Dell PowerEdge M820 Technical Manual page 15

The Dell PowerEdge M820 features the Intel Xeon processor E5-4600 product family, offering an
ideal combination of performance, power efficiency, and cost. These processors provide high
performance no matter what your constraint is—floor space, power, or budget—and on workloads
that range from the most complicated scientific exploration to crucial web-serving and
infrastructure applications. In addition to providing raw performance gains, improved I/O is also
made possible with Intel Integrated I/O, which can reduce latency by adding more lanes and
doubling bandwidth. This helps to reduce network and storage bottlenecks, unleashing the
processor's performance capabilities.
The new Intel Xeon processor E5-4600 product family not only adds new features, but also
improves upon many features of the predecessor Intel Xeon processor series. A summary of what's
new and improved includes the following:
Up to two additional cores and up to 8MB more last level cache

More memory—16 more DIMMs than previous-generation of full-height blade servers with

support for up to 32GB DIMMs, increasing memory capacity up to 1.5TB
Intel Integrated I/O has support for up to 80 lanes of PCIe 3.0, which can reduce latency

Faster connections are provided throughout the system with support for DDR3 1600MT/s

memory and 8.0GT/s QPI
Intel DDIO allows I/O traffic to skip the main system memory and be directed straight to the

processor cache, which can provide a significant reduction in latency as well as allowing
memory to remain in a low-power state
Intel Advanced Vector Extensions offer up to double the floating point operations per clock

cycle by doubling the length of registers, which can be useful for addressing very complex
problems or dealing with large-number calculations that are integral to many technical, financial,
and scientific computing problems
Intel Turbo Boost Technology 2.0 delivers up to double the boost than the previous-generation

turbo technology
Continued improvements to both Intel TXT and AES-NI help to better protect systems and data

For more information on the Intel Xeon processor E5-4600 product family, visit Intel.com.
PowerEdge M820 Technical Guide
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