Xeon w7-3455 vs i9-9900KF

Primary details

Comparing Core i9-9900KF and Xeon w7-3455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	659	95
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	8.91	40.31
Market segment	Desktop processor	Server
Series	Intel Core i9	no data
Architecture codename	Coffee Lake-R (2018−2019)	Sapphire Rapids (2023−2024)
Release date	7 January 2019 (5 years ago)	15 February 2023 (1 year ago)
Launch price (MSRP)	$488	$2,489

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon w7-3455 has 352% better value for money than i9-9900KF.

Detailed specifications

Core i9-9900KF and Xeon w7-3455 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)	24 (Tetracosa-Core)
Threads	16	48
Base clock speed	3.6 GHz	2.5 GHz
Boost clock speed	5 GHz	4.8 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
L1 cache	512 KB	80 KB (per core)
L2 cache	2 MB	2 MB (per core)
L3 cache	16 MB (shared)	67.5 MB
Chip lithography	14 nm	Intel 7 nm
Die size	no data	4x 477 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core i9-9900KF and Xeon w7-3455 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
Socket	FCLGA1151	FCLGA4677
Power consumption (TDP)	95 Watt	270 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900KF and Xeon w7-3455. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, 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	+
Status	Discontinued	Launched
Deep Learning Boost	-	+

Security technologies

Core i9-9900KF and Xeon w7-3455 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	-
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900KF and Xeon w7-3455 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 w7-3455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR5-4800
Maximum memory size	128 GB	4 TB
Max memory channels	2	8
Maximum memory bandwidth	42.671 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

N/A

Peripherals

Specifications and connection of peripherals supported by Core i9-9900KF and Xeon w7-3455.

PCIe version	3.0	5.0
PCI Express lanes	16	112

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.

Pros & cons summary

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Performance score	11.96	37.43
Recency	7 January 2019	15 February 2023
Physical cores	8	24
Threads	16	48
Power consumption (TDP)	95 Watt	270 Watt

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Should you still have questions on choice between Core i9-9900KF and Xeon w7-3455, ask them in Comments section, and we shall answer.

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