Xeon Platinum 8356H: specs and benchmarks

Summary

Intel started Xeon Platinum 8356H sales 6 April 2021. This is a Cooper Lake-SP architecture desktop processor primarily aimed at professional systems. It has 8 cores and 16 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 4400 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA4189 processor with a TDP of 190 Watt. It supports DDR4 RDIMM memory.

Primary details

Xeon Platinum 8356H 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
Architecture codename	Cooper Lake-SP (2021)
Release date	6 April 2021 (3 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	8 (Octa-Core)
Threads	16
Base clock speed	3.9 GHz	of 4.7 GHz (Ryzen 9 7900X)
Boost clock speed	4.4 GHz	of 6.2 GHz (Core i9-14900KS)
L1 cache	64K (per core)	of 80 KB (EPYC 9965)
L2 cache	1 MB (per core)	of 2 MB (Xeon 6980P)
L3 cache	35.75 MB (shared)	of 1152 MB (EPYC 9684X)
Chip lithography	14 nm	of 3 nm (Core Ultra 9 285K)
64 bit support	+
Windows 11 compatibility	-

Compatibility

Information on Xeon Platinum 8356H 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.

Number of CPUs in a configuration	8
Socket	FCLGA4189
Power consumption (TDP)	190 Watt	of 3100 ‑ 4500 (Ryzen 7 7435H)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon Platinum 8356H. 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	+
AVX	+
vPro	+
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.

TXT	+
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 8356H's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4 RDIMM
Maximum memory size	1.12 TB	of 6 TiB (EPYC 9654)
Max memory channels	6	of 12 (Xeon Platinum 9221)
ECC memory support	+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5.0 (EPYC 9655P)
PCI Express lanes	48	of 128 (EPYC 9655P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon Platinum 8356H. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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