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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
End of Interactive Support Launched End of Life
Launch Date
Q2'09 Q1'12 Q2'12
Processor Number
i7-975 E5-1620 E3-1290V2
8 MB Intel® Smart Cache 10 MB Intel® Smart Cache 8 MB Intel® Smart Cache
Bus Type
System Bus
6.4 GT/s 0 5 GT/s
# of QPI Links
1 0
Instruction Set
64-bit 64-bit 64-bit
Instruction Set Extensions
SSE4.2 AVX SSE4.1/4.2, AVX
Embedded Options Available
No No No
45 nm 32 nm 22 nm
VID Voltage Range
0.800V-1.375V 0.60V - 1.35V
Recommended Customer Price
BOX : $1059.00 TRAY: $294.00 TRAY: $885.00
Link Link Link
# of Cores
4 4 4
# of Threads
8 8 8
Processor Base Frequency
3.33 GHz 3.6 GHz 3.7 GHz
Max Turbo Frequency
3.6 GHz 3.8 GHz 4.1 GHz
130 W 130 W 87 W
Memory Specifications
Max Memory Size (dependent on memory type)
24 GB 375 GB 32 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
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
Sockets Supported
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
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