Atom x5-Z8350 vs i9-9900KF

Primary details

Comparing Core i9-9900KF and Atom x5-Z8350 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	674	2820
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.18	no data
Market segment	Desktop processor	Laptop
Series	Intel Core i9	5x Intel Atom
Power efficiency	11.45	no data
Architecture codename	Coffee Lake-R (2018−2019)	Cherry Trail (2015−2016)
Release date	7 January 2019 (5 years ago)	8 February 2016 (8 years ago)
Launch price (MSRP)	$488	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-9900KF and Atom x5-Z8350 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	8 (Octa-Core)	4 (Quad-Core)
Threads	16	4
Base clock speed	3.6 GHz	1.44 GHz
Boost clock speed	5 GHz	1.92 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
L1 cache	512 KB	no data
L2 cache	2 MB	2 MB
L3 cache	16 MB (shared)	0 KB
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °C	90 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	+	-

Compatibility

Information on Core i9-9900KF and Atom x5-Z8350 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 (Uniprocessor)
Socket	FCLGA1151	UTFCBGA592
Power consumption (TDP)	95 Watt	no data

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900KF and Atom x5-Z8350. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	no data
AES-NI	+	+
AVX	+	-
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Idle States	+	no data
Thermal Monitoring	+	-
Turbo Boost Max 3.0	no data	-

Security technologies

Core i9-9900KF and Atom x5-Z8350 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data
Secure Boot	no data	+
Secure Key	+	no data
MPX	+	-
Identity Protection	+	+
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900KF and Atom x5-Z8350 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900KF and Atom x5-Z8350. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	4 GB
Maximum memory size	128 GB	2 GB
Max memory channels	2	1
Maximum memory bandwidth	42.671 GB/s	12.8 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel HD Graphics
Max video memory	no data	2 GB
Graphics max frequency	no data	500 MHz
Execution Units	no data	12

Graphics interfaces

Available interfaces and connections of Core i9-9900KF and Atom x5-Z8350 integrated GPUs.

Number of displays supported

no data

2

Graphics image quality

Maximum display resolutions supported by Core i9-9900KF and Atom x5-Z8350 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4

no data

1920x1080

Peripherals

Specifications and connection of peripherals supported by Core i9-9900KF and Atom x5-Z8350.

PCIe version	3.0	2.0
PCI Express lanes	16	1
USB revision	no data	3.0

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	11.54	0.56
Recency	7 January 2019	8 February 2016
Physical cores	8	4
Threads	16	4

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Should you still have questions on choice between Core i9-9900KF and Atom x5-Z8350, ask them in Comments section, and we shall answer.

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