitachi inverter consumes 849W (EER Rating of 12.7kj/hw)

Significant ba talaga savings if I change to an inverter?

I think of a non-inverter A/C as para kang nagda-drive ng M/T pero parati ka lang naka-primera and an inverter A/C as CVT na continuously ina-adjust ang gear ratio according sa load.