Ryzen 7 5800X vs Xeon E5-2643 v4

Primary details

Comparing Xeon E5-2643 v4 and Ryzen 7 5800X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	997	355
Place by popularity	not in top-100	60
Cost-effectiveness evaluation	1.29	23.24
Market segment	Server	Desktop processor
Series	Intel Xeon E5	AMD Ryzen 7
Power efficiency	4.91	15.80
Architecture codename	Broadwell (2015−2019)	Vermeer (Zen 3) (2020−2022)
Release date	20 June 2016 (8 years ago)	8 October 2020 (4 years ago)
Launch price (MSRP)	$1,552	$449

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 7 5800X has 1702% better value for money than Xeon E5-2643 v4.

Detailed specifications

Xeon E5-2643 v4 and Ryzen 7 5800X 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	6 (Hexa-Core)	8 (Octa-Core)
Threads	12	16
Base clock speed	3.4 GHz	3.8 GHz
Boost clock speed	3.7 GHz	4.7 GHz
Bus type	QPI	no data
Bus rate	2 × 9.6 GT/s	no data
Multiplier	34	38
L1 cache	no data	512 KB
L2 cache	1.5 MB	4 MB
L3 cache	20 MB	32 MB
Chip lithography	14 nm	7 nm, 12 nm
Die size	246.24 mm2	2 x 80.7 sq. mm; I/O = 125 mm2
Maximum core temperature	75 °C	90 °C
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	3200 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Xeon E5-2643 v4 and Ryzen 7 5800X 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	2 (Multiprocessor)	1
Socket	FCLGA2011	AM4
Power consumption (TDP)	135 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2643 v4 and Ryzen 7 5800X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Precision Boost 2	no data	+

Security technologies

Xeon E5-2643 v4 and Ryzen 7 5800X 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 Xeon E5-2643 v4 and Ryzen 7 5800X are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2643 v4 and Ryzen 7 5800X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400	DDR4
Maximum memory size	1.5 TB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	76.8 GB/s	51.196 GB/s
ECC memory support	+	-

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2643 v4 and Ryzen 7 5800X.

PCIe version	3.0	4.0
PCI Express lanes	40	no data

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	7.14	17.86
Recency	20 June 2016	8 October 2020
Physical cores	6	8
Threads	12	16
Chip lithography	14 nm	7 nm
Power consumption (TDP)	135 Watt	105 Watt

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Should you still have questions on choice between Xeon E5-2643 v4 and Ryzen 7 5800X, ask them in Comments section, and we shall answer.

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