Xeon Gold 6421N vs i9-12900H

Primary details

Comparing Core i9-12900H and Xeon Gold 6421N processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	360	90
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	44.63
Market segment	Laptop	Server
Series	Intel Alder Lake-P	no data
Power efficiency	36.87	18.94
Architecture codename	Alder Lake-H (2022)	Sapphire Rapids (2023−2024)
Release date	4 January 2022 (2 years ago)	10 January 2023 (1 year ago)
Launch price (MSRP)	no data	$2,368

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-12900H and Xeon Gold 6421N 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	14 (Tetradeca-Core)	32 (Dotriaconta-Core)
Threads	20	64
Base clock speed	2.5 GHz	1.8 GHz
Boost clock speed	5 GHz	3.6 GHz
L1 cache	80K (per core)	80K (per core)
L2 cache	1.25 MB (per core)	2 MB (per core)
L3 cache	24 MB (shared)	60 MB
Chip lithography	Intel 7 nm	Intel 7 nm
Die size	217 mm2	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	85 °C
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Core i9-12900H and Xeon Gold 6421N 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	1
Socket	FCBGA1744	FCLGA4677
Power consumption (TDP)	45 Watt	185 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-12900H and Xeon Gold 6421N. 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	+	+
FMA	+	-
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Thermal Monitoring	+	-
Flex Memory Access	+	no data
SIPP	+	-
Turbo Boost Max 3.0	+	no data
Deep Learning Boost	+	+

Security technologies

Core i9-12900H and Xeon Gold 6421N technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-12900H and Xeon Gold 6421N are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-12900H and Xeon Gold 6421N. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR5	DDR5-4400
Maximum memory size	64 GB	4 TB
Max memory channels	2	8
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® Iris® Xe Graphics eligible	no data
Quick Sync Video	+	-
Graphics max frequency	1.45 GHz	no data
Execution Units	96	no data

Graphics interfaces

Available interfaces and connections of Core i9-12900H and Xeon Gold 6421N integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core i9-12900H and Xeon Gold 6421N integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2304 @ 60Hz	no data
Max resolution over eDP	4096 x 2304 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i9-12900H and Xeon Gold 6421N integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-12900H and Xeon Gold 6421N.

PCIe version	4.0	5
PCI Express lanes	20	80

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	17.53	37.02
Recency	4 January 2022	10 January 2023
Physical cores	14	32
Threads	20	64
Power consumption (TDP)	45 Watt	185 Watt

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Should you still have questions on choice between Core i9-12900H and Xeon Gold 6421N, ask them in Comments section, and we shall answer.

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