I may be wrong on this (and I don't have the Dell website at hand), but isn't the E5-1620 the single CPU version model, while the 2620 is the dual CPU version? I know the T5810 is pretty much the T3610 but offers dual CPU capability. However if they give you the 1620 (which makes sense for Dell, if you only order 1 CPU to…
Thanks for these advices! Aside the consumer-level solution, I had a look at HP and Dell. HP z840 seem quite expensive compared to Dell Precisions. But there's no HP online configurator so I'm not sure. I made a Dell Precision t5810 configuration (without display) that might suit my needs: Intel® Xeon® E5-1620 v3 (4C, 3,5…