Xeon E7-8891 v3 vs W-2155

Primary details

Comparing Xeon W-2155 and Xeon E7-8891 v3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	567	552
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	7.28	no data
Market segment	Server	Server
Series	Intel Xeon W	no data
Power efficiency	8.98	7.81
Architecture codename	Skylake (server) (2017−2018)	Haswell-EX (2015)
Release date	29 August 2017 (7 years ago)	1 June 2015 (9 years ago)
Launch price (MSRP)	$1,440	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon W-2155 and Xeon E7-8891 v3 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	10 (Deca-Core)	10 (Deca-Core)
Threads	20	20
Base clock speed	3.3 GHz	2.8 GHz
Boost clock speed	4.5 GHz	3.5 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	9.6 GT/s
Multiplier	33	no data
L1 cache	64K (per core)	64K (per core)
L2 cache	1 MB (per core)	256K (per core)
L3 cache	13.75 MB (shared)	45 MB (shared)
Chip lithography	14 nm	22 nm
Die size	484 mm2	160 mm2
Maximum case temperature (TCase)	68 °C	79 °C
Number of transistors	no data	1,400 million
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Xeon W-2155 and Xeon E7-8891 v3 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)	8
Socket	FCLGA2066	FCLGA2011
Power consumption (TDP)	140 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2155 and Xeon E7-8891 v3. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® AVX2
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	46 Bit
Turbo Boost Max 3.0	-	no data

Security technologies

Xeon W-2155 and Xeon E7-8891 v3 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
MPX	+	-
Identity Protection	+	-
SGX	-	no data
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2155 and Xeon E7-8891 v3 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-2155 and Xeon E7-8891 v3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666	DDR4-1333/1600/1866, DDR3-1066/1333/1600
Maximum memory size	512 GB	1.5 TB
Max memory channels	4	4
Maximum memory bandwidth	85.33 GB/s	85 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon W-2155 and Xeon E7-8891 v3.

PCIe version	3.0	3.0
PCI Express lanes	48	32

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	13.28	13.61
Recency	29 August 2017	1 June 2015
Chip lithography	14 nm	22 nm
Power consumption (TDP)	140 Watt	165 Watt

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Should you still have questions on choice between Xeon W-2155 and Xeon E7-8891 v3, ask them in Comments section, and we shall answer.

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