Xeon Platinum 8276M: specs and benchmarks

Summary

Intel started Xeon Platinum 8276M sales 2 April 2019 at a recommended price of $11,722. This is a Cascade Lake architecture desktop processor primarily aimed at professional systems. It has 28 cores and 56 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 4000 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA3647 processor with a TDP of 165 Watt. It supports DDR4-2933 memory.

Primary details

Xeon Platinum 8276M 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
Series	Intel Xeon Platinum
Architecture codename	Cascade Lake (2019−2020)
Release date	2 April 2019 (5 years ago)
Launch price (MSRP)	$11,722	of 17,906 (Xeon Platinum 8280L)

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	28 (Octacosa-Core)
Threads	56
Base clock speed	2.2 GHz	of 4.7 GHz (Ryzen 9 7900X)
Boost clock speed	4 GHz	of 6.2 GHz (Core i9-14900KS)
Multiplier	22	of 42 (Core i7-7700K)
L1 cache	1.75 MB	of 80 KB (EPYC 9965)
L2 cache	28 MB	of 2 MB (Xeon 6980P)
L3 cache	38.5 MB	of 1152 MB (EPYC 9684X)
Chip lithography	14 nm	of 3 nm (Core Ultra 9 285K)
Maximum core temperature	89 °C	of 110 °C (Core Ultra 9 185H)
64 bit support	+
Windows 11 compatibility	+

Compatibility

Information on Xeon Platinum 8276M 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 (Multiprocessor)
Socket	FCLGA3647
Power consumption (TDP)	165 Watt	of 3100 ‑ 4500 (Ryzen 7 7435H)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon Platinum 8276M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512
AES-NI	+
AVX	+
vPro	+
Enhanced SpeedStep (EIST)	+
Speed Shift	+
Turbo Boost Technology	2.0
Hyper-Threading Technology	+
TSX	+
Turbo Boost Max 3.0	-
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 8276M's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4-2933
Maximum memory size	2 TB	of 6 TiB (EPYC 9654)
Max memory channels	6	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	140.8 GB/s	of 460.8 GB/s (EPYC 9654)
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 8276M. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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