Tyler Wilkins, pictured, was involved in a collision in December 2022.
His friend was in the passenger seat and sadly died at the scene.
Tyler was too intoxicated to drive.
He has now been sentenced to three years and six months in prison for death by careless driving whilst over the limit.
Senior investigating officer Sergeant Philip Hanham, of the Serious Collision Investigation Unit, said: “I hope this sentencing demonstrates how seriously Thames Valley Police takes careless driving and drink-driving.
“Wilkins should not have driven his car after consuming alcohol that the level in his blood was one and a half times the legal limit.
“I hope this serves as a message to other road users that it is totally unacceptable to get behind a wheel after consuming alcohol."