Xeon w5-2555X vs Ultra 9 285

Primary details

Comparing Core Ultra 9 285 and Xeon w5-2555X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	120
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Power efficiency	no data	12.27
Architecture codename	Arrow Lake-S (2024−2025)	no data
Release date	January 2025	1 July 2024 (less than a year ago)

Detailed specifications

Core Ultra 9 285 and Xeon w5-2555X 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	24 (Tetracosa-Core)	14 (Tetradeca-Core)
Threads	24	28
Base clock speed	2.5 GHz	3.3 GHz
Boost clock speed	5.6 GHz	4.8 GHz
L1 cache	112 KB (per core)	no data
L2 cache	3 MB (per core)	no data
L3 cache	36 MB (shared)	33.75 MB Intel® Smart Cache
Chip lithography	3 nm	Intel 7 nm
Die size	243 mm2	no data
Maximum core temperature	no data	75 °C
Number of transistors	17,800 million	no data
64 bit support	+	+
Unlocked multiplier	-	+

Compatibility

Information on Core Ultra 9 285 and Xeon w5-2555X 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	1851	FCLGA4677
Power consumption (TDP)	125 Watt	252 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 9 285 and Xeon w5-2555X. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	+	+
Turbo Boost Max 3.0	no data	+
Deep Learning Boost	-	+

Security technologies

Core Ultra 9 285 and Xeon w5-2555X technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 9 285 and Xeon w5-2555X are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 9 285 and Xeon w5-2555X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5 Depends on motherboard	DDR5-4800
Maximum memory size	no data	2 TB
Max memory channels	no data	4
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Arc Xe2 Graphics 64EU

no data

Peripherals

Specifications and connection of peripherals supported by Core Ultra 9 285 and Xeon w5-2555X.

PCIe version	5.0	5.0
PCI Express lanes	20	64

Pros & cons summary

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Physical cores	24	14
Threads	24	28
Power consumption (TDP)	125 Watt	252 Watt

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Should you still have questions on choice between Core Ultra 9 285 and Xeon w5-2555X, ask them in Comments section, and we shall answer.

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