Just FYI - I've been able to use blender in basic scenes (although one of them had hair) on an old dell celeron laptop with Intel GMA graphics. You could tell 3D view wasn't going at 60FPS, but it was completely useable seeing as you don't need the same responses as in a real time game. The only actual restriction is going to be how the CPU fairs when you're actually rendering things, but that's all CPU-side, not GPU-side until you get an nVidia chip which is faster than the CPU in Cycles.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
CPU: AMD Ryzen 5900X
RAM: 16GB
GPU: Radeon Vega 56
