Ultra 7 265K vs Xeon Platinum 8558

Primary details

Comparing Xeon Platinum 8558 and Core Ultra 7 265K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	86
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	89.71
Market segment	Server	Desktop processor
Power efficiency	no data	28.19
Architecture codename	Emerald Rapids (2023)	Arrow Lake-S (2024−2025)
Release date	14 December 2023 (less than a year ago)	24 October 2024 (less than a year ago)
Launch price (MSRP)	$4,650	$394

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Platinum 8558 and Core Ultra 7 265K 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	48 (Octatetraconta-Core)	20 (Icosa-Core)
Threads	96	20
Base clock speed	2.1 GHz	3.9 GHz
Boost clock speed	4 GHz	5.5 GHz
L1 cache	80 KB (per core)	112 KB (per core)
L2 cache	2 MB (per core)	3 MB (per core)
L3 cache	260 MB (shared)	30 MB (shared)
Chip lithography	Intel 7 nm	3 nm
Die size	2x 763 mm2	243 mm2
Maximum case temperature (TCase)	78 °C	no data
Number of transistors	no data	17,800 million
64 bit support	+	+
Unlocked multiplier	-	+

Compatibility

Information on Xeon Platinum 8558 and Core Ultra 7 265K 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	2	1
Socket	FCLGA4677	1851
Power consumption (TDP)	330 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8558 and Core Ultra 7 265K. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon Platinum 8558 and Core Ultra 7 265K technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8558 and Core Ultra 7 265K are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8558 and Core Ultra 7 265K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5 @ 5200 MT/s (1 DPC)	DDR5 Depends on motherboard
Maximum memory size	4 TB	no data
Max memory channels	8	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

Arc Xe2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8558 and Core Ultra 7 265K.

PCIe version	5.0	5.0
PCI Express lanes	80	20

Pros & cons summary

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Recency	14 December 2023	24 October 2024
Physical cores	48	20
Threads	96	20
Power consumption (TDP)	330 Watt	125 Watt

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Should you still have questions on choice between Xeon Platinum 8558 and Core Ultra 7 265K, ask them in Comments section, and we shall answer.

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