Xeon E7-8870 vs Core i7-920

Primary details

Comparing Core i7-920 and Xeon E7-8870 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1914	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.22	no data
Market segment	Desktop processor	Server
Series	Core i7 (Desktop)	Intel Xeon E7
Architecture codename	Bloomfield (2008−2010)	Westmere-EX (2011)
Release date	November 2008 (15 years ago)	3 April 2011 (13 years ago)
Launch price (MSRP)	$340	$4,616
Current price	$70 (0.2x MSRP)	$159 (0x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-920 and Xeon E7-8870 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)	10 (Deca-Core)
Threads	8	20
Base clock speed	2.66 GHz	2.4 GHz
Boost clock speed	2.93 GHz	2.8 GHz
Bus support	1333 MHz	6.4 GT/s
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	256K (per core)
L3 cache	8 MB (shared)	30 MB (shared)
Chip lithography	45 nm	32 nm
Die size	263 mm2	513 mm2
Maximum core temperature	68 °C	69 °C
Number of transistors	731 million	2,600 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Core i7-920 and Xeon E7-8870 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	8
Socket	FCLGA1366,PLGA1366	FCLGA1567,LGA1567
Power consumption (TDP)	130 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-920 and Xeon E7-8870. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2
AES-NI	-	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	1.0
Hyper-Threading Technology	+	+
Idle States	+	no data
Thermal Monitoring	-	+
Demand Based Switching	-	no data
PAE	36 Bit	no data
Status	Discontinued	Discontinued

Security technologies

Core i7-920 and Xeon E7-8870 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-920 and Xeon E7-8870 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-920 and Xeon E7-8870. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	24 GB	4 TB
Max memory channels	3	4
Maximum memory bandwidth	25.6 GB/s	34.113 GB/s
ECC memory support	-	+

Pros & cons summary

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Physical cores	4	10
Threads	8	20
Cost	$340	$4616
Chip lithography	45 nm	32 nm

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Should you still have questions on choice between Core i7-920 and Xeon E7-8870, ask them in Comments section, and we shall answer.

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