FX 4130 & Radeon HD7770, the AMD Gpu's still have more optimization to give more performance and the FX 4130 should leave you better off unless you plan to upgrade to an i5 or something similar in the future.
Plus AMD will still be using the AM3+ Socket for at least 1 more CPU iteration meaning if your Motherboard supports a high enough TDP then youll probably be able to flas the Bios and install said new CPU.
I am sort of a noob at this but what do you mean flas the "flash the Bios and install said new CPU"? When i install a cpu i need to flash it? What is flashing a bios?