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Product NameIntel® 82801JR I/O Controller Intel® 5520 I/O Hub Intel® Xeon® Processor E5540 (8M Cache, 2.53 GHz, 5.86 GT/s Intel® QPI) Intel® Xeon® Processor E5504 (4M Cache, 2.00 GHz, 4.80 GT/s Intel® QPI) Intel® Xeon® Processor L5508 (8M Cache, 2.00 GHz, 5.86 GT/s Intel® QPI) Intel® Xeon® Processor L5518 (8M Cache, 2.13 GHz, 5.86 GT/s Intel® QPI) Intel® Xeon® Processor E5620 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI) Intel® Xeon® Processor L5638 (12M Cache, 2.00 GHz, 5.86 GT/s Intel® QPI) Intel® Xeon® Processor L5618 (12M Cache, 1.87 GHz, 5.86 GT/s Intel® QPI) Intel® Xeon® Processor E5645 (12M Cache, 2.40 GHz, 5.86 GT/s Intel® QPI)
Code Name ICH10 Tylersburg Nehalem-EP Nehalem-EP Nehalem-EP Nehalem-EP Westmere-EP Westmere-EP Westmere-EP Westmere-EP
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Essentials
StatusLaunchedLaunchedLaunchedLaunchedLaunchedLaunchedLaunchedLaunchedLaunchedLaunched
Launch DateQ3'08Q1'09Q1'09Q1'09Q1'09Q1'09Q1'10Q1'10Q1'10Q1'10
Embedded Options AvailableYesYesYesYesYesYesYesYesYesYes
Lithography 65 nm45 nm45 nm45 nm45 nm32 nm32 nm32 nm32 nm
Max TDP4.5 W27.1 W80 W80 W38 W60 W80 W60 W40 W80 W
Recommended Customer PriceT&R : $18.00T&R : $42.00TRAY: $744.00
BOX : $777.00
TRAY: $218.00
BOX : $235.00
TRAY: $398.00TRAY: $499.00TRAY: $387.00
BOX : $391.00
TRAY: $574.00TRAY: $477.00TRAY: $551.00
BOX : $554.00
Processor Number E5540E5504L5508L5518E5620L5638L5618E5645
Supported FSBs 6.40 GT/s
# of Cores 44244646
FSB Parity No
# of Threads 8448812812
Clock Speed 2.53 GHz2 GHz2 GHz2.13 GHz2.4 GHz2 GHz1.87 GHz2.4 GHz
Max Turbo Frequency 2.8 GHz 2.4 GHz2.4 GHz2.66 GHz2.4 GHz2.26 GHz2.67 GHz
Cache 8 MB Intel® Smart Cache4 MB Intel® Smart Cache8 MB Intel® Smart Cache8 MB Intel® Smart Cache12 MB Intel® Smart Cache12 MB 12 MB 12 MB Intel® Smart Cache
Bus Type QPIQPIQPIQPIQPIQPIQPIQPI
System Bus 5.86 GT/s4.8 GT/s5.86 GT/s5.86 GT/s5.86 GT/s5.86 GT/s5.86 GT/s5.86 GT/s
# of QPI Links 222222 2
Instruction Set 64-bit64-bit64-bit64-bit64-bit 64-bit
Instruction Set Extensions SSE4.2 SSE4.2
VID Voltage Range 0.75V -1.35V0.75V -1.35V0.75V -1.35V0.75V -1.35V0.750V-1.350V1.0 - 1.5V1.0 - 1.5V0.750V-1.350V
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Memory Specifications
Max Memory Size (dependent on memory type) 144 GB144 GB144 GB144 GB288 GB 288 GB
Memory Types DDR3-800/1066DDR3 800DDR3-800/1066DDR3-800/1066DDR3-800/1066 DDR3-800/1066/1333
# of Memory Channels 33333 3
Max Memory Bandwidth 25.6 GB/s19.2 GB/s25.6 GB/s25.6 GB/s25.6 GB/s 32 GB/s
Physical Address Extensions 40-bit40-bit40-bit40-bit40-bit 40-bit
ECC Memory Supported YesYesYesYesYes Yes
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Graphics Specifications
Macrovision* License Required No
Integrated Graphics No
Processor Graphics No No
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Expansion Options
PCI Express Revision 1.1/2.0
PCI Express Configurations 36 Lanes, 4x8, and 1x4
# of PCI Express Lanes 36
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I/O Specifications
USB RevisionUSB 2.0
# of USB Ports12
Total # of SATA Ports6
Integrated LAN10/100/1000
Integrated IDENone
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Package Specifications
TCASE105°C95.1°C76°C76°C85°C85°C77.6°C85°C87°C76.2°C
Package Size31mm x 31mm35.5mm x 35.5mm42.5mm x 45mm42.5mm x 45mm42.5mm x 45mm42.5mm x 45mm42.5mm X 45mm 42.5mm X 45mm
Low Halogen Options AvailableSee MDDSSee MDDSSee MDDSSee MDDSSee MDDSSee MDDSSee MDDSSee MDDSSee MDDSSee MDDS
Max CPU Configuration 222222 2
Processing Die Size 263 mm2 263 mm2263 mm2
# of Processing Die Transistors 731 million 731 million731 million
Sockets Supported FCLGA1366FCLGA1366FCLGA1366FCLGA1366FCLGA1366FCLGA1366FCLGA1366FCLGA1366
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Advanced Technologies
Intel® Virtualization Technology for Directed I/O (VT-d)YesYesYesYesYesYesYesYesYesYes
Intel® Trusted Execution TechnologyYesYesNoNoNoNoYesYesYesYes
Intel® Active Management TechnologyYes
Intel® Quick Resume TechnologyYes
Intel® Quiet System TechnologyYes
Intel® HD Audio TechnologyYes
Intel® AC97 TechnologyNo
Intel® Matrix Storage TechnologyYes
Intel® Turbo Boost TechnologyYesNoYesYesYesYesYesYes
Intel® Hyper-Threading Technology YesNoYesYesYesYesYesYes
Intel® Virtualization Technology (VT-x) YesYesYesYesYesYesYesYes
AES New Instructions YesYesYesYes
Intel® 64 YesYesYesYesYesYesYesYes
Idle States YesYesYesYesYesYesYesYes
Enhanced Intel SpeedStep® Technology YesYesYesYesYes Yes
Intel® Demand Based Switching YesYesYesYesYes Yes
Thermal Monitoring Technologies No No
Execute Disable Bit YesYesYesYesYes Yes
Intel® VT-x with Extended Page Tables (EPT) YesYesYesYesYesYesYesYes