NEC Intel Xeon E5-2430 N8101-563F User Manual

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Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families

Datasheet Volume One

The processor supports Enhanced Intel SpeedStep® Technology as an advanced means 
of enabling very high performance while also meeting the power-conservation needs of 

the platform.

Enhanced Intel SpeedStep Technology builds upon that architecture using design 

strategies that include the following:

• Separation between Voltage and Frequency Changes. By stepping voltage up 

and down in small increments separately from frequency changes, the processor is 

able to reduce periods of system unavailability (which occur during frequency 
change). Thus, the system is able to transition between voltage and frequency 

states more often, providing improved power/performance balance. 

• Clock Partitioning and Recovery. The bus clock continues running during state 

transition, even when the core clock and Phase-Locked Loop are stopped, which 

allows logic to remain active. The core clock is also able to restart more quickly 
under Enhanced Intel SpeedStep Technology.

For additional information on Enhanced Intel SpeedStep Technology see 

Intel® Intelligent Power Technology conserves power while delivering advanced power-

management capabilities at the rack, group, and data center level. Providing the 

highest system-level performance per watt with “Automated Low Power States” and 
“Integrated Power Gates”. Improvements to this processor generation are:

• Intel Network Power Management Technology
• Intel Power Tuning Technology

For more information on Intel Intelligent Power Technology, see this link 

.

Intel® Advanced Vector Extensions (Intel® AVX) is a new 256-bit vector SIMD 
extension of Intel Architecture. The introduction of Intel AVX starts with the 2nd 

Generation Intel(r) Core(TM) Processor Family. Intel AVX accelerates the trend of 

parallel computation in general purpose applications like image, video, and audio 
processing, engineering applications such as 3D modeling and analysis, scientific 

simulation, and financial analysts.

Intel AVX is a comprehensive ISA extension of the Intel® 64 Architecture. The main 
elements of Intel AVX are:

• Support for wider vector data (up to 256-bit) for floating-point computation. 
• Efficient instruction encoding scheme that supports 3 operand syntax and 

headroom for future extensions. 

• Flexibility in programming environment, ranging from branch handling to relaxed 

memory alignment requirements. 

• New data manipulation and arithmetic compute primitives, including broadcast, 

permute, fused-multiply-add, and so forth.