Best answer: The best place to buy a Legion C530 desktop gaming PC is straight from Lenovo. There you’ll find a healthy amount of configuration options with both NVIDIA and AMD hardware, and warranty and support are included with each purchase.
Lenovo: Legion C530 Cube ($880+)
What configurations does Lenovo offer?
Starting at about $880, you can get a Legion C530 with an 8th Gen Intel Core i5-8400 processor (CPU), 8 GB of DDR4-2666MHz RAM, a 1 TB 7,200 RPM hard-disk drive (HDD) coupled with 16 GB of Intel Optane memory, and a NVIDIA GTX 1050 Ti graphics card (GPU) with 4 GB of GDDR5 VRAM. This configuration has the power for medium gaming, though many people feel the GTX 1060 is where true gaming performance starts.
Lenovo also offers a configuration with the beefier GPU for about $1,250. Other than the GTX 1060 with 6 GB of GDDR5 VRAM, it also has inside an 8th Gen Intel Core i7-8700 CPU, 8 GB of DDR4 RAM, and a 1 TB 7,200 RPM HDD coupled with a 128 GB PCIe solid-state drive (SSD) that helps boost performance.