CPU says that it's clocked at 4.49 GHZ

[ghostpizza]

Hello, I just recently overclocked my AMD 8120 to 4.5 ghz @ 1.45 volts; which turned out to be pretty stable. However, I look in my windows experience index tab and I see that my 4.5ghz overclocked cpu was clocked at 4.49 ghz. I double checked to see whether or not that was a program mistake by also checking the core speed in CPU-Z and in NZXT Cam. They all showed up as my 4.5ghz cpu being clocked at 4.49 ghz. Even if this may not be a big deal, I am wondering whether or not this is normal for the core speed to show up as 4.49 rather than 4.5 ghz.

PC SPECS/OC SPECS:
AMD 8120 @ 4.5ghz (4.49) @ 1.45 volts
Multiplier: 22.5x
Asrock 970 Extreme 3
12gb ram (4x2gb,2x2gb same clocking/timing)
Corsair CM750 watt psu

 

[notherdude]

The difference is infinitesimal, perhaps a rounding discrepancy