Xeon Platinum 8276 vs Ultra 7 155H

Primary details

Comparing Core Ultra 7 155H and Xeon Platinum 8276 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	425	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Meteor Lake-H	Intel Xeon Platinum
Power efficiency	53.33	no data
Architecture codename	Meteor Lake-H (2023)	Cascade Lake-SP (2018)
Release date	14 December 2023 (less than a year ago)	11 December 2018 (5 years ago)
Launch price (MSRP)	$503	$8,719

Detailed specifications

Core Ultra 7 155H and Xeon Platinum 8276 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	16 (Hexadeca-Core)	28 (Octacosa-Core)
Threads	22	56
Base clock speed	3.8 GHz	2.2 GHz
Boost clock speed	4.8 GHz	4 GHz
Multiplier	no data	22
L1 cache	112 KB (per core)	64 KB (per core)
L2 cache	2 MB (per core)	1 MB (per core)
L3 cache	24 MB (shared)	38.5 MB (shared)
Chip lithography	Intel 4 nm	14 nm
Maximum core temperature	110 °C	89 °C
Number of transistors	no data	8,000 million
64 bit support	+	+
Windows 11 compatibility	no data	+

Compatibility

Information on Core Ultra 7 155H and Xeon Platinum 8276 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 (Multiprocessor)
Socket	FCBGA2049	FCLGA3647
Power consumption (TDP)	28 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 7 155H and Xeon Platinum 8276. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	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	+	-
Deep Learning Boost	+	+
Supported AI Software Frameworks	OpenVINO™, WindowsML, ONNX RT	-

Security technologies

Core Ultra 7 155H and Xeon Platinum 8276 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 7 155H and Xeon Platinum 8276 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 155H and Xeon Platinum 8276. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	DDR4-2933
Maximum memory size	96 GB	1 TB
Max memory channels	2	6
Maximum memory bandwidth	no data	140.8 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Arc™ graphics	N/A
Quick Sync Video	+	-
Graphics max frequency	2.25 GHz	no data

Graphics interfaces

Available interfaces and connections of Core Ultra 7 155H and Xeon Platinum 8276 integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core Ultra 7 155H and Xeon Platinum 8276 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 155H and Xeon Platinum 8276 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 155H and Xeon Platinum 8276.

PCIe version	5.0	3.0
PCI Express lanes	8	48
PCI support	5.0 and 4.0	no data

Pros & cons summary

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Recency	14 December 2023	11 December 2018
Physical cores	16	28
Threads	22	56
Power consumption (TDP)	28 Watt	165 Watt

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Should you still have questions on choice between Core Ultra 7 155H and Xeon Platinum 8276, ask them in Comments section, and we shall answer.

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