[操作疑難] 想請教一下Lan Card嘅分別

請問Onboard Lan(RTL8111E)同一張獨立嘅Intel Server Lan Card有咩分別同好處呢?我部寵物機長開7x24嚟PT同埋放video file比屋企其他三部機,同埋Intel Lan又點分grade呢?因為唔知D chipset點分,請指教