Here's a brief look at the leaked Radeon RX 3000 series specifications:
AMD Radeon RX 3060 (Navi 12): 4GB GDDR6, 75W TDP (no 6-pin), Radeon RX 580-class performance for $129.99
AMD Radeon RX 3070 (Navi 12): 8GB GDDR6, 120W TDP, Vega 56-like performance for $199.99
AMD Radeon RX 3080 (Navi 10): 8GB GDDR6, 150W TDP, "Vega 64 +15%" for $249.99
As always, take these leaks with a grain of salt.