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Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families 85
Datasheet Volume One
Technologies
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.
3.8 Intel® Dynamic Power Technology (Intel® DPT)
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.
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