Xeon E-2478 vs Ryzen 9 3900X

Primary details

Comparing Ryzen 9 3900X and Xeon E-2478 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	238	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	33.36	no data
Market segment	Desktop processor	Server
Series	AMD Ryzen 9	no data
Architecture codename	Matisse (Zen 2) (2019−2020)	Raptor Lake-S
Release date	7 July 2019 (4 years ago)	14 December 2023 (less than a year ago)
Launch price (MSRP)	$499	no data
Current price	$403 (0.8x MSRP)	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 9 3900X and Xeon E-2478 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	2.8 GHz
Boost clock speed	4.6 GHz	5.2 GHz
L1 cache	96K (per core)	80 KB (per core)
L2 cache	512K (per core)	2 MB (per core)
L3 cache	64 MB	24 MB (shared)
Chip lithography	7 nm	Intel 7 nm
Die size	no data	257 mm2
Maximum core temperature	95 °C	100 °C
Number of transistors	19,200 million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	Yes	No

Compatibility

Information on Ryzen 9 3900X and Xeon E-2478 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 (Uniprocessor)	1
Socket	AM4	FCLGA1700
Power consumption (TDP)	125 Watt	80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900X and Xeon E-2478. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	no data	+
Turbo Boost Technology	no data	2
Hyper-Threading Technology	no data	+
TSX	no data	-
Idle States	no data	+
Thermal Monitoring	no data	+
Turbo Boost Max 3.0	no data	+
Status	no data	Launched

Security technologies

Ryzen 9 3900X and Xeon E-2478 technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	no data	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900X and Xeon E-2478 are enumerated here.

AMD-V	+	no data
VT-d	no data	+
VT-x	no data	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900X and Xeon E-2478. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Dual-channel	DDR5-4800
Maximum memory size	128 GB	128 GB
Max memory channels	2	2
Maximum memory bandwidth	51.196 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

-

N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900X and Xeon E-2478.

PCIe version	no data	5
PCI Express lanes	no data	20

Pros & cons summary

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Recency	7 July 2019	14 December 2023
Physical cores	12	8
Threads	24	16
Power consumption (TDP)	125 Watt	80 Watt

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Should you still have questions on choice between Ryzen 9 3900X and Xeon E-2478, ask them in Comments section, and we shall answer.

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