Xeon E5-2686 v4 vs W-2155

Primary details

Comparing Xeon W-2155 and Xeon E5-2686 v4 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	558	594
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	7.70	no data
Market segment	Server	Server
Series	Intel Xeon W	Intel Xeon E5
Power efficiency	8.97	8.34
Architecture codename	Skylake (server) (2017−2019)	Broadwell (2015−2019)
Release date	29 August 2017 (7 years ago)	20 June 2016 (8 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 E5-2686 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	10 (Deca-Core)	18 (Octadeca-Core)
Threads	20	36
Base clock speed	3.3 GHz	2.3 GHz
Boost clock speed	4.5 GHz	3 GHz
Bus type	DMI 3.0	QPI
Bus rate	4 × 8 GT/s	2 × 9.6 GT/s
Multiplier	33	23
L1 cache	640 KB	no data
L2 cache	10 MB	4.5 MB
L3 cache	13.75 MB (shared)	45 MB
Chip lithography	14 nm	14 nm
Die size	484 mm2	456.12 mm2
Maximum case temperature (TCase)	68 °C	no data
Number of transistors	no data	7200 Million
64 bit support	+	+
Windows 11 compatibility	+	-

Compatibility

Information on Xeon W-2155 and Xeon E5-2686 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	1 (Uniprocessor)	2 (Multiprocessor)
Socket	FCLGA2066	no data
Power consumption (TDP)	140 Watt	145 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2155 and Xeon E5-2686 v4. 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	no data
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	no data

Security technologies

Xeon W-2155 and Xeon E5-2686 v4 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2155 and Xeon E5-2686 v4 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 Xeon W-2155 and Xeon E5-2686 v4. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666	no data
Maximum memory size	512 GB	1,536 GB
Max memory channels	4	no data
Maximum memory bandwidth	85.33 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon W-2155 and Xeon E5-2686 v4.

PCIe version	3.0	3.0
PCI Express lanes	48	40

Synthetic benchmark performance

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

---

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.

---

Pros & cons summary

---

Performance score	13.77	13.26
Recency	29 August 2017	20 June 2016
Physical cores	10	18
Threads	20	36
Power consumption (TDP)	140 Watt	145 Watt

---

Should you still have questions on choice between Xeon W-2155 and Xeon E5-2686 v4, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---