Here is a list of (mostly failed) combinations:
bitcoin-qt 0.9.6
512MB single core 1.6GHz AMD - forget it
1024MB quad core 1GHz raspberry pi - forget it. burned out a 64GB usb stick with too many rw before it had reindexed the blockchain
2048MB duel core 1.9GHz Dell - OK
6.2GB quad core 3.1 GHz Intel - OK, except that 0.9.6 is now obselete
bitcoin-qt 0.11.0
6.2GB quad core 3.1 GHz Intel - presently reindexing the blockchain (since 25th November)
I'm not sure what you're trying to tell us here. Why would you use 0.9.6? Seems like a slightly eccentric choice for your test client. As a miner. I would have expected you to understand the relevance of the client version in a performance test.
And what does "1.9GHz Dell" and "3.1 Ghz Intel" actually tell us? Not all clock cycles are created equally
