NEC Intel Xeon E5-2407 N8101-562F User Manual

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

85

Datasheet Volume One

The key advantages of Intel AVX are:

• Performance - Intel AVX can accelerate application performance via data 

parallelism and scalable hardware infrastructure across existing and new 

application domains: 

— 256-bit vector data sets can be processed up to twice the throughput of 128-bit 

data sets. 

— Application performance can scale up with number of hardware threads and 

number of cores. 

— Application domain can scale out with advanced platform interconnect fabrics, 

such as Intel QPI. 

• Power Efficiency - Intel AVX is extremely power efficient. Incremental power is 

insignificant when the instructions are unused or scarcely used. Combined with the 

high performance that it can deliver, applications that lend themselves heavily to 

using Intel AVX can be much more energy efficient and realize a higher 
performance-per-watt. 

• Extensibility - Intel AVX has built-in extensibility for the future vector extensions: 

— OS context management for vector-widths beyond 256 bits is streamlined. 
— Efficient instruction encoding allows unlimited functional enhancements: 

• Vector width support beyond 256 bits
• 256-bit Vector Integer processing 
• Additional computational and/or data manipulation primitives. 

• Compatibility - Intel AVX is backward compatible with previous ISA extensions 

including Intel® SSE4: 

— Existing Intel SSE applications/library can:

• Run unmodified and benefit from processor enhancements
• Recompile existing Intel SSE intrinsic using compilers that generate Intel 

AVX code

• Inter-operate with library ported to Intel AVX

— Applications compiled with Intel AVX can inter-operate with existing Intel SSE 

libraries.

Intel® Dynamic Power Technology (Intel® DPT) (Memory Power Management) is a 

platform feature with the ability to transition memory components into various low 
power states based on workload requirements. The Intel® Xeon® processor E5-1600/

E5-2600/E5-4600 product families platform supports Dynamic CKE (hardware assisted) 

and Memory Self Refresh (software assisted). For further details refer to the ACPI 
Specifications for Memory Power Management

 document.