EPYC 7663 vs Ryzen 7 5800X

Primary details

Comparing Ryzen 7 5800X and EPYC 7663 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	346	29
Place by popularity	99	not in top-100
Cost-effectiveness evaluation	25.27	4.80
Market segment	Desktop processor	Server
Series	AMD Ryzen 7	AMD EPYC
Architecture codename	Vermeer (Zen 3) (2020−2022)	Milan (2021−2023)
Release date	5 November 2020 (3 years ago)	15 March 2021 (3 years ago)
Launch price (MSRP)	$449	$6,366

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 7 5800X has 426% better value for money than EPYC 7663.

Detailed specifications

Ryzen 7 5800X and EPYC 7663 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	8 (Octa-Core)	56 (Hexapentaconta-Core)
Threads	16	112
Base clock speed	3.8 GHz	2 GHz
Boost clock speed	4.7 GHz	3.5 GHz
Multiplier	38	20
L1 cache	64K (per core)	64 KB (per core)
L2 cache	512K (per core)	512 KB (per core)
L3 cache	32 MB	256 MB (shared)
Chip lithography	7 nm, 12 nm	7 nm+
Die size	2 x 80.7 sq. mm; I/O = 125 mm2	8x 81 mm2
Maximum core temperature	90 °C	no data
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	no data	33,200 million
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 7 5800X and EPYC 7663 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	AM4	SP3
Power consumption (TDP)	105 Watt	240 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 5800X and EPYC 7663. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA	no data
AES-NI	+	+
AVX	+	+
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 5800X and EPYC 7663 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 5800X and EPYC 7663. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4-3200
Maximum memory size	128 GB	4 TiB
Max memory channels	2	no data
Maximum memory bandwidth	51.196 GB/s	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

-

N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 5800X and EPYC 7663.

PCIe version	4.0	4.0
PCI Express lanes	no data	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.

Pros & cons summary

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Performance score	18.06	53.23
Recency	5 November 2020	15 March 2021
Physical cores	8	56
Threads	16	112
Power consumption (TDP)	105 Watt	240 Watt

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Should you still have questions on choice between Ryzen 7 5800X and EPYC 7663, ask them in Comments section, and we shall answer.

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