Sunday, June 02, 2013

CPU speed vs efficiency


I have been tasked with finding a lower power consuming solution while preserving performance.

The chart below is sorted by Total CPU performance but there are also other factors such as can your application use 4 CPU's or will it just be limited to one or two while the rest go unused.

We are currently using an i5-650 that is 73 watts for 2 core at 3.2 GHz.  I quick look shows the i3-3225  at 55 watts for what is a slight performance gain of 2 cores at 3.3 Ghz.


I found it interesting that there was such a strong relationship between lower CPU speeds and more efficient operation. I can't help but feel this is more then physics at work but more organizational mandates and a side effect of the way their requirements are put together.






This is across all Intel CPU's after 2006 or so up to the current ones shipped. 
Speed is (GHz * Cores) / 21 , the fasted being the i7-3970X 6 cores at 3.5 GHz. 

CPU ModelClock GHz# of CoresTPD WattsSpeed (Clock*Cores)Efficiency (Ghz / Watt)
i7-3970X3.56150210.14
i7-990X3.47613020.820.16
i7-9803.33613019.980.154
i7-980X3.33613019.980.154
i7-3960X3.3613019.80.152
i7-9703.2613019.20.148
i7-3930K3.2613019.20.148
i7-38203.6413014.40.111
i7-2700K3.5495140.147
i7-3770K3.5477140.182
i5-2550K3.449513.60.143
i7-26003.449513.60.143
i7-2600K3.449513.60.143
i5-35703.447713.60.177
i5-3570K3.447713.60.177
i7-37703.447713.60.177
i7-9753.33413013.320.102
i5-25003.349513.20.139
i5-2500K3.349513.20.139
i5-35503.347713.20.171
i7-9603.2413012.80.098
i7-9653.2413012.80.098
i5-2450P3.249512.80.135
i5-34703.247712.80.166
i5-2380P3.149512.40.131
i5-24003.149512.40.131
i5-34503.147712.40.161
i5-3350P3.146912.40.18
i5-3570S3.146512.40.191
i7-3770S3.146512.40.191
i7-9503.07413012.280.094
i7-8803.0749512.280.129
i5-23203495120.126
i5-33303477120.156
i5-3550S3465120.185
i7-3940XM3455120.218
i7-9402.93413011.720.09
i7-8702.9349511.720.123
i7-875K2.9349511.720.123
i5-23102.949511.60.122
i5-3470S2.946511.60.178
i5-3475S2.946511.60.178
i7-3920XM2.945511.60.211
i7-9302.8413011.20.086
i5-7602.849511.20.118
i5-23002.849511.20.118
i7-8602.849511.20.118
i5-3450S2.846511.20.172
i7-2600S2.846511.20.172
i7-3840QM2.844511.20.249
i5-2500S2.746510.80.166
i5-3330S2.746510.80.166
i5-3335S2.746510.80.166
i7-2960XM2.745510.80.196
i7-3740QM2.744510.80.24
i7-3820QM2.744510.80.24
i7-9202.67413010.680.082
i5-7502.6749510.680.112
i7-870S2.6748210.680.13
i7-3720QM2.644510.40.231
i7-860S2.5348210.120.123
i5-2400S2.5465100.154
i5-2405S2.5465100.154
i7-2920XM2.5455100.182
i7-3770T2.5445100.222
i7-2860QM2.5445100.222
i5-750s2.44829.60.117
i7-2760QM2.44459.60.213
i7-3630QM2.44459.60.213
i7-3635QM2.44459.60.213
i5-2500T2.34459.20.204
i5-3570T2.34459.20.204
i7-2820QM2.34459.20.204
i7-3610QM2.34459.20.204
i7-3615QM2.34459.20.204
i7-3610QE2.34459.20.204
i7-3615QE2.34459.20.204
i7-2670QM2.24458.80.196
i7-2675QM2.24458.80.196
i7-2720QM2.24458.80.196
i7-3632QM2.24358.80.251
i7-940XM2.134558.520.155
i7-2710QE2.14458.40.187
i7-2715QE2.14458.40.187
i7-3612QM2.14358.40.24
i7-3612QE2.14358.40.24
i7-920XM245580.145
i7-2630QM244580.178
i7-2635QM244580.178
i7-840QM1.874457.480.166
i5-6803.62737.20.099
i5-6703.472736.940.095
i7-740QM1.734456.920.154
i7-820QM1.734456.920.154
i3-21303.42656.80.105
i3-32403.42556.80.124
i5-6613.332876.660.077
i5-6603.332736.660.091
i3-5603.332736.660.091
i3-21203.32656.60.102
i3-21253.32656.60.102
i3-32203.32556.60.12
i3-32253.32556.60.12
i5-6503.22736.40.088
i5-6553.22736.40.088
i3-5503.22736.40.088
i3-32103.22556.40.116
i7-720QM1.64456.40.142
i3-21003.12656.20.095
i3-21023.12656.20.095
i3-21053.12656.20.095
i3-5403.072736.140.084
i7-3540M323560.171
i3-5302.932735.860.08
i5-3470T2.92355.80.166
i5-3380M2.92355.80.166
i3-3240T2.92355.80.166
i7-3520M2.92355.80.166
i5-3360M2.82355.60.16
i3-3220T2.82355.60.16
i7-640M2.82355.60.16
i7-2640M2.82355.60.16
i5-2390T2.72355.40.154
i5-3340M2.72355.40.154
i5-3610ME2.72355.40.154
i7-2620M2.72355.40.154
i5-480M2.672355.340.153
i5-560M2.672355.340.153
i5-580M2.672355.340.153
i3-390M2.672355.340.153
i7-620M2.672355.340.153
i5-2540M2.62355.20.149
i5-3230M2.62355.20.149
i5-3320M2.62355.20.149
i3-2120T2.62355.20.149
i3-3130M2.62355.20.149
i5-460M2.532355.060.145
i5-540M2.532355.060.145
i3-380M2.532355.060.145
i7-610E2.532355.060.145
i5-2450M2.523550.143
i5-2520M2.523550.143
i5-2510E2.523550.143
i5-2515E2.523550.143
i5-3210M2.523550.143
i3-2100T2.523550.143
i3-3120M2.523550.143
i7-3555LE2.522550.2
i5-450M2.42354.80.137
i5-520M2.42354.80.137
i5-520E2.42354.80.137
i5-2430M2.42354.80.137
i5-2435M2.42354.80.137
i3-370M2.42354.80.137
i3-2370M2.42354.80.137
i3-3110M2.42354.80.137
i3-2120ME2.42354.80.137
i5-2410M2.32354.60.131
i5-2415M2.32354.60.131
i3-2348M2.32354.60.131
i3-2350M2.32354.60.131
i7-2649M2.32254.60.184
i5-430M2.272354.540.13
i3-350M2.272354.540.13
i7-660LM2.272254.540.182
A D27502.262104.520.452
i3-2328M2.22354.40.126
i3-2330M2.22354.40.126
i3-2332M2.22354.40.126
i3-2330E2.22354.40.126
i7-2644LE2.22254.40.176
i3-330M2.132354.260.122
i3-330E2.132354.260.122
i7-640LM2.132254.260.17
A D27002.132104.260.426
i3-2308M2.12354.20.12
i3-2310M2.12354.20.12
i3-2312M2.12354.20.12
i3-2310E2.12354.20.12
i7-2629M2.12254.20.168
i7-3687U2.12174.20.247
i7-620LM222540.16
i7-620LE222540.16
i7-3537U221740.235
i7-3667U221740.235
A D2560221040.4
A S1260228.540.471
A N2850226.640.606
P4 HT6703.811153.80.033
i5-3437U1.92173.80.224
i3-3227U1.92173.80.224
i7-3517U1.92173.80.224
A N28001.8726.53.740.575
A D25001.862103.720.372
A D25501.862103.720.372
A D5251.832133.660.282
i5-3337U1.82173.60.212
i5-3427U1.82173.60.212
i3-3217U1.82173.60.212
i7-2677M1.82173.60.212
i5-2557M1.72173.40.2
i5-3317U1.72173.40.2
i7-2637M1.72173.40.2
i7-3517UE1.72173.40.2
A N26501.723.63.40.944
A D5101.672133.340.257
A N6701.6728.53.340.393
i5-2467M1.62173.20.188
i3-3217UE1.62173.20.188
i7-2657M1.62173.20.188
A S12201.628.13.20.395
A 3301.6283.20.4
A S12401.626.13.20.525
A N26001.623.53.20.914
i3-2375M1.521730.176
i3-2377M1.521730.176
i7-2617M1.521730.176
i7-2610UE1.521730.176
i5-3339Y1.521330.231
i5-3439Y1.521330.231
i7-3689Y1.521330.231
A N5501.528.530.353
i7-680UM1.472182.940.163
i5-2537M1.42172.80.165
i3-2365M1.42172.80.165
i3-2367M1.42172.80.165
i3-3229Y1.42132.80.215
i5-470UM1.332182.660.148
i5-560UM1.332182.660.148
i3-380UM1.332182.660.148
i7-660UM1.332182.660.148
i7-660UE1.332182.660.148
P4M2.61352.60.074
i3-2357M1.32172.60.153
i3-2340UE1.32172.60.153
i5-430UM1.22182.40.133
i5-540UM1.22182.40.133
i3-330UM1.22182.40.133
i7-640UM1.22182.40.133
i5-520UM1.072182.140.119
i7-620UM1.072182.140.119
i7-620UE1.072182.140.119
A Z5602.1312.52.130.852
A Z550212.420.833
A Z6251.912.21.90.864
A Z5401.8712.41.870.779
A D4251.831101.830.183
A N4701.8316.51.830.282
A N4751.8316.51.830.282
A D4101.671101.670.167
A N4551.6716.51.670.257
A N4501.6715.51.670.304
A N2801.6712.51.670.668
A E6801.614.51.60.356
A E680T1.614.51.60.356
A 2301.6141.60.4
A N2701.612.51.60.64
A Z530P1.612.21.60.727
A Z6151.612.21.60.727
A Z5301.6121.60.8
A Z6701.5131.50.5
A Z520PT1.4412.21.440.655
A N4351.33151.330.266
A Z5201.33121.330.665
A E6601.313.61.30.361
A E660T1.313.61.30.361
A E665C1.313.61.30.361
A E665CT1.313.61.30.361
A CE41001.2171.20.171
A CE41301.2171.20.171
A CE41501.2171.20.171
A Z6501.2131.20.4
A Z5151.211.41.20.857
A Z6001.211.31.20.923
A Z510P1.112.21.10.5
A Z510PT1.112.21.10.5
A Z5101.1121.10.55
A E640113.610.278
A E640T113.610.278
A E645C113.610.278
A E645CT113.610.278
A Z605112.210.455
A Z6120.911.30.90.692
A Z6200.911.30.90.692
A Z6100.811.30.80.615
A Z5000.810.650.81.231
A E6200.613.30.60.182
A E620T0.613.30.60.182
A E625C0.612.70.60.222
A E625CT0.612.60.60.231

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