i7-990X Extreme Edition vs EPYC 7401

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	173	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.27	no data
Market segment	Server	Desktop processor
Series	AMD EPYC	Intel Core i7EE
Power efficiency	7.84	no data
Designer	AMD	Intel
Architecture codename	Naples (2017−2018)	Westmere (2010−2011)
Release date	20 June 2017 (8 years ago)	13 February 2011 (15 years ago)
Launch price (MSRP)	$1,850	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Performance to price scatter graph

Detailed specifications

EPYC 7401 and Core i7-990X Extreme Edition 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	24 (Tetracosa-Core)	6 (Hexa-Core)
Threads	48	12
Base clock speed	2 GHz	no data
Boost clock speed	2 GHz	3.46 GHz
Bus type	no data	QPI
Bus rate	no data	6.4 GT/s
Multiplier	20	26
L1 cache	2.25 MB	no data
L2 cache	12 MB	1.5 MB
L3 cache	64 MB (shared)	12 MB
Chip lithography	14 nm	32 nm
Die size	213 mm2	239 mm2
Number of transistors	19200 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on EPYC 7401 and Core i7-990X Extreme Edition 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)	1 (Uniprocessor)
Socket	TR4	no data
Power consumption (TDP)	155 W, 170 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7401 and Core i7-990X Extreme Edition. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	-
Enhanced SpeedStep (EIST)	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7401 and Core i7-990X Extreme Edition are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7401 and Core i7-990X Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Eight-channel	no data
Maximum memory size	2 TiB	24 GB
Max memory channels	8	no data
Maximum memory bandwidth	170.671 GB/s	no data
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by EPYC 7401 and Core i7-990X Extreme Edition.

PCIe version	3.0	no data
PCI Express lanes	128	no data

Pros & cons summary

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Recency	20 June 2017	13 February 2011
Physical cores	24	6
Threads	48	12
Chip lithography	14 nm	32 nm
Power consumption (TDP)	155 Watt	130 Watt