You can't upgrade the AMD E-450 processor itself. It's soldered onto the motherboard. Per ottenere un processore migliore, dovresti sostituire l'intera scheda madre e probabilmente anche altri componenti (come la RAM, poiché le diverse schede madri hanno diverse compatibilità della RAM). The AMD E-450 is quite old and is in a socket (usually FM1) that is no longer supported with new, significantly faster CPUs.
In short:Upgrading the *processor* is not feasible. Upgrading the *system* by replacing the motherboard and other components is the only option to get a performance boost.