FSB:RAM Ratio - Best performance Tags: Performance RAM CPUs Overclocking Last response: October 30, 2008 10:13 AM in Overclocking Share Lefti October 28, 2008 6:44:57 PM Hi all I was curious as to which FSB:RAM ratio provides the best performance. Whilst overclocking my system I tried out a few options. CPU: Q9550 OC @3.4GHZ FSB 400 MB: Gigabyte X48T-DQ6 RAM: OCZ Platinum DDR3 I was using loose timings at this time since I wasnt totally sure i was stable. TIMINGS: 8-8-8-24 My Gigabyte MB gave me 4 divider options at the 400MHz strap. I tested each of them with 3DMark05. 1:1 Ratio 22783 3DMarks / 15769 CPU Marks 3:4 Ratio 22852 3DMarks / 17864 CPU Marks 3:5 Ratio 23218 3DMark / 18848 CPU Marks 2:1 Ratio (Much too low for the memory, wouldn't even boot) Based on this alone I am using the 3:5 ratio, I have no idea why this ratio gets a higher score, I also have no idea as to whether or not 3DMark05 is a good metric to use. What do people think on the subject? More about : fsb ram ratio performance spuddyt October 28, 2008 6:56:49 PM it makes bugger all difference - only those who are determined to get the ABSOLUTE maximum will want to bother with this (just use 1:1, makes calculations easier ) br3nd064 October 29, 2008 2:07:40 AM You won't notice any difference in real-world use. If you're really interested in having the best performance, 1:1, 3:4 and 4:5 have always worked best for me. Can't find your answer ? Ask ! Get the answer richardscott a b K Overclocking October 30, 2008 10:13:54 AM if you can run your memory at a higher speed then you get more bandwidth but for everyday use spuddyt is correct it makes no diffrence. Can't find your answer ? Ask ! Publish Related resources: ForumWhich ram:fsb ratio will see best performance ForumIs 1:1 the best ratio between FSB and RAM ? ForumThe ol' 1:1 FSB/RAM ratio 'myth' ForumRam/FSB to a 1:1 Ratio Questions ForumFSB:RAM ratio with Q6600 Forum1:1 FSB : Ram ratio . Is it necessary for Q9550? ForumBest price to performance ratio among different AMD 64 Athlon X2? ForumNeed help getting a 1:1 FSB to ram ratio ForumPerformance difference between various FSB:RAM ratio ? ForumLooking for best price/ performance ratio (OCing) ForumDRAM: FSB Ratio help ForumFSB :DRAM Ratio ForumDRAM: FSB Ratio at 12:6 ForumDram: FSB ratio = 12:6 ForumFSB :DRAM ratio help ForumDRAM: FSB Ratio ? ForumDRAM: FSB ratio question ForumFSB to DRAM frequency ratio really important? ForumFixed Voltage ForumOC assuring ratio 1:1 on Asus P5Q Pro More resources Read discussions in other Overclocking categories CPUs Motherboards Memory Chipsets Heatsinks Water Cooling Intel AMD !