EPYC 7371 vs Core i9-9900X

Primary details

Comparing Core i9-9900X and EPYC 7371 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	487	254
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	13.74	4.04
Market segment	Desktop processor	Server
Series	Intel Core i9	AMD EPYC
Architecture codename	Skylake (server) (2017−2019)	Naples (2017−2018)
Release date	19 October 2018 (5 years ago)	16 November 2018 (5 years ago)
Launch price (MSRP)	$989	$1,550
Current price	$468 (0.5x MSRP)	$2738 (1.8x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-9900X has 240% better value for money than EPYC 7371.

Detailed specifications

Core i9-9900X and EPYC 7371 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	10 (Deca-Core)	16 (Hexadeca-Core)
Threads	20	32
Base clock speed	3.5 GHz	3.1 GHz
Boost clock speed	4.5 GHz	3.8 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	64 KB (per core)	96K (per core)
L2 cache	1 MB (per core)	512K (per core)
L3 cache	19.25 MB (shared)	64 MB (shared)
Chip lithography	14 nm	14 nm
Die size	no data	192 mm2
Maximum core temperature	92 °C	no data
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	4,800 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	Yes	Yes

Compatibility

Information on Core i9-9900X and EPYC 7371 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	1	2 (Multiprocessor)
Socket	FCLGA2066	TR4
Power consumption (TDP)	165 Watt	170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900X and EPYC 7371. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	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	Discontinued	no data

Security technologies

Core i9-9900X and EPYC 7371 technologies aimed at improving security, for example, by protecting against hacks.

EDB

+

no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900X and EPYC 7371 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900X and EPYC 7371. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4 Eight-channel
Maximum memory size	128 GB	2 TiB
Max memory channels	4	8
Maximum memory bandwidth	85 GB/s	170.671 GB/s
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

no data

Peripherals

Specifications and connection of peripherals supported by Core i9-9900X and EPYC 7371.

PCIe version	3.0	3.0
PCI Express lanes	44	128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

EPYC 7371 outperforms Core i9-9900X by 43% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	14.10	20.10
Physical cores	10	16
Threads	20	32
Cost	$989	$1550
Power consumption (TDP)	165 Watt	170 Watt

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Should you still have questions on choice between Core i9-9900X and EPYC 7371, ask them in Comments section, and we shall answer.

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