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Compare Intel® Products

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Product Name
Intel® Core™ i7-975 Processor Extreme Edition (8M Cache, 3.33 GHz, 6.40 GT/s Intel® QPI) Intel® Xeon® Processor E5-1620 (10M Cache, 3.60 GHz, 0.0 GT/s Intel® QPI) Intel® Xeon® Processor E3-1290 v2 (8M Cache, 3.70 GHz)
Code Name
Bloomfield Sandy Bridge EP Ivy Bridge
Processor Number
i7-975 E5-1620 E3-1290V2
End of Interactive Support End of Life End of Life
Launch Date
Q2'09 Q1'12 Q2'12
45 nm 32 nm 22 nm
Recommended Customer Price
$1059.00 $294.00 $885.00
Expected Discontinuance
# of Cores
4 4 4
# of Threads
8 8 8
Processor Base Frequency
3.33 GHz 3.60 GHz 3.70 GHz
Max Turbo Frequency
3.60 GHz 3.80 GHz 4.10 GHz
8 MB SmartCache 10 MB SmartCache 8 MB SmartCache
Bus Speed
6.4 GT/s QPI 0 QPI 5 GT/s DMI
# of QPI Links
1 0
130 W 130 W 87 W
VID Voltage Range
0.800V-1.375V 0.60V - 1.35V
Supplemental Information
Embedded Options Available
No No No
Link Link Link
Conflict Free
Memory Specifications
Max Memory Size (dependent on memory type)
24 GB 375 GB 32.77 GB
Memory Types
DDR3 800/1066 DDR3 800/1066/1333/1600 DDR3 1333/1600
Max # of Memory Channels
3 4 2
Max Memory Bandwidth
25.6 GB/s 51.2 GB/s 25.6 GB/s
Physical Address Extensions
ECC Memory Supported
No Yes Yes
Package Specifications
Sockets Supported
Max CPU Configuration
1 1 1
67.9°C 64.0 °C
Package Size
42.5mm x 45.0mm 52.5mm x 45.0 mm 37.5mm x 37.5mm
Processing Die Size
263 mm2
# of Processing Die Transistors
731 million
Low Halogen Options Available
Advanced Technologies
Intel® Turbo Boost Technology
1.0 2.0 2.0
Intel® Hyper-Threading Technology
Yes Yes Yes
Intel® Virtualization Technology (VT-x)
Yes Yes Yes
Intel® VT-x with Extended Page Tables (EPT)
Yes Yes Yes
Intel® 64
Yes Yes Yes
Instruction Set
64-bit 64-bit 64-bit
Instruction Set Extensions
SSE4.2 AVX SSE4.1/4.2, AVX
Idle States
Yes Yes Yes
Enhanced Intel SpeedStep® Technology
Yes Yes Yes
Intel® Demand Based Switching
No Yes Yes
Thermal Monitoring Technologies
No Yes Yes
Intel® vPro Technology
Yes Yes
Intel® Virtualization Technology for Directed I/O (VT-d)
Yes Yes
Intel® Flex Memory Access
No Yes
Intel® Identity Protection Technology
No Yes
Intel® TSX-NI
Intel® Fast Memory Access
Intel® Data Protection Technology
Intel® AES New Instructions
No Yes Yes
Intel® Platform Protection Technology
Trusted Execution Technology
No Yes Yes
Execute Disable Bit
Yes Yes Yes
Expansion Options
PCI Express Revision
3.0 3.0
Max # of PCI Express Lanes
PCI Express Configurations
1x16 & 1x4, 2x8 & 1x4 or 1x8 & 3x4