Ryzen 9 9950X vs Xeon Platinum 9221

Primary details

Comparing Xeon Platinum 9221 and Ryzen 9 9950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	56
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	64.16
Market segment	Server	Desktop processor
Series	Intel Xeon Platinum	no data
Power efficiency	no data	23.38
Architecture codename	Cascade Lake-AP (2019)	Granite Ridge (2024)
Release date	2 April 2019 (5 years ago)	15 August 2024 (less than a year ago)
Launch price (MSRP)	no data	$649

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Platinum 9221 and Ryzen 9 9950X 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)	16 (Hexadeca-Core)
Threads	64	32
Base clock speed	2.3 GHz	4.3 GHz
Boost clock speed	3.7 GHz	5.7 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	21	no data
L1 cache	2 MB	80 KB (per core)
L2 cache	32 MB	1 MB (per core)
L3 cache	71.5 MB (shared)	64 MB (shared)
Chip lithography	14 nm	4 nm
Die size	no data	2x 70.6 mm2
Number of transistors	8,000 million	16,630 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	-	+

Compatibility

Information on Xeon Platinum 9221 and Ryzen 9 9950X 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	8	1
Socket	Intel BGA5903	AM5
Power consumption (TDP)	250 Watt	170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 9221 and Ryzen 9 9950X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512	no data
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Status	Discontinued	no data
Precision Boost 2	no data	+

Security technologies

Xeon Platinum 9221 and Ryzen 9 9950X technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 9221 and Ryzen 9 9950X 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 Xeon Platinum 9221 and Ryzen 9 9950X. Depending on the motherboard, higher memory frequencies may be supported.

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

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon Graphics

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 9221 and Ryzen 9 9950X.

PCIe version	3.0	5.0
PCI Express lanes	no data	24

Pros & cons summary

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Recency	2 April 2019	15 August 2024
Physical cores	32	16
Threads	64	32
Chip lithography	14 nm	4 nm
Power consumption (TDP)	250 Watt	170 Watt

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