I did some tests and have come up with the following data. Tests: 3 ships launched twice each with fraps capturing 60 seconds for the flight with no user input. Total of 12 data points taken, 6 data points per RAM setting test. RAM settings used during the 1600mhz @ 9-9-9 2400mhz @ 11-13-13 Results (FPS): RAM , Avg - , Min - , Max 1600, 31.43 , 19.83 , 45.17 2400, 32.88 , 23.33 , 49.00 Diff, 01.45 , 03.50 , 03.83 Diff, 04.61%, 17.64%, 08.49% So it looks like the result is KSP benefits more from faster RAM than Latency.