Xeon Phi 7250 vs EPYC 7281

Primary details

Comparing EPYC 7281 and Xeon Phi 7250 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	530	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	5.21	no data
Market segment	Server	Server
Series	AMD EPYC	no data
Architecture codename	Naples (2017−2018)	Knights Landing (2016)
Release date	20 June 2017 (7 years ago)	20 June 2016 (8 years ago)
Launch price (MSRP)	$650	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7281 and Xeon Phi 7250 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)	68 (Octahexaconta-Core)
Threads	32	272
Base clock speed	2.1 GHz	1.4 GHz
Boost clock speed	2.1 GHz	1.6 GHz
Multiplier	21	no data
L1 cache	1.5 MB	32 KB (per core)
L2 cache	8 MB	512 KB (per core)
L3 cache	32 MB (shared)	0 KB (shared)
Chip lithography	14 nm	14 nm
Die size	213 mm2	no data
Number of transistors	19200 Million	8,000 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7281 and Xeon Phi 7250 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	3647
Power consumption (TDP)	155 W, 170 Watt	215 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7281 and Xeon Phi 7250. You'll probably need this information if you require some particular technology.

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

Security technologies

EPYC 7281 and Xeon Phi 7250 technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7281 and Xeon Phi 7250 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 7281 and Xeon Phi 7250. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR4
Maximum memory size	2 TiB	no data
Max memory channels	8	no data
Maximum memory bandwidth	170.671 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by EPYC 7281 and Xeon Phi 7250.

PCIe version	3.0	no data
PCI Express lanes	128	no data

Pros & cons summary

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Recency	20 June 2017	20 June 2016
Physical cores	16	68
Threads	32	272
Power consumption (TDP)	155 Watt	215 Watt

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Should you still have questions on choice between EPYC 7281 and Xeon Phi 7250, ask them in Comments section, and we shall answer.

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