Xeon Gold 6143 vs Core i9-11900KF

Primary details

Comparing Core i9-11900KF and Xeon Gold 6143 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	380	395
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	49.29	no data
Market segment	Desktop processor	Server
Architecture codename	Rocket Lake (2021)	no data
Release date	16 March 2021 (3 years ago)	1 July 2017 (7 years ago)
Current price	$250	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-11900KF and Xeon Gold 6143 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)	16 (Hexadeca-Core)
Threads	16	32
Base clock speed	3.5 GHz	2.8 GHz
Boost clock speed	5.2 GHz	4 GHz
L1 cache	64K (per core)	no data
L2 cache	256K (per core)	no data
L3 cache	16 MB (shared)	22 MB
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °C	74 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	-
Windows 11 compatibility	+	-
Unlocked multiplier	Yes	No

Compatibility

Information on Core i9-11900KF and Xeon Gold 6143 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	no data
Socket	FCLGA1200	FCLGA3647
Power consumption (TDP)	125 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-11900KF and Xeon Gold 6143. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	no data
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	+	no data
SIPP	-	no data
Turbo Boost Max 3.0	+	-
Status	Discontinued	Launched

Security technologies

Core i9-11900KF and Xeon Gold 6143 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	no data
Identity Protection	+	no data
SGX	-	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-11900KF and Xeon Gold 6143 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-11900KF and Xeon Gold 6143. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR4-2666
Maximum memory size	128 GB	768 GB
Max memory channels	2	6
Maximum memory bandwidth	50 GB/s	no data
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core i9-11900KF and Xeon Gold 6143.

PCIe version	4.0	3.0
PCI Express lanes	20	48

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.

Core i9-11900KF outperforms Xeon Gold 6143 by 1% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	16.23	16.02
Recency	16 March 2021	1 July 2017
Physical cores	8	16
Threads	16	32
Power consumption (TDP)	125 Watt	205 Watt

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Should you still have questions on choice between Core i9-11900KF and Xeon Gold 6143, ask them in Comments section, and we shall answer.

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