Quick comparison
Both appeared in 1955. Both have an inline-six engine, mounted at the front. The more powerful one is the Ferrari 735 LM: 330 PS versus 280 PS.

Both appeared in 1955. Both have an inline-six engine, mounted at the front. The more powerful one is the Ferrari 735 LM: 330 PS versus 280 PS.
All values come from the data sheets of the two models (sources listed there). The better value is highlighted in green wherever both data sheets give a comparable figure. Photos – Ferrari 735 LM: Prova MO, CC BY-SA 4.0. Licenses and originals: Sources & image credits.