Xeon E-2478 vs W-11955M

Primary details

Comparing Xeon W-11955M and Xeon E-2478 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	505	314
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	48.35	82.64
Market segment	Server	Server
Series	Intel Tiger Lake	no data
Power efficiency	38.42	22.22
Architecture codename	Tiger Lake-H (2021)	Raptor Lake-S (2023−2024)
Release date	11 May 2021 (3 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$623	$568

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E-2478 has 71% better value for money than Xeon W-11955M.

Detailed specifications

Xeon W-11955M and Xeon E-2478 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)	8 (Octa-Core)
Threads	16	16
Base clock speed	2.1 GHz	2.8 GHz
Boost clock speed	5 GHz	5.2 GHz
Bus rate	8 GT/s	16 GT/s
L1 cache	80 KB (per core)	80 KB (per core)
L2 cache	1.25 MB (per core)	2 MB (per core)
L3 cache	24 MB (shared)	24 MB (shared)
Chip lithography	10 nm SuperFin	Intel 7 nm
Die size	190 mm2	257 mm2
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Xeon W-11955M and Xeon E-2478 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	FCBGA1787	FCLGA1700
Power consumption (TDP)	35 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-11955M and Xeon E-2478. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
FMA	+	-
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	no data
Turbo Boost Technology	no data	2
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	no data	+
Thermal Monitoring	+	+
Flex Memory Access	+	no data
SIPP	+	-
Turbo Boost Max 3.0	+	+
Deep Learning Boost	+	-

Security technologies

Xeon W-11955M and Xeon E-2478 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-11955M and Xeon E-2478 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-11955M and Xeon E-2478. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-4800
Maximum memory size	128 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	51.2 GB/s	no data
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

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

Graphics interfaces

Available interfaces and connections of Xeon W-11955M and Xeon E-2478 integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Xeon W-11955M and Xeon E-2478 integrated GPUs, including resolutions over different interfaces.

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

Graphics API support

APIs supported by Xeon W-11955M and Xeon E-2478 integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Xeon W-11955M and Xeon E-2478.

PCIe version	4.0	5
PCI Express lanes	20	16

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	14.21	18.78
Recency	11 May 2021	14 December 2023
Power consumption (TDP)	35 Watt	80 Watt

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Should you still have questions on choice between Xeon W-11955M and Xeon E-2478, ask them in Comments section, and we shall answer.

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