In short, we have a clear winner — Acer Predator Helios 300 PH315-54-760S outperforms the more expensive MSI Katana GF76 17.3" 144Hz FHD on the selected game parameters, and is also a better bang for your buck! The better performing Acer Predator Helios 300 PH315-54-760S is 436 days older than the more expensive MSI Katana GF76 17.3" 144Hz FHD.