need adivce

I am a CS undergrad student(Recently admitted). I want to build a PC. I am confused which cpu should I choose . I don't play games. My budget is 580$ max. Whould I choose low processor with dedicated gpu(ddr4 build)or should I go with iGPU(ddr5 build)? If without gpu budget for processor is 30$...

Current build is. Motherboard: rog strix x370-f gaming Cpu: ryzen 7 2700x Ram: g-skill 32gb 3200mhz Gpu: gigabyte 2060 oc Psu: tx 650m Corsair Storage: 250gb ssd WD blue/ 2x WD blue 4tb hhd/ 2tb Samsung evo plus m.2 drive Case: cooler master h 500 So I’m thinking of upgrading my current build...