The temperature of both cores differs by 2-3 degrees. Normal or not?

Question

Iron

Yesterday I changed the thermal paste on the HP Pavilion dv6 laptop, before that it was terribly warm + there were problems with the cooler, I lubricated it and now the temperature is normal - 40-50 degrees when idle (from the moment of purchase it was normal for it). Proc - dual-core Intel i5 Sandy Bridge with "virtualization in 4 cores". I measure the temperature with SpeedFan. After the replacement, I revealed such garbage: on the second core, the temperature is 2-3 degrees higher than on the first one, although in general it is normal on both cores. I'm guessing I just applied the thermal paste unevenly. How harmful/dangerous is this to the processor?

Answer 1

Hammer, less than 80 and good.