Generac iQ5200 vs GenMax GM3300i
What is the difference?
The Generac iQ5200 has 3.9 kW of running power, 5.2 kW peak. The GenMax GM3300i has 3 kW of running power, 3.3 kW peak.
The Generac iQ5200 is dual-fuel, the GenMax GM3300i runs on gasoline.
The Generac iQ5200 has a 3.2 gal tank, the GenMax GM3300i has a 1 gal tank.
The Generac iQ5200 weighs 111 lb, the GenMax GM3300i weighs 47 lb. The GenMax GM3300i is easier to carry.
Specs side by side
| Generac iQ5200 | GenMax GM3300i | |
|---|---|---|
| Running W | 3900 | 3000 |
| Peak W | 5200 | 3300 |
| Fuel | dual-fuel | gasoline |
| Tank (gal) | 3.2 | 1 |
| Run time @50 % (h) | 9 | — |
| Noise (dB) | — | — |
| CO shutoff | yes | yes |
| Weight (lb) | 111 | 47 |
| Warranty (yr) | — | — |
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Specs as read from manufacturer pages on 2026-10-25 / 2026-10-31. Specs one maker does not list are left out of the comparison. Sponsored links; we may earn a commission.
Common questions
Which has more running watts, Generac iQ5200 or GenMax GM3300i?
The Generac iQ5200. More running watts: 3900 W vs 3000 W.
Which is lighter, Generac iQ5200 or GenMax GM3300i?
The GenMax GM3300i. Lighter: 47 lb vs 111 lb.
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Compare other models → · All Generac models · All GenMax models