Xeon E7-8891 v4 vs X5687

Primary details

Comparing Xeon X5687 and Xeon E7-8891 v4 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1480	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.08	no data
Market segment	Server	Server
Architecture codename	Westmere-EP (2010−2011)	no data
Release date	14 February 2011 (13 years ago)	1 April 2016 (8 years ago)
Launch price (MSRP)	$121	no data
Current price	$267 (2.2x MSRP)	$7999

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon X5687 and Xeon E7-8891 v4 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	3.6 GHz	2.8 GHz
Boost clock speed	3.86 GHz	3.5 GHz
L1 cache	64 KB (per core)	no data
L2 cache	256 KB (per core)	no data
L3 cache	12 MB (shared)	60 MB
Chip lithography	32 nm	14 nm
Die size	239 mm2	no data
Maximum core temperature	80 °C	79 °C
Number of transistors	1,170 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Xeon X5687 and Xeon E7-8891 v4 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	2	8
Socket	FCLGA1366,LGA1366	FCLGA2011
Power consumption (TDP)	130 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X5687 and Xeon E7-8891 v4. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® AVX2
AES-NI	+	+
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	2.0
Hyper-Threading Technology	+	+
TSX	no data	+
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	+	no data
PAE	40 Bit	46 Bit
Instruction Replay	no data	-
Status	Discontinued	Discontinued

Security technologies

Xeon X5687 and Xeon E7-8891 v4 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X5687 and Xeon E7-8891 v4 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X5687 and Xeon E7-8891 v4. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-1333, DDR4-1600, DDR4-1866, DDR3-1066, DDR3-1333, DDR3-1600
Maximum memory size	288 GB	3 TB
Max memory channels	3	4
Maximum memory bandwidth	32 GB/s	85 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon X5687 and Xeon E7-8891 v4.

PCIe version	2.0	3.0
PCI Express lanes	no data	32

Pros & cons summary

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Recency	14 February 2011	1 April 2016
Physical cores	4	10
Threads	8	20
Chip lithography	32 nm	14 nm
Power consumption (TDP)	130 Watt	165 Watt

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Should you still have questions on choice between Xeon X5687 and Xeon E7-8891 v4, ask them in Comments section, and we shall answer.

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