Xeon Platinum 8558P vs Ultra 7 155U

Primary details

Comparing Core Ultra 7 155U and Xeon Platinum 8558P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	733	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Meteor Lake-U	no data
Power efficiency	66.69	no data
Architecture codename	Meteor Lake-P (2023)	Emerald Rapids (2023)
Release date	14 December 2023 (less than a year ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$490	$6,759

Detailed specifications

Core Ultra 7 155U and Xeon Platinum 8558P 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	12 (Dodeca-Core)	48 (Octatetraconta-Core)
Threads	14	96
Base clock speed	1.7 GHz	2.7 GHz
Boost clock speed	4.8 GHz	4 GHz
L1 cache	112 KB (per core)	80 KB (per core)
L2 cache	2 MB (per core)	2 MB (per core)
L3 cache	12 MB (shared)	260 MB (shared)
Chip lithography	Intel 4 nm	Intel 7 nm
Die size	no data	2x 763 mm2
Maximum core temperature	110 °C	no data
Maximum case temperature (TCase)	no data	81 °C
64 bit support	+	+

Compatibility

Information on Core Ultra 7 155U and Xeon Platinum 8558P 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
Socket	FCBGA2049	FCLGA4677
Power consumption (TDP)	15 Watt	350 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 7 155U and Xeon Platinum 8558P. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
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
Turbo Boost Max 3.0	-	no data
Deep Learning Boost	+	+
Supported AI Software Frameworks	OpenVINO™, WindowsML, ONNX RT	-

Security technologies

Core Ultra 7 155U and Xeon Platinum 8558P technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 7 155U and Xeon Platinum 8558P are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 155U and Xeon Platinum 8558P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	DDR5 @ 5600 MT/s (1 DPC)
Maximum memory size	96 GB	4 TB
Max memory channels	2	8
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Graphics	N/A
Quick Sync Video	+	-
Graphics max frequency	1.95 GHz	no data

Graphics interfaces

Available interfaces and connections of Core Ultra 7 155U and Xeon Platinum 8558P integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core Ultra 7 155U and Xeon Platinum 8558P integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)	no data
Max resolution over eDP	3840x2400 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core Ultra 7 155U and Xeon Platinum 8558P integrated GPUs, sometimes API versions are included.

DirectX	12.2	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core Ultra 7 155U and Xeon Platinum 8558P.

PCIe version	4.0	5.0
PCI Express lanes	12	80
PCI support	4.0	no data

Pros & cons summary

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Physical cores	12	48
Threads	14	96
Power consumption (TDP)	15 Watt	350 Watt

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Should you still have questions on choice between Core Ultra 7 155U and Xeon Platinum 8558P, ask them in Comments section, and we shall answer.

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