EPYC 7742 vs Xeon Platinum 8276

Primary details

Comparing Xeon Platinum 8276 and EPYC 7742 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	39
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	25.82
Market segment	Server	Server
Series	Intel Xeon Platinum	AMD EPYC
Architecture codename	Cascade Lake-SP (2019)	Zen 2 (2019−2020)
Release date	11 December 2018 (5 years ago)	7 August 2019 (4 years ago)
Launch price (MSRP)	$8,719	$6,950
Current price	$12862 (1.5x MSRP)	$1656 (0.2x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Platinum 8276 and EPYC 7742 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)	64 (Tetrahexaconta-Core)
Threads	56	128
Base clock speed	2.2 GHz	2.25 GHz
Boost clock speed	4 GHz	3.4 GHz
L1 cache	64K (per core)	96K (per core)
L2 cache	1 MB (per core)	512K (per core)
L3 cache	38.5 MB (shared)	256 MB (shared)
Chip lithography	14 nm	7 nm, 14 nm
Die size	no data	192 mm2
Maximum core temperature	89 °C	no data
Number of transistors	8,000 million	4,800 million
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon Platinum 8276 and EPYC 7742 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 (Multiprocessor)
Socket	FCLGA3647	TR4
Power consumption (TDP)	165 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8276 and EPYC 7742. 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	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	+	no data
Turbo Boost Max 3.0	-	no data
Status	Launched	no data

Security technologies

Xeon Platinum 8276 and EPYC 7742 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 8276 and EPYC 7742 are enumerated here.

AMD-V	no data	+
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 8276 and EPYC 7742. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR4 Eight-channel
Maximum memory size	1 TB	4 TiB
Max memory channels	6	8
Maximum memory bandwidth	140.8 GB/s	204.763 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8276 and EPYC 7742.

PCIe version	3.0	no data
PCI Express lanes	48	no data

Pros & cons summary

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Recency	11 December 2018	7 August 2019
Physical cores	28	64
Threads	56	128
Cost	$8719	$6950
Chip lithography	14 nm	7 nm
Power consumption (TDP)	165 Watt	225 Watt

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