Anyone running A Core 2 Duo 2.2 Gig with Win 7 and X3?

Harvey,
I am running Win 7 Pro x 64 , E8400 @ 3Mhz / 6GB DDR2-800 with Sonar X3e producer x64. I also have an ATI HD6450 video card running 3 monitors. I use the Aero theme (plain jane settings) in Win 7 to push the video tasks out to the GPU.
First, Sonar X3 does take more horsepower than 8.5.3 but not that much.
I also have Sonar X3E Producer x32 installed along with x64 but I am not sure x32 makes that much difference performance wise. I have not tested this thoroughly however.
Whether your setup works for you depends largely on what you use it for. If your projects are primarily audio with some backing synths, you are probably good with that setup. Do not expect to run 25 instances of Dim Pro or a lot of linear phase plugins @ 96/24 though.
Sample rate really matters. I usually work at 48Khz/24 bits although 96/24 works well for mostly audio projects even with 20 or more tracks. In a typical project I will have 2 or 3 Dim Pro instances, Addictive Drums or Session Drummer 3, SI-bass, and maybe one or two other synths along with 4 or 5 audio tracks... without freezing tracks, my CPU meter will be about 40-50%. My buffers are 128-512 @ 48 Khz usually but I can get my interface down to 32 if I am simply recording a couple of audio tracks.
If you do heavy synth projects, you may have to freeze some synth tracks.  
THe usual DAW performance things help a lot with an underpowered system...separate HD for samples and so on.
Sounds like this is a secondary DAW system. For me it is my primary DAW so I am thinking of new one. I just got an I7 laptop running win 8.1 with an SSD that rocks and I  use that for guitar synths and TH2/guitar rig but I Ilike the 3 monitors (which the laptop will not do) so an upgrade from the E8400 will probably happen this year. 
I like to keep my old systems and rotate them to different functions. THe E8400 will replace my current Celeron file server while the Celeron goes in the dumper and so on.
My advice would be to try it. I am sure you could still get some use out of it
Hope this helps.
Michael
 

Thanks microapp, great responses with good advice, here is how I record. I do synths, and samples into Sonar using MIDI with a MIDI keyboard controller, or a composition program for the backing tracks. I immediately render each track to audio with only 2 or 3 sample players at most. I also have a synth in my computer and that is hardware so only the MIDI track is using any CPU.
 
Once the BT is done, I will then play live guitar in and vocals, either one first. I don't do videos (not yet) This will be my primary DAW, with the P4/8.5.1 producer as a secondary backup unit. Of course I will optimize the DAW and Windows for audio production, and keep my app loading down to a minimum. I have not built a new DAW since 2003 since the P4 has worked almost perfectly all that time. Once I get 7/X3 tweaked. And I like it, I can throw a new Mobo/CPU/RAM together in the Sonata 2 case to optimize performance if needed using the same hard drives.
 
Thanks for taking the time to comment.

me. on Sonar x2. it”s working...

Working for me, though I'm not really pushing it.

Harvey: Asus MoBo and an Intel Core 2 duo at 2.2 gigs......tell me the exact model of the motherboard !

StarTekh
Harvey: Asus MoBo and an Intel Core 2 duo at 2.2 gigs......tell me the exact model of the motherboard !

Asus p5b-vm se

Thanks overkiller that gives hope to a new /X3 build.