EPYC 9634 vs Ryzen 9 3900XT

Primary details

Comparing Ryzen 9 3900XT and EPYC 9634 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	260	9
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	26.60	2.07
Market segment	Desktop processor	Server
Series	AMD Ryzen 9	AMD EPYC
Power efficiency	18.55	22.18
Architecture codename	Matisse 2 (2020)	Genoa (2022−2023)
Release date	16 June 2020 (4 years ago)	10 November 2022 (1 year ago)
Launch price (MSRP)	$499	$10,304

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 3900XT has 1185% better value for money than EPYC 9634.

Detailed specifications

Ryzen 9 3900XT and EPYC 9634 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)	84
Threads	24	168
Base clock speed	3.8 GHz	2.25 GHz
Boost clock speed	4.7 GHz	2.25 GHz
Multiplier	no data	22.5
L1 cache	768 KB	5376 KB
L2 cache	6 MB	84 MB
L3 cache	64 MB	384 MB (shared)
Chip lithography	7 nm, 12 nm	5 nm, 6 nm
Die size	74 mm2	12x 72 mm2
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	3,800 million	78,840 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 9 3900XT and EPYC 9634 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	SP5
Power consumption (TDP)	105 Watt	290 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900XT and EPYC 9634. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Precision Boost 2	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900XT and EPYC 9634 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900XT and EPYC 9634. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR5-4800
Maximum memory size	128 GB	6 TiB
Max memory channels	2	no data
Maximum memory bandwidth	51.196 GB/s	460.8 GB/s
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900XT and EPYC 9634.

PCIe version	4.0	5.0
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	21.40	70.69
Recency	16 June 2020	10 November 2022
Physical cores	12	84
Threads	24	168
Chip lithography	7 nm	5 nm
Power consumption (TDP)	105 Watt	290 Watt

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Should you still have questions on choice between Ryzen 9 3900XT and EPYC 9634, ask them in Comments section, and we shall answer.

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