EPYC 9654 vs i5-655K

Primary details

Comparing Core i5-655K and EPYC 9654 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2284	6
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	1.29
Market segment	Desktop processor	Server
Series	no data	AMD EPYC
Power efficiency	1.65	19.91
Architecture codename	Clarkdale (2010−2011)	Genoa (2022−2023)
Release date	30 May 2010 (14 years ago)	10 November 2022 (2 years ago)
Launch price (MSRP)	no data	$11,805

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i5-655K and EPYC 9654 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	2 (Dual-core)	96
Threads	4	192
Base clock speed	3.2 GHz	2.4 GHz
Boost clock speed	3.46 GHz	3.7 GHz
Bus rate	2.5 GT/s	no data
Multiplier	no data	24
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	1 MB (per core)
L3 cache	4 MB (shared)	384 MB (shared)
Chip lithography	32 nm	5 nm, 6 nm
Die size	81 mm2	12x 72 mm2
Maximum core temperature	73 °C	no data
Number of transistors	382 million	78,840 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	-

Compatibility

Information on Core i5-655K and EPYC 9654 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	FCLGA1156	SP5
Power consumption (TDP)	73 Watt	360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-655K and EPYC 9654. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data
FDI	+	no data
Precision Boost 2	no data	+

Security technologies

Core i5-655K and EPYC 9654 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 Core i5-655K and EPYC 9654 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 i5-655K and EPYC 9654. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5-4800
Maximum memory size	16.38 GB	6 TiB
Max memory channels	2	no data
Maximum memory bandwidth	21 GB/s	460.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	no data
Clear Video HD	+	no data

Graphics interfaces

Available interfaces and connections of Core i5-655K and EPYC 9654 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-655K and EPYC 9654.

PCIe version	2.0	5.0
PCI Express lanes	16	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.

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Pros & cons summary

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Performance score	1.27	75.73
Recency	30 May 2010	10 November 2022
Physical cores	2	96
Threads	4	192
Chip lithography	32 nm	5 nm
Power consumption (TDP)	73 Watt	360 Watt

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Should you still have questions on choice between Core i5-655K and EPYC 9654, ask them in Comments section, and we shall answer.

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