Ultra 7 265 vs EPYC 7251

Primary details

Comparing EPYC 7251 and Core Ultra 7 265 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	796	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.14	no data
Market segment	Server	Desktop processor
Series	AMD EPYC	no data
Power efficiency	7.42	no data
Architecture codename	Naples (2017−2018)	Arrow Lake-S (2024−2025)
Release date	29 June 2017 (7 years ago)	January 2025
Launch price (MSRP)	$574	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7251 and Core Ultra 7 265 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)	20 (Icosa-Core)
Threads	16	20
Base clock speed	2.1 GHz	2.4 GHz
Boost clock speed	2.9 GHz	5.3 GHz
Multiplier	21	no data
L1 cache	96K (per core)	112 KB (per core)
L2 cache	512K (per core)	3 MB (per core)
L3 cache	32 MB (shared)	33 MB (shared)
Chip lithography	14 nm	3 nm
Die size	192 mm2	no data
Number of transistors	4,800 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7251 and Core Ultra 7 265 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 (Multiprocessor)	1
Socket	TR4	1851
Power consumption (TDP)	120 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7251 and Core Ultra 7 265. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
TSX	-	+

Security technologies

EPYC 7251 and Core Ultra 7 265 technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7251 and Core Ultra 7 265 are enumerated here.

AMD-V	+	-
VT-d	no data	+
VT-x	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7251 and Core Ultra 7 265. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR5
Maximum memory size	2 TiB	no data
Max memory channels	8	no data
Maximum memory bandwidth	153.652 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

Arc Xe2 Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by EPYC 7251 and Core Ultra 7 265.

PCIe version	3.0	5.0
PCI Express lanes	128	20

Pros & cons summary

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Physical cores	8	20
Threads	16	20
Chip lithography	14 nm	3 nm
Power consumption (TDP)	120 Watt	65 Watt

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Should you still have questions on choice between EPYC 7251 and Core Ultra 7 265, ask them in Comments section, and we shall answer.

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