Discussing upgrading the CPU on your Dell OptiPlex 9020M mini PC
Discussing upgrading the CPU on your Dell OptiPlex 9020M mini PC
Typically, faster clock speeds correlate with improved performance.
The 4590T seems likely to perform better due to its larger cache and four physical cores without hyperthreading, whereas the 4570T uses hyperthreading and only two cores with four threads. The performance gap may be small and influenced more by the software being used.
You should see improved single-thread speed, but expect slightly reduced multi-thread performance because you’re switching from four physical cores to two hyperthreaded ones.