Intel Pentium G2020 Vs Intel Core I3 3220 - Intel - CPUs

I'm going to make a pc and these are the specs CPU Intel Pentium G2020 2.9GHz GPU AMD Radeon HD 7770 XFX Core 1GB Edition RAM 4GB DDR3 1333MHz or should i replace my processor with the Intel Core I3 3220 Or is the Intel Pentium G2020 good ...

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