Xeon E-2478 vs Core i7-975 Extreme Edition

Primary details

Comparing Core i7-975 Extreme Edition and Xeon E-2478 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Series	Intel Core i7EE	no data
Architecture codename	Nehalem (2008−2010)	Raptor Lake-S
Release date	2 June 2009 (15 years ago)	14 December 2023 (less than a year ago)
Current price	$250	no data

Detailed specifications

Core i7-975 Extreme Edition and Xeon E-2478 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	8 (Octa-Core)
Threads	8	16
Base clock speed	no data	2.8 GHz
Boost clock speed	3.33 GHz	5.2 GHz
Bus support	6.4 GT/s	no data
L1 cache	no data	80 KB (per core)
L2 cache	1 MB	2 MB (per core)
L3 cache	8 MB	24 MB (shared)
Chip lithography	45 nm	Intel 7 nm
Die size	263 mm2	257 mm2
Maximum core temperature	no data	100 °C
Number of transistors	731 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Core i7-975 Extreme Edition and Xeon E-2478 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	1
Socket	no data	FCLGA1700
Power consumption (TDP)	130 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-975 Extreme Edition and Xeon E-2478. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	no data	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	no data	2
Hyper-Threading Technology	no data	+
TSX	no data	-
Idle States	no data	+
Thermal Monitoring	no data	+
Turbo Boost Max 3.0	no data	+
Status	no data	Launched

Security technologies

Core i7-975 Extreme Edition and Xeon E-2478 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-975 Extreme Edition and Xeon E-2478 are enumerated here.

VT-d	no data	+
VT-x	no data	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-975 Extreme Edition and Xeon E-2478. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR5-4800
Maximum memory size	24 GB	128 GB
Max memory channels	no data	2
ECC memory support	no data	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Core i7-975 Extreme Edition and Xeon E-2478.

PCIe version	no data	5
PCI Express lanes	no data	20

Pros & cons summary

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Recency	2 June 2009	14 December 2023
Physical cores	4	8
Threads	8	16
Power consumption (TDP)	130 Watt	80 Watt

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Should you still have questions on choice between Core i7-975 Extreme Edition and Xeon E-2478, ask them in Comments section, and we shall answer.

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