Ryzen 7 5800 vs Ryzen 9 3900XT

Primary details

Comparing Ryzen 9 3900XT and Ryzen 7 5800 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	266	405
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	25.14	no data
Market segment	Desktop processor	Desktop processor
Series	AMD Ryzen 9	AMD Ryzen 7
Power efficiency	18.54	23.60
Architecture codename	Matisse 2 (2020)	Vermeer (2020−2024)
Release date	16 June 2020 (4 years ago)	5 November 2020 (4 years ago)
Launch price (MSRP)	$499	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 9 3900XT and Ryzen 7 5800 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	12 (Dodeca-Core)	8 (Octa-Core)
Threads	24	16
Base clock speed	3.8 GHz	3.4 GHz
Boost clock speed	4.7 GHz	4.6 GHz
Multiplier	no data	34
L1 cache	768 KB	512 KB
L2 cache	6 MB	4 MB
L3 cache	64 MB	32 MB
Chip lithography	7 nm, 12 nm	7 nm, 12 nm
Die size	74 mm2	81 mm2
Maximum case temperature (TCase)	95 °C	95 °C
Number of transistors	3,800 million	4,150 million
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	+

Compatibility

Information on Ryzen 9 3900XT and Ryzen 7 5800 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	1
Socket	AM4	AM4
Power consumption (TDP)	105 Watt	65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900XT and Ryzen 7 5800. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900XT and Ryzen 7 5800 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900XT and Ryzen 7 5800. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR4-3200
Maximum memory size	128 GB	128 GB
Max memory channels	2	no data
Maximum memory bandwidth	51.196 GB/s	51.196 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

-

-

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900XT and Ryzen 7 5800.

PCIe version

4.0

4.0

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	21.35	16.82
Recency	16 June 2020	5 November 2020
Physical cores	12	8
Threads	24	16
Power consumption (TDP)	105 Watt	65 Watt

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Should you still have questions on choice between Ryzen 9 3900XT and Ryzen 7 5800, ask them in Comments section, and we shall answer.

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