Xeon Platinum 8490H vs W-11955M

Primary details

Comparing Xeon W-11955M and Xeon Platinum 8490H processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	504	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	48.54	no data
Market segment	Server	Server
Series	Intel Tiger Lake	no data
Power efficiency	38.45	no data
Architecture codename	Tiger Lake-H (2021)	Sapphire Rapids (2023−2024)
Release date	11 May 2021 (3 years ago)	10 January 2023 (1 year ago)
Launch price (MSRP)	$623	$17,000

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon W-11955M and Xeon Platinum 8490H 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)	60 (Hexaconta-Core)
Threads	16	120
Base clock speed	2.1 GHz	1.9 GHz
Boost clock speed	5 GHz	3.5 GHz
Bus rate	8 GT/s	no data
L1 cache	80 KB (per core)	80K (per core)
L2 cache	1.25 MB (per core)	2 MB (per core)
L3 cache	24 MB (shared)	112.5 MB
Chip lithography	10 nm SuperFin	Intel 7 nm
Die size	190 mm2	4x 477 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	79 °C
64 bit support	+	+
Windows 11 compatibility	+	+

Compatibility

Information on Xeon W-11955M and Xeon Platinum 8490H 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	8
Socket	FCBGA1787	FCLGA4677
Power consumption (TDP)	35 Watt	350 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-11955M and Xeon Platinum 8490H. 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® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
FMA	+	-
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Thermal Monitoring	+	-
Flex Memory Access	+	no data
SIPP	+	-
Turbo Boost Max 3.0	+	no data
Deep Learning Boost	+	+

Security technologies

Xeon W-11955M and Xeon Platinum 8490H technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	no data	+
Secure Key	+	no data
SGX	-	Yes with Intel® SPS
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-11955M and Xeon Platinum 8490H 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 Platinum 8490H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5-4800, DDR5-4400
Maximum memory size	128 GB	4 TB
Max memory channels	2	8
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	no data
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 Platinum 8490H integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Xeon W-11955M and Xeon Platinum 8490H 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 Platinum 8490H 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 Platinum 8490H.

PCIe version	4.0	5.0
PCI Express lanes	20	80

Pros & cons summary

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Recency	11 May 2021	10 January 2023
Physical cores	8	60
Threads	16	120
Power consumption (TDP)	35 Watt	350 Watt

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Should you still have questions on choice between Xeon W-11955M and Xeon Platinum 8490H, ask them in Comments section, and we shall answer.

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