User Manual
Dell 
PowerEdge R610 Technical Guide      26 
 Feature  5500 Series  5600 Series 
Intel
®
 Hyper-Threading 
Technology 
Yes  Yes 
Socket  LGA1366  LGA1366 
6.2 Features 
Key features of the Intel Xeon processor 5500 and 5600 series include:  
•  Two, four, or six cores per processor  
•  Two point-to-point QuickPath Interconnect links at 6.4 GT/s  
•  1366-pin FC-LGA package  
•  32 nm and 45 nm process technology  
•  No termination required for non-populated processors (must populate CPU socket 1 first)  
•  Integrated QuickPath DDR3 memory controller 64-byte cache line size RISC/CISC hybrid 
architecture  
•  Compatible with existing x86 code base  
•  MMX™ support—Execute Disable Bit Intel Wide Dynamic Execution 
•  Ability to executes up to four instructions per clock cycle  
•  Simultaneous Multi-Threading (SMT) capability  
•  Support for CPU Turbo Mode (on certain processors)—increases processor frequency if 
operating below thermal, power, and current limits for streaming SIMD (Single Instruction, 
Multiple Data) Extensions 2, 3, and 4  
•  Intel 64 Technology Intel VT-x and VT-d Technology for virtualization support Enhanced Intel 
SpeedStep
®
 Technology  
•  Demand-based switching for active processor power management as well as support for ACPI 
P-States, C-States and T-States 
•  Support for DDR3L, 1.35v DIMMs for even lower system power (5600 series) 
•  Support for memory sparing (5600 series) 
•  AES-NI (hardware encryption assist) for more efficient encryption for uses such as online 
transactions SSL (5600 series) 
•  Intel TXT (Trusted Execution Technology) provides hardware assisted protection against 
emerging software attacks (5600 series) 
6.3 Supported Processors 
For the latest information on supported processors for the PowerEdge R610, visit Dell.com. 
Table 9.  Supported Processors 
Model  Speed  Power  Cache  Cores  QPI Speed 
X5680   3.33GHz  130W  12M  6  6.4GT/s 
X5670   2.93GHz  95W  12M  6  6.4GT/s 
X5660   2.80GHz  95W  12M  6  6.4GT/s 
X5650   2.66GHz  95W  12M  6  6.4GT/s 
L5640   2.26GHz  60W  12M  6  5.86GT/s 










