Dell External OEM Ready T420 Technical Manual
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The Dell PowerEdge T420 features the Intel Xeon processor E5-2400 product family, which offers
an ideal combination of performance, power efficiency, and cost. These processors provide
substantial performance and capacity for entry and mainstream workloads, as well as applications
requiring significant memory and I/O scalability no matter what your constraint is—floor space,
power, or budget. 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 E5-2400 product family provides the following features:
2-socket processor design with power and dimensions optimized for density
Up to 8 execution cores per processor
Intel Hyper-Threading technology enables up to 16 computational threads
Micro-architecture on 32nm process for greater performance per watt
Support for more memory—4 additional DIMMs (up to 12 DIMM slots) and support for up to
32GB DIMMs increasing the memory capacity from 128GB to 384GB
Integrated memory controller with 3 channels of DDR3 and 46-bit physical addressing facilitate
greater memory capacity
Intel Integrated I/O has support for up to 24 lanes per socket of PCIe 3.0 links (for more
information on PCIe lanes, see the specifications in the System features section)
Faster connections throughout the system with support for DDR3 1600MT/s memory and
8.0GT/s QPI
Intel Data Direct I/O (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
High bandwidth, low latency, bidirectional ring interconnect allows faster access to the 20MB
multi-banked last level cache
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, which are integral to many technical,
financial, and scientific computing problems
Intel Turbo Boost Technology 2.0, which allows processor cores to run faster than the base
operating frequency if it's operating below power, current, and temperature specification limits,
delivers up to double the boost than the previous generation
Continued improvements to both Intel TXT and AES-NI help to better protect systems and data
For more information on the Intel Xeon processor E5-2400 product family, visit Intel.com.
Table 7 lists the Intel Xeon processors supported by the PowerEdge T420. For the latest information
on supported processors, visit Dell.com/PowerEdge.