EPYC 9455 vs Xeon Platinum 8276M

Primary details

Comparing Xeon Platinum 8276M and EPYC 9455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the 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	Cascade Lake (2019−2020)	Turin (2024)
Release date	2 April 2019 (5 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	$11,722	$5,412

Detailed specifications

Xeon Platinum 8276M and EPYC 9455 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	28 (Octacosa-Core)	48 (Octatetraconta-Core)
Threads	56	96
Base clock speed	2.2 GHz	3.15 GHz
Boost clock speed	4 GHz	4.4 GHz
Multiplier	22	no data
L1 cache	1.75 MB	80 KB (per core)
L2 cache	28 MB	1 MB (per core)
L3 cache	38.5 MB	192 MB (shared)
Chip lithography	14 nm	4 nm
Die size	no data	6x 70.6 mm2
Maximum core temperature	89 °C	no data
Number of transistors	no data	49,890 million
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Xeon Platinum 8276M and EPYC 9455 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)	2
Socket	FCLGA3647	SP5
Power consumption (TDP)	165 Watt	300 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8276M and EPYC 9455. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon Platinum 8276M and EPYC 9455 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8276M and EPYC 9455 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8276M and EPYC 9455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR5
Maximum memory size	2 TB	no data
Max memory channels	6	no data
Maximum memory bandwidth	140.8 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8276M and EPYC 9455.

PCIe version	3.0	5.0
PCI Express lanes	48	128

Pros & cons summary

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Recency	2 April 2019	10 October 2024
Physical cores	28	48
Threads	56	96
Chip lithography	14 nm	4 nm
Power consumption (TDP)	165 Watt	300 Watt

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