Power Consumption Tests
I don’t think we should expect Core Duo to surprise us here. Since this CPU was initially designed for mobile platforms, it boasts much lower heat dissipation and power consumption than any of the desktop processors. So, even before we announce the actual benchmark results, we can be sure that our today’s main hero – Intel Core Duo T2600 – will prove much more economical than Intel Pentium D 960 or Athlon 64 X2 4800+. However, if you still need to know the exact numbers, take a look at the charts below.
As always, we used a special S&M utility to measure the maximum power consumption (you can download this utility here). We measured the current that goes through the CPU power circuitry. So, the numbers given below do not take into account the efficiency of the CPU voltage regulator laid out on the mainboard.
Intel Core Duo T2600 mobile processor consumes only 24W under 100% load, which is a simply amazing result. While the performance of this CPU is quite comparable to that of Pentium D 960 and Athlon 64 4800+, it consumes 4-5 times less power. So, dual-core mobile processors will be a great choice for a quiet and economical system.
Besides the power consumption tests performance under full workload, we have also tested our platforms in idle mode. The numbers given below were obtained without any power-saving technologies, such as Cool’n’Quiet or SpeedStep enabled.
The situation hasn’t changed. Core Duo is a highly economical processor, no doubt. By the way, when we enabled Enhanced Intel SpeedStep on Core Duo, the power consumption in idle mode dropped down to 2W.
So, if we analyze the results of our testing participants from the “performance per watt” prospective, then the absolute leadership of our hero will definitely be indisputable. This is one of the primary reasons why Core Duo processors found their way into Intel Viiv platforms.