Miner type: NBminer 41.0 nvidia driver 512.59
GPU: inno3D RTX 3060 Twin X2 OC LHR:
cclock: @1552 // mclock: +1300
Hashrate: 49.00 +- 0.5 // Eff: 429.9 k
cclock @1552 // mclock: +1500
Hashrate: 50.10 +- 0.5 // Eff: 428.2 k
I have the MSI Ventus 3x RTX 3060 12GB model. The highest stable memory clock is +2200 MHz on Linux (+1100 Windows). I use MinerstatOS with T-Rex. The memory clock is why I'm limited to 46 Mh. One or two of them can probably get the same hashrate as you, but I need to make sure the entire rig is stable.
You are right, some people got the same hashrate from MSI Ventus 3060 models, the extra 4 MH is nothing unless you have up to 10 different MSI Ventus models, at this 46MH its not so bad at all.