Ryzen 9 5950X vs Xeon Platinum 9221

Primary details

Comparing Xeon Platinum 9221 and Ryzen 9 5950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	159
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	27.74
Market segment	Server	Desktop processor
Series	Intel Xeon Platinum	AMD Ryzen 9
Power efficiency	no data	25.87
Architecture codename	Cascade Lake-AP (2019)	Vermeer (Zen 3) (2020−2022)
Release date	2 April 2019 (5 years ago)	5 November 2020 (4 years ago)
Launch price (MSRP)	no data	$799

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Platinum 9221 and Ryzen 9 5950X 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	3.4 GHz
Boost clock speed	3.7 GHz	4.9 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	21	34
L1 cache	64K (per core)	64K (per core)
L2 cache	1 MB (per core)	512K (per core)
L3 cache	71.5 MB (shared)	64 MB
Chip lithography	14 nm	7 nm, 12 nm
Die size	no data	CPU cores: 2x 80.7 sq. mm., I/O: 125 mm2
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	8,000 million	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	-	+

Compatibility

Information on Xeon Platinum 9221 and Ryzen 9 5950X 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	AM4
Power consumption (TDP)	250 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 9221 and Ryzen 9 5950X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512	MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA
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	+	-
Precision Boost 2	no data	+

Security technologies

Xeon Platinum 9221 and Ryzen 9 5950X 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 5950X 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 5950X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR4
Maximum memory size	2 TiB	128 GB
Max memory channels	12	2
Maximum memory bandwidth	281.6 GB/s	51.196 GB/s
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 9221 and Ryzen 9 5950X.

PCIe version

3.0

4.0

Pros & cons summary

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Recency	2 April 2019	5 November 2020
Physical cores	32	16
Threads	64	32
Chip lithography	14 nm	7 nm
Power consumption (TDP)	250 Watt	105 Watt

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