2x Xeon E5-2670 vs 4x Xeon E5645

[Living Legend]

I've been pretty set on going with the dual E5-2670 route, and checking my options to see if I could find anything that made more sense than the Natex deal.  My uses will be the following:

 

Media storage

1-2 simultaneous Plex transcodes

15+ dockers, mostly media related like couch potato, sonarr, nzbget, MythTV, etc.

2-3 VMs.  Mostly used as workstations.  No heavy gaming or video editing.  Mostly word processing, web browsing, media viewing.

 

I've recently found on Natex.us, for about $200 less than the E5-2670, 1U Rack, 128GB RAM system, there is a Supermicro, 2 node, 4x Xeon E5645 CPU which is in a 2U rack and has 96GB RAM.  Here are the two links:

 

4x Xeon E5645

http://natex.us/supermicro-cse-827hd-r1400b-2-x-x8dtt-hf-nodes/

 

2x Xeon E4-2670

http://natex.us/1u-chenbro-rm13704-server-intel-s2600cp2j-dual-xeon-e5-2670-sr0kx-128gb-16x8gb-ecc-pc3-12800r-ram-intel-x520-da1/

 

Outside of the 32GB RAM drop. what other major differences/issues will I encounter going the dual node route of the supermicro system over the dual 2670 system?  I see that the nodes only have the single 2.0 16x PCI slot, so I get less PCI slots.  I'm also getting a bonus 10 gigabit network adapater with the E5-2670 system.  However, besides this, under my specific uses, if these are my two choices should I go with the quad Xeon E5645 system because of the cheaper price and greater # of cores?

 

Maybe I'm missing some other obvious pitfalls of that potential setup.  I'd be interested in hearing what you guys thought.

[TBSCamCity]

The 4x E5645 is actually just two computers in one case. The E5645 cpus are are dual socket capable, and that case has two motherboards in it. So it isn't a quad cpu system, but instead two seperate dual cpu systems. With that being said the E5-2670 cpus are far more powerful than the E5645. I just moved up from dual X5670s to dual E5-2670s and it has been a great improvement. The X5670 is the same generation as the E5645 but a little more powerful. Hope that helps.