Apparently it should be doing around 13-14MH/s at 28-30W ethash (ETC). I dont think it looks so bad the efficiency is very simillar to 6600 XT. Obvioously its not a beast but I can see it used as cheap, very lowpower second gpu in a gaming pc for example. Ofcourse only worth if price <= 200, which can be done atm
Maybe efficiency in gaming you mean? 6600XT performance in mining is way better than 6500 30MH isn't a joke and power consumption of 6600 deserves this exact hashrate, buying 6500 for mining is like buying 1050 for mining in 2022