Xeon Platinum 8454H vs Platinum 9221

Primary details

Comparing Xeon Platinum 9221 and Xeon Platinum 8454H processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	60
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Series	Intel Xeon Platinum	no data
Architecture codename	Cascade Lake-AP (2019)	Sapphire Rapids
Release date	2 April 2019 (5 years ago)	10 January 2023 (1 year ago)

Detailed specifications

Xeon Platinum 9221 and Xeon Platinum 8454H 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	32 (Dotriaconta-Core)	32 (Dotriaconta-Core)
Threads	64	64
Base clock speed	2.3 GHz	2.1 GHz
Boost clock speed	3.7 GHz	3.4 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	64K (per core)	80K (per core)
L2 cache	1 MB (per core)	2 MB (per core)
L3 cache	71.5 MB (shared)	82.5 MB
Chip lithography	14 nm	Intel 7 nm
Die size	no data	4x 477 mm2
Maximum core temperature	no data	71 °C
Maximum case temperature (TCase)	no data	71 °C
Number of transistors	8,000 million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	No	No

Compatibility

Information on Xeon Platinum 9221 and Xeon Platinum 8454H 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	8
Socket	Intel BGA5903	FCLGA4677
Power consumption (TDP)	250 Watt	270 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 9221 and Xeon Platinum 8454H. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Status	Discontinued	Launched

Security technologies

Xeon Platinum 9221 and Xeon Platinum 8454H technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 9221 and Xeon Platinum 8454H are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 9221 and Xeon Platinum 8454H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR5-4800, DDR5-4400
Maximum memory size	2 TiB	4 TB
Max memory channels	12	8
Maximum memory bandwidth	281.6 GB/s	no data
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 9221 and Xeon Platinum 8454H.

PCIe version	3.0	5.0
PCI Express lanes	no data	80

Pros & cons summary

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Recency	2 April 2019	10 January 2023
Power consumption (TDP)	250 Watt	270 Watt

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Should you still have questions on choice between Xeon Platinum 9221 and Xeon Platinum 8454H, ask them in Comments section, and we shall answer.

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