OK, couldn't sleep last night so I ran my own Ableton with spire bench mark.
Quick results are..
Usable instances
4770k 27
i7-950 8
4770k better-ness 3.4
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cpu use (task manager process) divided by instance
Instances 1 2 3 4 5 6 7 8
4770K 4.0 2.5 2.7 2.8 2.6 2.8 3.0 3.0
i7-950 8.0 6.5 7.0 6.8 7.4 7.7 7.4 8.0
better-ness 2.0 2.6 2.6 2.5 2.8 2.7 2.5 2.7
Test detalis: Spire patch BA Octava, (two oscilators 9 voices unison). Ableton Live 9.1
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