On Thursday, Los Blancos were crowned champions of Spain for a record-extending 34th time after Benzema's brace inspired the club to a 2-1 win over Villarreal.
Real's surge to the title was largely inspired by the striker's performances this season, with the former France international leading the club's scoring chart with 21 goals for the league campaign.
The 32-year-old's tally is second only to FC Barcelona superstar Lionel Messi in the overall chart for the LaLiga season, but Perez believes no player has had a better year than the former France international.
"I have not seen any player have as good a year as him."
Browse through the gallery to see Real Madrid's top highest scorers of all-time.
10. Emilio Butragueño - 171 goals
9. Jose Martinez Sanchez (Pirri) - 172 goals
8. Francisco Gento - 182 goals
7. Hugo Sanchez - 208 goals
6. Ferenc Puskas - 242 goals
5. Karim Benzema - 257 goals
4. Santillana - 290 goals
3. Alfredo di Stefano - 308 goals
2. Raul Gonzalez - 323 goals
1. Cristiano Ronaldo - 450 goals