Picking a GPU should involve the following approaches: if you plan on playing at 1080p resolution, get GPU in the 60s tier, for 1440p resolution, 70s tier, and for 4K, go for 80s and above tier GPUs. The amount of VRAM present should also be observed with 8GB being the minimum for 1080p, but 10 to 12GB preferred for newer games. Do not forget to look for benchmarks, make sure to evaluate the performance to best price ratio of the card; time points where higher chipsets in newer generations do not imply that those cards are the most cost-effective ones too.