EPYC 9555 vs i7-4820K

Primary details

Comparing Core i7-4820K and EPYC 9555 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1406	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.53	no data
Market segment	Desktop processor	Server
Power efficiency	2.95	no data
Architecture codename	Ivy Bridge-E (2013)	Turin (2024)
Release date	1 September 2013 (11 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	$399	$9,826

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-4820K and EPYC 9555 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	4 (Quad-Core)	64 (Tetrahexaconta-Core)
Threads	8	128
Base clock speed	3.7 GHz	3.2 GHz
Boost clock speed	3.9 GHz	4.4 GHz
Bus rate	5 GT/s	no data
L1 cache	64 KB (per core)	80 KB (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	10 MB (shared)	256 MB (shared)
Chip lithography	22 nm	4 nm
Die size	257 mm2	8x 70.6 mm2
Maximum core temperature	67 °C	no data
Number of transistors	1,860 million	66,520 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	-

Compatibility

Information on Core i7-4820K and EPYC 9555 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
Socket	FCLGA2011	SP5
Power consumption (TDP)	130 Watt	360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-4820K and EPYC 9555. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX	no data
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Smart Response	+	no data
Demand Based Switching	-	no data
Precision Boost 2	no data	+

Security technologies

Core i7-4820K and EPYC 9555 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Identity Protection	+	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-4820K and EPYC 9555 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 Core i7-4820K and EPYC 9555. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5
Maximum memory size	64 GB	no data
Max memory channels	4	no data
Maximum memory bandwidth	59.7 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Core i7-4820K and EPYC 9555.

PCIe version	3.0	5.0
PCI Express lanes	40	128

Pros & cons summary

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Recency	1 September 2013	10 October 2024
Physical cores	4	64
Threads	8	128
Chip lithography	22 nm	4 nm
Power consumption (TDP)	130 Watt	360 Watt

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Should you still have questions on choice between Core i7-4820K and EPYC 9555, ask them in Comments section, and we shall answer.

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