Xeon Platinum 8321HC: specs and benchmarks

Summary

Intel started Xeon Platinum 8321HC sales 1 October 2020. This is desktop processor primarily aimed at professional systems.

Compatibility-wise, this is processor with a TDP of 88 Watt. It supports RDIMM memory.

Primary details

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

Place in the ranking	not rated
Place by popularity	not in top-100
Market segment	Server
Release date	1 October 2020 (4 years ago)

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	26 (Hexacosa-Core)
Threads	52
Base clock speed	1.4 GHz	of 4.7 GHz (FX-9590)
Boost clock speed	3 GHz	of 50 MHz (i486DX-50)
L3 cache	35.75 MB	of 1152 MB (EPYC 9684X)
64 bit support	-
Windows 11 compatibility	-

Compatibility

Information on Xeon Platinum 8321HC compatibility with other computer components and devices: 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.

Power consumption (TDP)

88 Watt

of 3100 ‑ 4500 (Ryzen 7 7435H)

Technologies and extensions

Technological capabilities and additional instructions supported by 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
AES-NI	+
Enhanced SpeedStep (EIST)	+
Speed Shift	+
Hyper-Threading Technology	+
TSX	+
Deep Learning Boost	+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

EDB

+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon Platinum 8321HC's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	RDIMM
Maximum memory size	1.12 TB	of 6 TiB (EPYC 9124)
Max memory channels	6	of 12 (Xeon Platinum 9221)

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5.0 (Core i9-12900K)
PCI Express lanes	48	of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon Platinum 8321HC. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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