Power efficiency

[Dirk Broer]

With both Bay Trail and AM1 as the new kings of power efficiency I have tried to re-vamp my table.

There are three problems translating the specs into real-life performance:

1. TDP is what it is, it is *NOT* a definite measurement of real-life power consumption.
2. Crunching-wise, an IGP gets you far more credit than the cores of your CPU itself.
3. Knowing how much Watt TDP per core is used still says nothing about the credits per core earned.

Knowing that I still went on producing a top-16 list of this moment's coolest CPUs (or SOCs, or APUs, whatever)

Ranking	Brand	Version	Socket	Model	Threads	TDP	Score	Introduction Price
1	Intel	Pentium J2900	embedded	Bay Trail D	4	10	2.50	$94 (mobo for free with it)
2	Intel	Pentium J2850	embedded	Bay Trail D	4	10	2.50	$94 (mobo for free with it)
3	Intel	Celeron J1900	embedded	Bay Trail D	4	10	2.50	$82 (mobo for free with it)
4	Intel	Celeron J1850	embedded	Bay Trail D	4	10	2.50	$82 (mobo for free with it)
5	Intel	i7-4765T	1150	Haswell	8	35	4.38	$303
6	AMD	Opteron 4256 EE	C32	Opteron "Valencia"	8	35	4.38	$377
7	AMD	Opteron 4365 EE	C32	Opteron "Seoul"	8	40	5.00	$377
8	Intel	Celeron J1800	embedded	Bay Trail D	2	10	5.00	$72 (mobo for free with it)
9	Intel	Celeron J1750	embedded	Bay Trail D	2	10	5.00	$72 (mobo for free with it)
10	AMD	Opteron 6366 HE	G34	Opteron "Abu Dhabi"	16	85	5.31	$575
11	AMD	Opteron 6262 HE	G34	Opteron "Interlagos"	16	85	5.31	$523
12	Intel	i7-4770T	1150	Haswell	8	45	5.63	$303
13	Intel	i7-3770T	1155	Ivy Bridge	8	45	5.63	$294
14	AMD	Athlon 5350	AM1	Kabini	4	25	6.25	$55
15	AMD	Athlon 5150	AM1	Kabini	4	25	6.25	$45
16	AMD	Sempron 3850	AM1	Kabini	4	25	6.25	$36

If anyone can point me to a table containing real-life (BOINC) power consumption per cpu and/or Mips/GFlops per cpu (as given in the BOINC Manager for the above models, plus the IGP power for those CPUs that have them), I'd be most grateful...