Xeon Platinum 9221 vs Gold 6143

Primary details

Comparing Xeon Gold 6143 and Xeon Platinum 9221 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	436	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Series	no data	Intel Xeon Platinum
Power efficiency	7.20	no data
Architecture codename	no data	Cascade Lake-AP (2019)
Release date	1 July 2017 (7 years ago)	2 April 2019 (5 years ago)

Detailed specifications

Xeon Gold 6143 and Xeon Platinum 9221 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)	32 (Dotriaconta-Core)
Threads	32	64
Base clock speed	2.8 GHz	2.3 GHz
Boost clock speed	4 GHz	3.7 GHz
Bus type	no data	DMI 3.0
Bus rate	no data	4 × 8 GT/s
Multiplier	no data	21
L1 cache	no data	2 MB
L2 cache	no data	32 MB
L3 cache	22 MB	71.5 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	74 °C	no data
Number of transistors	no data	8,000 million
64 bit support	-	+
Windows 11 compatibility	-	+

Compatibility

Information on Xeon Gold 6143 and Xeon Platinum 9221 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	no data	8
Socket	FCLGA3647	Intel BGA5903
Power consumption (TDP)	205 Watt	250 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 6143 and Xeon Platinum 9221. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® AVX-512
AES-NI	+	+
AVX	-	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Turbo Boost Max 3.0	-	no data

Security technologies

Xeon Gold 6143 and Xeon Platinum 9221 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Gold 6143 and Xeon Platinum 9221 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6143 and Xeon Platinum 9221. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-2933
Maximum memory size	768 GB	2 TiB
Max memory channels	6	12
Maximum memory bandwidth	no data	281.6 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Gold 6143 and Xeon Platinum 9221.

PCIe version	3.0	3.0
PCI Express lanes	48	no data

Pros & cons summary

---

Recency	1 July 2017	2 April 2019
Physical cores	16	32
Threads	32	64
Power consumption (TDP)	205 Watt	250 Watt

---

Should you still have questions on choice between Xeon Gold 6143 and Xeon Platinum 9221, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---