Xeon Silver 4108 vs W-2155

Primary details

Comparing Xeon W-2155 and Xeon Silver 4108 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	510	1070
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	20.22	19.34
Market segment	Server	Server
Series	Intel Xeon W	Intel Xeon Silver
Architecture codename	Skylake (server) (2017−2019)	Skylake (server) (2017−2019)
Release date	29 August 2017 (6 years ago)	11 July 2017 (6 years ago)
Launch price (MSRP)	$1,440	$417
Current price	$430 (0.3x MSRP)	$113 (0.3x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon W-2155 has 5% better value for money than Xeon Silver 4108.

Detailed specifications

Xeon W-2155 and Xeon Silver 4108 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)	8 (Octa-Core)
Threads	20	16
Base clock speed	3.3 GHz	1.8 GHz
Boost clock speed	4.5 GHz	3 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	64K (per core)	512 KB
L2 cache	1 MB (per core)	8 MB
L3 cache	13.75 MB (shared)	11 MB
Chip lithography	14 nm	14 nm
Die size	484 mm2	no data
Maximum core temperature	68 °C	77 °C
Maximum case temperature (TCase)	68 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	No	No

Compatibility

Information on Xeon W-2155 and Xeon Silver 4108 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	2 (Multiprocessor)
Socket	FCLGA2066	FCLGA3647
Power consumption (TDP)	140 Watt	85 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2155 and Xeon Silver 4108. 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® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	no data
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	-
Status	Discontinued	Discontinued

Security technologies

Xeon W-2155 and Xeon Silver 4108 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2155 and Xeon Silver 4108 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 Silver 4108. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666	DDR4-2400
Maximum memory size	512 GB	768 GB
Max memory channels	4	6
Maximum memory bandwidth	85.3 GB/s	115.212 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon W-2155 and Xeon Silver 4108.

PCIe version	3.0	3.0
PCI Express lanes	48	48

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.

W-2155 outperforms Silver 4108 by 137% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	13.63	5.74
Recency	29 August 2017	11 July 2017
Physical cores	10	8
Threads	20	16
Cost	$1440	$417
Power consumption (TDP)	140 Watt	85 Watt

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Should you still have questions on choice between Xeon W-2155 and Xeon Silver 4108, ask them in Comments section, and we shall answer.

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