Xeon Platinum 8174 vs EPYC 7742

Primary details

Comparing EPYC 7742 and Xeon Platinum 8174 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	45	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.33	no data
Market segment	Server	Server
Series	AMD EPYC	no data
Power efficiency	18.45	no data
Architecture codename	Zen 2 (2017−2020)	no data
Release date	7 August 2019 (5 years ago)	1 July 2017 (7 years ago)
Launch price (MSRP)	$6,950	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7742 and Xeon Platinum 8174 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	64 (Tetrahexaconta-Core)	24 (Tetracosa-Core)
Threads	128	48
Base clock speed	2.25 GHz	3.1 GHz
Boost clock speed	3.4 GHz	3.9 GHz
Multiplier	22.5	no data
L1 cache	4 MB	no data
L2 cache	32 MB	no data
L3 cache	256 MB (shared)	33 MB
Chip lithography	7 nm, 14 nm	14 nm
Die size	192 mm2	no data
Maximum core temperature	no data	65 °C
Number of transistors	4,800 million	no data
64 bit support	+	-
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7742 and Xeon Platinum 8174 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	2 (Multiprocessor)	no data
Socket	TR4	no data
Power consumption (TDP)	225 Watt	240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7742 and Xeon Platinum 8174. You'll probably need this information if you require some particular technology.

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

Security technologies

EPYC 7742 and Xeon Platinum 8174 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 EPYC 7742 and Xeon Platinum 8174 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 EPYC 7742 and Xeon Platinum 8174. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	DDR4-2666
Maximum memory size	4 TiB	768 GB
Max memory channels	8	6
Maximum memory bandwidth	204.763 GB/s	no data
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by EPYC 7742 and Xeon Platinum 8174.

PCIe version	no data	3.0
PCI Express lanes	no data	48

Pros & cons summary

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Recency	7 August 2019	1 July 2017
Physical cores	64	24
Threads	128	48
Chip lithography	7 nm	14 nm
Power consumption (TDP)	225 Watt	240 Watt

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