Which VM should I use with my HT i7 920?

[metalop1g]

7.0 of workstation (not 7.0.1) then the player will work for 8 threads.

I have an i7 920, and I chose to run the latest folding CPU version because if you run 8 threads it'll take up less than 1GB for all 8 threads combined.

The choice is either max PPD using VMplayer I mentioned above and losing 5GB of RAM for your virtual machine, or run 8 threads in Windows and lose only 1GB of RAM.

Me personally, I ran the vmplayer machine with 5GB of ram on my machne with 12GB of RAM and had no problems.

I have the latest version of Vmware workstation on my desktop. Only 4 threads support? If it's only 4 threaded it's going in the trashcan.

The 8 cpu clients, I can not do that.. Too complicated for too little benefit, plus I use the pc everyday so there is too much potential for it to go wrong. I only use 2GB of ram

Using 4GB of ram for a VM would be ok for me, since I use max 2GB while gaming or else, but dynamic ram adressing would be downright perfect!!! 5GB permanent is too much, i'd need another kit.

ESXi and vSphere can the new Hyper-V in server 2008 R2 has dynamic ram etc as well.
Free? yeah you asking for to much maybe.
i would check out VirtualBox

I have some experience with virtualbox, we tried it in on of my classes. I have acces to msdnaa stuff, so microsoft softwares are not out of reach. Is hyper-v a software or an OS?

VirtualBox will definitely work for 8 threads.

Back when VmWare player came out (3.0.0...), it had slightly higher performance than VB. That may or may not have changed, so that is your call. Just make sure to give the VM >= 4600mbs of memory.

Alright then I download VBox, because at the moment it's the most appropriate VM. I don't really like using older versions of stuff. Why 4.5 GB and not 4 or 5?