Dell PowerEdge T420 - 4 Processor; Processor Features; Supported Processors

17 PowerEdge T420 Technical Guide
4 Processor
The Dell PowerEdge T420 features the Intel Xeon processor E5-2400 series, 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.
Processor features
The new Intel Xeon processor E5-2400 series provides the following features:
 2-socket processor design with power and dimensions optimized for density
 Up to eight execution cores per processor
 Intel Hyper-Threading technology enabling up to 16 computational threads
 Micro-architecture on 32nm process for greater performance per watt
 Support for more memory — four 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 three channels of DDR3 and 46-bit physical addressing
facilitating 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) allowing 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 allowing faster access to the 20MB
multi-banked last level cache
 Intel Advanced Vector Extensions offering 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,
delivering up to double the boost than the previous generation
 Continued improvements to both Intel TXT and AES-NI helping to better protect systems and
data
For more information on the Intel Xeon processor E5-2400 series, visit Intel.com.
Supported processors
Table 7 lists the Intel Xeon processors supported by the PowerEdge T420. For the latest information
on supported processors, visit Dell.com/PowerEdge.