Isis Proteus Model Library Gy 521 Mpu6050 Upd _best_ Link
Introduction to MPU6050 and GY-521
Practical Tip:
If you are looking for this today, you no longer need the risky "UPD" files from random file-hosting sites. If you update your Proteus to a recent version (SP0 to SP3 updates), simply search the library for "MPU6050" . Connect SDA and SCL to your Arduino (remembering to add pull-up resistors if they aren't in the model properties), and the story ends with your project working perfectly.
