>>performance in FSX of a 1.8GHz 2.2GHz Core2 Intel system>even>>if you are clocked to 3GHz on that 4000+>>>>You mean even an Core 2 Duo clocked at 1.8 GHz would be faster>than an AMD 64 4000+ clocked at 3 GHz?>That is correct!becasue the internal design will allow more use per clock.. Whats holding you back is the chipset and the CPU internalsYou will see a defined difference becasue you are not use to seeing your system run at 3GHz but if you were to have a 1.8-2.2GHz core2 system not clocked in front of you, then you would understand the name of the game is not GHz, its the internal design of how that GHz is put to workWhich is why my i7 965 at 4GHz is running numbers only a Quad at 5GH+ could do, even with i7 at 1000MHz lessRegarless of what you may read in this thread with i7 the primary reason is becasue Intel managed to do what AMD did not when they moved the NB to the processor... Intel makes full use of the memory bandwidth and can feed/execute at a much closer speed to the proc and they increased the efficiency of cycles per clock at the same time.The internals of the Core2 does the same thing over a AMD procesor but it still sufferes in the memory area. i7 is the next step in Intels design to accomplish what AMD failed to do years ago

>>performance in FSX of a 1.8GHz 2.2GHz Core2 Intel system>even>>if you are clocked to 3GHz on that 4000+>>>>You mean even an Core 2 Duo clocked at 1.8 GHz would be faster>than an AMD 64 4000+ clocked at 3 GHz?>Yes, that is what he is saying. And yes, that is true in my experience also. The fastest San Diego I ever saw, a watercooled FX57 at over 3 ghz, could not run with the first generation Core2's, clocked at 2.0 to 2.2 ghz range, in FSX or anything else. This was when the Core2's first came out. I was astounded at the speed per clock that Intel achieved.ghz does not equal ghz...if you are comparing various families of cpu's.RhettFS box: E8500 (@ 3.80 ghz), AC Freezer 7 Pro, ASUS P5E3 Premium, BFG 8800GTX 756 (nVidia 169 WHQL), 4gb DDR3 1600 Patriot Cas7 7-7-7-20 (2T), PC Power 750, WD 150gb 10000rpm Raptor, Seagate 500gb, Silverstone TJ09 case, Vista Ultimate 64ASX Client: AMD 3700+ (@ 2.6 ghz), 7800GT

>It's likely you are running the CPU as fast as it will go atAnd it seems to have turned out that this is indeed the case. All my attempts to set FSB above 220 Mhz makes my system unstable no matter what other adjustments i try.