Xeon Platinum 8321HC vs Platinum 8158

Primary details

Comparing Xeon Platinum 8158 and Xeon Platinum 8321HC processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Series	Intel Xeon Platinum	no data
Architecture codename	Skylake (server) (2017−2019)	no data
Release date	25 April 2017 (7 years ago)	1 October 2020 (3 years ago)
Launch price (MSRP)	$7,007	no data

Detailed specifications

Xeon Platinum 8158 and Xeon Platinum 8321HC 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	12 (Dodeca-Core)	26 (Hexacosa-Core)
Threads	24	52
Base clock speed	3 GHz	1.4 GHz
Boost clock speed	3.7 GHz	3 GHz
Multiplier	30	no data
L1 cache	768 KB	no data
L2 cache	12 MB	no data
L3 cache	24.75 MB	35.75 MB
Chip lithography	14 nm	no data
Maximum core temperature	85 °C	no data
64 bit support	+	-
Windows 11 compatibility	+	-

Compatibility

Information on Xeon Platinum 8158 and Xeon Platinum 8321HC 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 (Multiprocessor)	no data
Socket	FCLGA3647	no data
Power consumption (TDP)	150 Watt	88 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8158 and Xeon Platinum 8321HC. 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® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	+
TSX	+	+
Turbo Boost Max 3.0	-	no data
Status	Discontinued	Announced
Deep Learning Boost	-	+

Security technologies

Xeon Platinum 8158 and Xeon Platinum 8321HC technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8158 and Xeon Platinum 8321HC are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8158 and Xeon Platinum 8321HC. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	RDIMM
Maximum memory size	768 GB	1.12 TB
Max memory channels	6	6
Maximum memory bandwidth	128.001 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8158 and Xeon Platinum 8321HC.

PCIe version	3.0	3.0
PCI Express lanes	48	48

Pros & cons summary

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Recency	25 April 2017	1 October 2020
Physical cores	12	26
Threads	24	52
Power consumption (TDP)	150 Watt	88 Watt

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Should you still have questions on choice between Xeon Platinum 8158 and Xeon Platinum 8321HC, ask them in Comments section, and we shall answer.

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