Техническая Спецификация для Intel C2350 FH8065401488914
Модели
FH8065401488914
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 1 of 3
Order Number: 330061-002US
51
Volume 2—Multi-Core Intel
®
Atom™ Processors—C2000 Product Family
Features
2.4.4
Intel
®
Turbo Boost Technology
Note:
Intel Turbo Boost Technology may not be available on all SKUs.
Intel Turbo Boost Technology increases the ratio of application power to TDP. Thus,
thermal solutions and platform cooling that are designed to less than thermal design
guidance experience thermal and performance issues since more applications tend to
run at the maximum power limit for significant periods of time. Refer to the BIOS
Writer’s Guide (BWG) and the Turbo Implementation Guide for more information.
• Intel Turbo Boost Technology is a feature that allows the processor to
opportunistically and automatically run faster than its rated operating core and/or
render clock frequency when there is sufficient power headroom, and the product is
within specified temperature and current limits. The Intel Turbo Boost Technology
feature increases performance of both multi-threaded and single-threaded
workloads. The processor supports a turbo mode where the processor uses the
thermal capacity associated with the package and run at power levels higher than
TDP power for short durations. This improves the system responsiveness for short,
bursty usage conditions. The turbo feature needs to be properly enabled by the
BIOS for the processor to operate with maximum performance. Refer to the BIOS
Writer's Guide for enabling details. Since the turbo feature is configurable and
dependent on many platform design limits outside of the processor control, the
maximum performance cannot be ensured. Turbo mode availability is independent
of the number of active cores; however, the turbo mode frequency is dynamic and
dependent on the instantaneous application power load, the number of active
cores, user configurable settings, operating environment, and system design.
2.4.4.1
Intel
®
Turbo Boost Technology Frequency
The processor's rated frequency assumes that all execution cores are active and are at
the sustained Thermal Design Power (TDP). However, under a typical operation not all
cores are active or executing a high-power workload. Most applications are consuming
less than the TDP at the rated frequency. Intel Turbo Boost Technology takes advantage
of the available TDP headroom and active cores are able to increase their operating
frequency. To determine the highest performance frequency amongst active cores, the
processor takes the following into consideration to recalculate turbo frequency during
runtime:
• Number of cores operating in the C0 state
• Estimated core current consumption
• Estimated package prior and present power consumption
• Package temperature
• Estimated core current consumption
• Estimated package prior and present power consumption
• Package temperature
Any of these factors affect the maximum frequency for a given workload. If the power,
current, or thermal limit is reached, the processor automatically reduces the frequency
to stay with its TDP limit. Turbo processor frequencies are only active if the operating
system is requesting the P0 state.
Core Turbo Boost frequencies may vary slightly from specified frequencies due to
variances in the base clock frequency which is based on the installed DIMM speeds. The
base clock frequency for 1600 MTS DIMMs will be 100 MHz while the base clock
frequency for 1333 MTS DIMMs will be 83.3 MHz. This different base clock frequency
and the fact that the Turbo Boost frequencies are derived based on a multiple of the
base clock frequency may result in a slightly higher or slightly lower Turbo Boost
Frequency than specified.