OK I see that he got it done, can't quite understand about the thermal pads and cutting connectors, can someone elaborate?
IIRC, this should have to do with the headroom available (clocks upper limit in the design). So if you used the W5590, though there's no Turbo, it's going to operate all cores at it's limit, which is still higher than what all cores can run at on the W5580.
So the question you need to ask yourself, is your software use primarily single threaded or multi-threaded, and how do you use it?
That is, if you run single threaded apps, but run enough simultaneously to keep enough cores busy that Turbo won't kick in, or not. If it's the latter, then the W5580 would make more sense. Otherwise, no, and especially the case if you're using mostly multi-threaded apps.
Try to figure out which will give you the fastest clocks for your use, and if it's worth the added cost if it's the faster part (rated clock). Only you can determine this.
Sorry it's not easier than this.
