Xeon E5-2678 v3 vs Ryzen 9 3900X

Primary details

Comparing Ryzen 9 3900X and Xeon E5-2678 v3 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	269	820
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	20.47	no data
Market segment	Desktop processor	Server
Series	AMD Ryzen 9	Xeon
Power efficiency	18.50	7.31
Architecture codename	Matisse (Zen 2) (2019−2020)	Haswell (2013−2015)
Release date	7 July 2019 (5 years ago)	2015 (9 years ago)
Launch price (MSRP)	$499	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 9 3900X and Xeon E5-2678 v3 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)	12 (Dodeca-Core)
Threads	24	24
Base clock speed	3.8 GHz	2.5 GHz
Boost clock speed	4.6 GHz	3.3 GHz
L1 cache	768 KB	384 KB
L2 cache	6 MB	3072 KB
L3 cache	64 MB	30 MB
Chip lithography	7 nm, 12 nm	22 nm
Die size	no data	356 mm2
Maximum core temperature	95 °C	no data
Maximum case temperature (TCase)	no data	84 °C
Number of transistors	19,200 million	5,560 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 9 3900X and Xeon E5-2678 v3 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)	2
Socket	AM4	LGA2011-3
Power consumption (TDP)	105 Watt	120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 3900X and Xeon E5-2678 v3. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	no data	+
TSX	-	+
Precision Boost 2	+	no data

Security technologies

Ryzen 9 3900X and Xeon E5-2678 v3 technologies aimed at improving security, for example, by protecting against hacks.

TXT

no data

+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 3900X and Xeon E5-2678 v3 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900X and Xeon E5-2678 v3. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Dual-channel	DDR3, DDR4
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	51.196 GB/s	no data

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 3900X and Xeon E5-2678 v3.

PCIe version	no data	3.0
PCI Express lanes	no data	40

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	20.61	9.31
Chip lithography	7 nm	22 nm
Power consumption (TDP)	105 Watt	120 Watt

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Should you still have questions on choice between Ryzen 9 3900X and Xeon E5-2678 v3, ask them in Comments section, and we shall answer.

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