Xeon Gold 6458Q vs i9-12900KF

Primary details

Comparing Core i9-12900KF and Xeon Gold 6458Q processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	185	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	38.87	no data
Market segment	Desktop processor	Server
Series	Intel Core i9	no data
Power efficiency	19.60	no data
Architecture codename	Alder Lake, Golden Cove, Gracemont (2021)	Sapphire Rapids (2023−2024)
Release date	27 October 2021 (3 years ago)	10 January 2023 (1 year ago)
Launch price (MSRP)	$564	$6,416

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-12900KF and Xeon Gold 6458Q 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)	32 (Dotriaconta-Core)
Threads	24	64
Base clock speed	3.2 GHz	3.1 GHz
Boost clock speed	5.2 GHz	4 GHz
Bus type	DMI 4.0	no data
Bus rate	8 × 16 GT/s	no data
Multiplier	32	no data
L1 cache	768 KB	80K (per core)
L2 cache	4 MB	2 MB (per core)
L3 cache	6 MB	60 MB
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	215.25 mm2	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	66 °C
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Core i9-12900KF and Xeon Gold 6458Q 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	2
Socket	FCLGA1700	FCLGA4677
Power consumption (TDP)	125 Watt	350 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-12900KF and Xeon Gold 6458Q. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i9-12900KF and Xeon Gold 6458Q technologies aimed at improving security, for example, by protecting against hacks.

TXT	no data	+
EDB	+	+
Secure Key	+	no data
SGX	no data	Yes with Intel® SPS
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-12900KF and Xeon Gold 6458Q are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-12900KF and Xeon Gold 6458Q. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800, DDR4-3200	DDR5-4800, DDR5-4400
Maximum memory size	128 GB	4 TB
Max memory channels	2	8
Maximum memory bandwidth	76.805 GB/s	no data
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core i9-12900KF and Xeon Gold 6458Q.

PCIe version	5.0 and 4.0	5
PCI Express lanes	20	80

Pros & cons summary

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Recency	27 October 2021	10 January 2023
Physical cores	16	32
Threads	24	64
Power consumption (TDP)	125 Watt	350 Watt

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Should you still have questions on choice between Core i9-12900KF and Xeon Gold 6458Q, ask them in Comments section, and we shall answer.

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