Xeon W-11855M vs W-2145

General info

Comparing Xeon W-2145 and Xeon W-11855M processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	600	596
Place by popularity	not in top-100	not in top-100
Value for money	22.37	41.89
Market segment	Server	Server
Series	Intel Xeon W	Intel Tiger Lake
Architecture codename	Skylake-W (2018)	Tiger Lake-H (2021)
Release date	29 August 2017 (6 years ago)	11 May 2021 (2 years ago)
Launch price (MSRP)	$1,113	no data
Current price	$317 (0.3x MSRP)	$397

Value for money

Performance per price, higher is better.

Xeon W-11855M has 87% better value for money than Xeon W-2145.

Technical specs

Xeon W-2145 and Xeon W-11855M 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	8 (Octa-Core)	6 (Hexa-Core)
Threads	16	12
Base clock speed	3.7 GHz	3.2 GHz
Boost clock speed	4.5 GHz	4.9 GHz
L1 cache	64K (per core)	96K (per core)
L2 cache	1 MB (per core)	1.25 MB (per core)
L3 cache	11 MB (shared)	18 MB (shared)
Chip lithography	14 nm	10 nm SuperFin
Die size	484 mm2	no data
Maximum core temperature	70 °C	100 °C
Maximum case temperature (TCase)	70 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	No	No

Compatibility

Information on Xeon W-2145 and Xeon W-11855M 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	1
Socket	Socket R4	FCBGA1787
Power consumption (TDP)	140 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-2145 and Xeon W-11855M. 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® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
FMA	no data	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	-	+
SIPP	no data	+
Demand Based Switching	+	no data
PAE	46 Bit	no data
Turbo Boost Max 3.0	-	+
Status	Discontinued	Discontinued

Security technologies

Xeon W-2145 and Xeon W-11855M technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-2145 and Xeon W-11855M are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-2145 and Xeon W-11855M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4
Maximum memory size	512 GB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	85.3 GB/s	51.2 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® UHD Graphics for 11th Gen Intel® Processors
Quick Sync Video	no data	+
Graphics max frequency	no data	1.45 GHz
Execution Units	no data	32

Graphics interfaces

Available interfaces and connections of Xeon W-2145 and Xeon W-11855M integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Xeon W-2145 and Xeon W-11855M integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096x2304@60Hz
Max resolution over eDP	no data	4096x2304@60Hz
Max resolution over DisplayPort	no data	7680x4320@60Hz

Graphics API support

APIs supported by Xeon W-2145 and Xeon W-11855M integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Xeon W-2145 and Xeon W-11855M.

PCIe version	3.0	4.0
PCI Express lanes	48	20

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-11855M outperforms W-2145 by 1% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	11.75	11.82
Recency	29 August 2017	11 May 2021
Physical cores	8	6
Threads	16	12
Chip lithography	14 nm	10 nm
Power consumption (TDP)	140 Watt	35 Watt

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Should you still have questions on choice between Xeon W-2145 and Xeon W-11855M, ask them in Comments section, and we shall answer.

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