Hello there! I've done a little review research on the laptop you mentioned (HP Envy 15 - K201) and I found two reviews of hp envy 15 with slightly different configurations:
HP Envy 15 - K010
HP Envy 15 - K230
it appears that the one you're interested in is closer in terms of specs to the K230. basically if you're using it for casual gaming it's fine. but for more intensive gaming session, you're better off with something more high-end.
if specs and gaming are your main concern, I would not recommend a hp envy laptop for gaming. my past experience with an older envy 16 (the one with first-gen i7) reminds me of the downclocked graphics and puny heatsink that result in poor graphic performance whenever the laptop heats up. not to mention the higher price tags just for the "envy" branding.
Judging from the benchmark values listed in the reviews above, it seems that the downclocking routine is still present in modern envy laptops: