Here are places where Jesus preached the same Gospel as He taught Paul to preach:
Matthew 16:21
New King James Version
Jesus Predicts His Death and Resurrection
21 From that time Jesus began to show to His disciples that He must go to Jerusalem, and suffer many things from the elders and chief priests and scribes, and be killed, and be raised the third day.
Matthew 17:22-23
New King James Version
Jesus Again Predicts His Death and Resurrection
22 Now while they were [
a]staying in Galilee, Jesus said to them, “The Son of Man is about to be betrayed into the hands of men, 23 and they will kill Him, and the third day He will be raised up.” And they were exceedingly sorrowful.
Mark 8:31
New King James Version
Jesus Predicts His Death and Resurrection
31 And He began to teach them that the Son of Man must suffer many things, and be rejected by the elders and chief priests and scribes, and be killed, and after three days rise again.
John 2:18-22
New King James Version
18 So the Jews answered and said to Him, “What sign do You show to us, since You do these things?”
19 Jesus answered and said to them, “Destroy this temple, and in three days I will raise it up.”
20 Then the Jews said, “It has taken forty-six years to build this temple, and will You raise it up in three days?”
21 But He was speaking of the temple of His body. 22 Therefore, when He had risen from the dead, His disciples remembered that He had said this [
a]to them; and they believed the Scripture and the word which Jesus had said.
If this is the Gospel unto Salvation you are talking about that both Jesus and Paul preached, than the answer is no. They didn't preach a different Gospel.