Dalton's 56-yard scoring pass to A.J. Green on the Bengals' first possession set the tone. The Cincinnati signal-caller finished with 21 completions in 30 attempts for 199 passing yards without an interception.
Four different receivers hauled down a scoring strike for the Bengals (4-5).
Giants quarterback Eli Manning, meanwhile, was plagued by turnovers, managing just 215 aerial yards on 29-of-46 efficiency with two interceptions and lost a fumble.
The NFC East-leading Giants (6-4) stumbled into a bye week with a two-game losing streak.
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