Xeon Platinum 8170 vs i9-9900KF

Primary details

Comparing Core i9-9900KF and Xeon Platinum 8170 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	672	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.32	no data
Market segment	Desktop processor	Server
Series	Intel Core i9	Intel Xeon Platinum
Power efficiency	11.46	no data
Architecture codename	Coffee Lake-R (2018−2019)	Skylake (server) (2017−2019)
Release date	7 January 2019 (5 years ago)	25 April 2017 (7 years ago)
Launch price (MSRP)	$488	$7,405

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-9900KF and Xeon Platinum 8170 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)	26 (Hexacosa-Core)
Threads	16	52
Base clock speed	3.6 GHz	2.1 GHz
Boost clock speed	5 GHz	3.7 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	no data	21
L1 cache	512 KB	1.625 MB
L2 cache	2 MB	26 MB
L3 cache	16 MB (shared)	35.75 MB
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °C	89 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core i9-9900KF and Xeon Platinum 8170 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)	8 (Multiprocessor)
Socket	FCLGA1151	FCLGA3647
Power consumption (TDP)	95 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900KF and Xeon Platinum 8170. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Idle States	+	no data
Thermal Monitoring	+	-
Turbo Boost Max 3.0	no data	-

Security technologies

Core i9-9900KF and Xeon Platinum 8170 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
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 Xeon Platinum 8170 are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900KF and Xeon Platinum 8170. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-2666
Maximum memory size	128 GB	768 GB
Max memory channels	2	6
Maximum memory bandwidth	42.671 GB/s	128.001 GB/s
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core i9-9900KF and Xeon Platinum 8170.

PCIe version	3.0	3.0
PCI Express lanes	16	48

Pros & cons summary

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Recency	7 January 2019	25 April 2017
Physical cores	8	26
Threads	16	52
Power consumption (TDP)	95 Watt	165 Watt

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Should you still have questions on choice between Core i9-9900KF and Xeon Platinum 8170, ask them in Comments section, and we shall answer.

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