I have a PC dedicated to FSX only on Win7 64Bit. My motherboard is X58A-UD3R, i7 950 CPU and my current ram is Corsair 1600MHz 7-8-7 (3x2GB) DDR3 triple chanel. I am also using a 30" monitor (2560 x 1600 pixels) 1. Will 12MB make a diffrence in FSX (with Orbx scenery and REX) ?2. If so, should I just double my current 1600MHz ram?3. Or, should I step up to 2000Mhz? I am considering the Corsair Dominator 2000Mhz 9-10-9 (3x4GB) or two of the Corsair Dominator 2000Mhz 8-9-8 (3x2GB) kits. As the latter choice is more costly, will the lower latency make any diffrence (to the human eye)? Any advice is greatly appreciated!

I don't think any of it will make any difference at all, honestly - certainly not to the human eye. I believe the lower latency of your 1600MHz is actually better on a 1366 system anyway.

it will have no effect at all on FSX.

oops, of course I am asking about 12 GB (not 12 MB)!I have heard that 12 GB may help with scenery and complex aircraft. Is this not true?

Here is a better set at 1600MHz with a lower latency http://www.newegg.com/Product/Product.aspx?Item=N82E16820231352 If you need 12GB here is a good set also at 1600MHz (3 stick = less stress on a systeme) http://www.newegg.com/Product/Product.aspx?Item=N82E16820226185 Now, I don't know how high your overclock on your CPU is but if you want to go with the 2000MHz route you need a high overclock to take full advantage of 2000MHz, they will work without problems with a CPU at stock speed but IMHO it will be a shame to use 2000MHz without a CPU @ 4.2GHz +, here is a review on the I7 950 http://www.legitreviews.com/article/1484/1/ Always look for the lower latency for the speed of the rams you will choose.

My i7 950 is currently overclocked to 3.8GHz however I should be able to push it to 4.0GHz.Thankyou for the replies however I am now more confused! The initial responses advise that an upgrade will not make a difference in FSX - however alainneedle1 suggests 2000Mhz ram if I overclock AND lower latency ram.

If your memory is hindering your CPU overclock then by all means upgrade it. I'm not familiar with OC'ing 1366 chips, so I'm probably not the best source of advice on the subject.

FSX is 32 bit , it cannot, use more then 4 gig of ram, even if it wanted too, its limited by its 32 bitness. 6 gig for intel is quiet enough and 8 for amd,

4gb is pretty good.

My i7 950 is currently overclocked to 3.8GHz however I should be able to push it to 4.0GHz. Thankyou for the replies however I am now more confused! The initial responses advise that an upgrade will not make a difference in FSX - however alainneedle1 suggests 2000Mhz ram if I overclock AND lower latency ram.

My statement is about a 1366 system. You will be fine with 1600MHz 6GB, when I said "if you need 12GB" was for other applications not for FSX, I should have been more precised in my statement. To make the relation between CPU and Ram easy to understand look at it this way, Good V8 motor (your CPU as of now) with a drag racing transmission (2000MHz rams) will work together without problems but to take full advantage of the drag racing transmission you'll need a drag racing motor (CPU at 4.2GHz +). As of now a regular transmission (1600MHz rams) will work good with your V8 (CPU at 3.8GHz). Again, what ever MHz you'll choose look for the lower latency. Hope this help.

I'd like to clear something up, if I may. ANYONE who thinks that going from 1600 to 2000 will make a SIGNIFICANT difference in FSX is incorrect. Note that I said significant. In the world of overclocking, people are trying to squeeze the absolute most out of their system. SO they optimize their disk drives, they clock their memory, they clock their gpu and cpu. The only one that makes a significant difference in FSX is clocking the CPU. As NickN has said, getting quality parts makes a difference. Your *total* experience will be better but my point is - if you are going to spend the $$ to add memory and say jump from 1600 CAS6 to 2000 CAS 7 - don't expect a MAJOR jump in performance. The sim might be smoother, with less stutters but I doubt you'll get an increase in frames. Vic

I'd like to clear something up, if I may. ANYONE who thinks that going from 1600 to 2000 will make a SIGNIFICANT difference in FSX is incorrect. Note that I said significant. In the world of overclocking, people are trying to squeeze the absolute most out of their system. SO they optimize their disk drives, they clock their memory, they clock their gpu and cpu. The only one that makes a significant difference in FSX is clocking the CPU. As NickN has said, getting quality parts makes a difference. Your *total* experience will be better but my point is - if you are going to spend the $$ to add memory and say jump from 1600 CAS6 to 2000 CAS 7 - don't expect a MAJOR jump in performance. The sim might be smoother, with less stutters but I doubt you'll get an increase in frames. Vic

Isn't that point? Less stutters and graeter smoothness????

Isn't that point? Less stutters and graeter smoothness????

Obviously you have your priorities straight, If that's your expectation, you are right on. I was speaking generally - most of the posts I see regarding adding ram are looking for a BIG frame increase. Vic

Isn't that point? Less stutters and graeter smoothness????

Yes I have a 1366 system. I am hearing that 6GB is enough for FSX. But if I manage to overclock my i7 950 to 4.0GHz, perhaps I should replace my 1600C7 and go with the 2000Mhz ram with the lowest latency. Stuttering drives me crazy, so this is my main goal! Corsair is genrally regarded as the best RAM, so why do they only have (2x3GB) 2000C8 8-9-8 ram, while some other brands do 2000C7 with lower latency? Is it that the Corsair ram can cope with timings that are changed in the bios?

6GB with lowest latency and highest speeds is what you want.