I have Late 2013 MBP Retina i7-4850HQ CPU @ 2.30GHz. The score I see is: 4120 14264. For the latest MBP Retina i7-7820HQ @ 2.90HZ and its score is: 4644 15802.

I have Late 2013 MBP Retina i7-4850HQ CPU @ 2.30GHz. The score I see is: 4120 14264. For the latest MBP Retina i7-7820HQ @ 2.90HZ and its score is: 4644 15802. I see just 10% gain, and I don't see any reason to upgrade unless the logic board fails on my 3.5 years old laptop.