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TESTING SETUP
The test system was comprised of the following components on an open bench top.
Details about the Core Duo T2600 are provided below.
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Intel Core Duo T2600 Specifications
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Frequency
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2.16GHz |
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Packaging
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478 pin PPGA |
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Vcore
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1.25V - 1.4V |
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Bus frequency
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667MHz |
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Typical heat dissipation
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31W |
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Core stepping
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C0 |
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Maximum case temperature
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100°C |
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L2 cache size
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2MB |
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Production process
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65nm |
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Hyper- Threading ( HT)
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No |
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X86-64bit support
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No |
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Enhanced Intel SpeedStep (EIST)
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Yes |
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Intel Virtualization Technology (VT)
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Yes |
| Current Street Price |
US$440~500 |
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478/479 Socket Confusion
The Pentium M has 478 pins, as do some versions of the Pentium IV. However,
the Pentium M is not pin-compatible with the Pentium IV 478 socket, so
Intel dubbed the socket for Pentium M "Socket 479". The Core
Duo / Solo also has 478 pins, but it is not compatible with either the
Pentium M 479 socket or the Pentium IV 478 socket, despite looking almost
identical. So Pentium M 479 boards cannot run Core Duo / Solo, and Core
Duo / Solo 479 boards cannot run Pentium M. To compound the confusion further, the Celeron M 300 series work with Pentium M boards, while the Celeron M 400 series works with Core Duo/Solo boards. The yet-to-come Merom core
processors will be compatible with the 479 Core Solo / Duo socket, as
far as we know.
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The supplied HSF has multicolor LEDs.
Power measurements were performed in three states to establish the full range of
power consumption:
- Enhanced Intel Speed Step (EIST) enabled idle.
- Under maximum CPU load using CPUBurn.
- Under maximum system load load using CPUBurn to stress the CPU and
RTHDRIBL
to stress the graphics card.
Two power measurements were taken in each state:
- DC power at the 2x12V (AUX12V) connector on the motherboard. This involves a high precision LTS 25-NP Current Sensor, courtesy of Intel, plugged directly into the 2x12V connector on
the motherboard, so that all power through this connection passed through
the power meter. The line voltage (nominally +12V) and the current are measured
with multimeters, and multiplied together to get the total power running through
the connection. Because the CPU only draws power through the 2x12V connection
and nothing else does, this measurement tells us the amount of power consumed by the
CPU and the voltage regulators on the
motherboard.
- Total AC power consumed by the system, measured with an Extech
Power Analyzer / Data Logger 380803 power meter.
Other Test Tools:
- High accuracy Extech MM560 True RMS multimeter.
- Two other multimeters of good precision.
- Fan speeds, temperatures and processor voltage was monitored using SpeedFan
4.28 and with CPU-Z.
Ambient conditions were 22°C
and 20 dBA throughout testing. All stress tests were run for ~30 minutes before measurements were recorded.
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