Ryzen 9 9900X vs Xeon E5-4660 v4

Primary details

Comparing Xeon E5-4660 v4 and Ryzen 9 9900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	795	109
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.83	66.82
Market segment	Server	Desktop processor
Series	Intel Xeon E5	no data
Power efficiency	7.63	27.21
Architecture codename	Broadwell (2015−2019)	Granite Ridge (2024)
Release date	20 June 2016 (8 years ago)	15 August 2024 (less than a year ago)
Launch price (MSRP)	$4,727	$499

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 9900X has 7951% better value for money than Xeon E5-4660 v4.

Detailed specifications

Xeon E5-4660 v4 and Ryzen 9 9900X 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	16 (Hexadeca-Core)	12 (Dodeca-Core)
Threads	32	24
Base clock speed	2.2 GHz	4.4 GHz
Boost clock speed	3 GHz	5.6 GHz
Bus type	QPI	no data
Bus rate	2 × 9.6 GT/s	no data
Multiplier	22	no data
L1 cache	no data	80 KB (per core)
L2 cache	4 MB	1 MB (per core)
L3 cache	40 MB	64 MB (shared)
Chip lithography	14 nm	4 nm
Die size	456.12 mm2	2x 70.6 mm2
Maximum core temperature	83 °C	95 °C
Number of transistors	7200 Million	16,630 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	-	+

Compatibility

Information on Xeon E5-4660 v4 and Ryzen 9 9900X 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	4 (Multiprocessor)	1
Socket	FCLGA2011	AM5
Power consumption (TDP)	120 Watt	120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-4660 v4 and Ryzen 9 9900X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	SMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A
AES-NI	+	+
AVX	+	+
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
PAE	46 Bit	no data
Precision Boost 2	no data	+

Security technologies

Xeon E5-4660 v4 and Ryzen 9 9900X 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 E5-4660 v4 and Ryzen 9 9900X 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 E5-4660 v4 and Ryzen 9 9900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5
Maximum memory size	1.5 TB	no data
Max memory channels	4	no data
Maximum memory bandwidth	68 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon Graphics

Peripherals

Specifications and connection of peripherals supported by Xeon E5-4660 v4 and Ryzen 9 9900X.

PCIe version	3.0	5.0
PCI Express lanes	40	24

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	9.68	34.52
Recency	20 June 2016	15 August 2024
Physical cores	16	12
Threads	32	24
Chip lithography	14 nm	4 nm

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Should you still have questions on choice between Xeon E5-4660 v4 and Ryzen 9 9900X, ask them in Comments section, and we shall answer.

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