Specifications

7 PowerEdge R820 Technical Guide
2 System features
Compared to the previous generation of Dell PowerEdge servers, the R820 has more drive bay
options, more PCIe slots, PCIe 3.0 support, more memory, a dual RAID controller option, optional
Express Flash PCIe SSDs, internal GPU support and advanced system management.
Comparison of PowerEdge systems
The PowerEdge R820 is a direct replacement for the R810. Table 2 compares some of the features
of the R820 to the R810. For the latest information on supported features, visit Dell.com/PowerEdge.
Table 2. Comparing the PowerEdge R810 to PowerEdge R820
Feature
PowerEdge R810
PowerEdge R820
Chassis
2U rack
2U rack
Processors
Intel Xeon processors 6500, 7500,
E7-2800, E7-4800 and E7-8800 series
Intel Xeon processor E5-4600 product
family
Internal interconnect
Intel QuickPath Interconnect
Intel QuickPath Interconnect
Memory
1
32 x DDR3 RDIMM and UDIMM
Up to 1TB
48 x DDR3 RDIMM, UDIMM and LRDIMM
Up to 1.5TB
Hard drive bays
(hot-plug)
6 x 2.5”
16 x 2.5”
RAID controller
PERC H200, H700, H800
PERC H310, H710, H710P, H810
Dual PERC option
Express Flash drives
N/A
Up to 4 Flash Express drives
PCI slots
7 PCIe 2.0 slots
7 PCIe 3.0 slots
Embedded NICs
4 x 1GbE with optional TOE
Select Network Adapter: minimum
configuration of 4 x 1GbE, 10GbE
(optional)
Power supplies
Hot-plug, redundant 1100W AC
Hot-plug, redundant 750W AC, 1100W AC,
1100W DC
Dell OpenManage
Systems Management
Dell OpenManage
Lifecycle Controller 1.x
iDRAC6 (Express or Enterprise) with
Lifecycle Controller 1.x
OpenManage Essentials
OMSA Agent
OpenManage Power Center (requires
iDRAC7 Enterprise with Lifecycle
Controller)
OpenManage Integrations and
Connections
iDRAC7 Express with Lifecycle Controller
(standard option)
Support for internal
GPU
No
Yes
Power efficiency
Gold
Titanium
Availability
Hot-plug drives
Hot-plug redundant cooling
Hot-plug redundant power supply units
Internal dual SD modules
Hot-plug drives
Hot-plug redundant cooling
Hot-plug redundant power supply units
Internal dual SD modules
1
GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating
environment and will be less.