i cant really afford an new psu and gpu atmIf $28 is 10% additional cost or less then it is worth it as the 5700 is about 10% faster than the 2060. A 550W PSU should be OK, but that is a low quality PSU so I wouldn't want it running any mid grade or higher GPU.
so you saying i should go for the 5700 and the cx650 ?The issue for you isn't the wattage of the PSU. The problem is the Corsair VS series is a low end PSU that I would never buy. Will it work with both the AMD and nVidia GPU, yes. You just won't have some of the protections that you would want for those GPUs. In the short term you can run it on for either GPU, but you will want to get a good quality PSU in the future. The CX is a good budget PSU.