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Intel Core i3-2100 Power Consumption

Power Consumption

For all of the performance tests, we disable all power-saving technology in order to give us a consistent set of results, and to give us best-case performance numbers - even though technologies such as Intel's SpeedStep might only take microseconds to kick in, that can make a difference in some tests.

However, for the power consumption tests we re-enable everything in order to get a real-world power draw. The power draw is measured via a power meter at the wall, so the numbers below represent the total system power draw from the mains, not the power consumption of a CPU itself. Measuring the power draw of any individual component in a PC is tricky to impossible to achieve.

Idle Power Consumption

For this test, we leave the PC doing nothing but displaying the Windows 7 desktop (with Aero enabled) for a few minutes and record the wattage drawn from the wall via a power meter.

Power Consumption (Idle)

Peak system power draw from the wall, Windows 7 Desktop, with Aero enabled)

  • Intel Core i5-2400 (3.1GHz)
  • Intel Core i5-2500K (3.3GHz)
  • Intel Core i7-2600K (3.4GHz)
  • Intel Core i5-2400 (up to 3.99GHz)
  • Intel Core i3-2100 (3.1GHz)
  • Intel Core i5-2500K (4.9GHz)
  • Intel Core i7-2600K (4.85GHz)
  • Intel Core i5-760 (2.8GHz)
  • AMD Phenom II X6 1100T Black Edition (3.3GHz)
  • Intel Core i7-990X Extreme Edition (3.46GHz)
  • Intel Core i7-950 (3.06GHz)
  • AMD Phenom II X4 980 Black Edition (3.7GHz)
  • Intel Core i5-760 (4.1GHz)
  • Intel Core i7-980X Extreme Edition (3.33GHz)
  • AMD Phenom II X6 1100T Black Edition (4.2GHz)
  • Intel Core i7-990X Extreme Edition (4.6GHz)
  • AMD Phenom II X4 980 Black Edition (4.3GHz)
  • Intel Core i7-950 (4.3GHz)
  • Intel Core i7-980X Extreme Edition (4.4GHz)
  • 75
  • 76
  • 77
  • 77
  • 78
  • 80
  • 81
  • 93
  • 108
  • 109
  • 117
  • 119
  • 124
  • 140
  • 146
  • 157
  • 167
  • 174
  • 177
0
50
100
150
200
Watts, lower is better

Power Consumption (Load)

Peak system power draw from the wall, Prime95 smallfft test

  • Intel Core i3-2100 (3.1GHz)
  • Intel Core i5-2400 (3.1GHz)
  • Intel Core i5-760 (2.8GHz)
  • Intel Core i5-2500K (3.3GHz)
  • Intel Core i5-2400 (up to 3.99GHz)
  • Intel Core i7-2600K (3.4GHz)
  • AMD Phenom II X4 980 Black Edition (3.7GHz)
  • Intel Core i5-760 (4.1GHz)
  • AMD Phenom II X6 1100T Black Edition (3.3GHz)
  • Intel Core i5-2500K (4.9GHz)
  • Intel Core i7-990X Extreme Edition (3.46GHz)
  • Intel Core i7-950 (3.06GHz)
  • Intel Core i7-2600K (4.85GHz)
  • Intel Core i7-980X Extreme Edition (3.33GHz)
  • AMD Phenom II X4 980 Black Edition (4.3GHz)
  • Intel Core i7-990X Extreme Edition (4.6GHz)
  • Intel Core i7-980X Extreme Edition (4.4GHz)
  • AMD Phenom II X6 1100T Black Edition (4.2GHz)
  • Intel Core i7-950 (4.3GHz)
  • 115
  • 142
  • 146
  • 148
  • 154
  • 156
  • 195
  • 198
  • 207
  • 221
  • 231
  • 233
  • 234
  • 256
  • 331
  • 356
  • 368
  • 369
  • 383
0
100
200
300
400
Watts, lower is better

Note: the Intel LGA1156 CPUs were tested in a micro-ATX board. This difference can account for up to 20W, as we found in our Energy Efficient Hardware feature.

Read our Performance Analysis.