I have 1155 desktop PC with Pentium G2020 ... even if I buy something like 1270v2 ... it would still be a more than a decade old system and it wouldn't impr

I have 1155 desktop PC with Pentium G2020 ... even if I buy something like 1270v2 ... it would still be a more than a decade old system and it wouldn't improve the performance much. That depends. For the small 3 node cluster of HP Microservers (Gen 8) in my home lab, they had cpus of the Pentium G2020 class. Upgrading those to the Xeon E3-1265L v2 (also 4c/8t) made a huge difference. The G2020 has 3MB of cache, whereas the E3 above has 8MB and clocks higher. Then again, the workload on these little boxes is mostly running VMs for build jobs. More cores is definitely better than less cores for that. :)