Benzema had been criticised for describing himself as Formula 1 and Giroud as karting, despite the fact the Chelsea forward won the World Cup with France and he didn't.
"Some people only took away things about Giroud and Formula 1 [from the live broadcast], but they didn't remark what I said about what he'd brought to the French national team," Benzema said in another video.
"They only focused on that, on what I said about Formula 1 and karting, but it's what I think and it's the truth.
"Look, if I was asked about R9 (Ronaldo Nazario), then he would be the Formula 1 and I would be the kart. Short and simple."