i9-12900HX vs Xeon Platinum 8276

Primary details

Comparing Xeon Platinum 8276 and Core i9-12900HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	250
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	Intel Xeon Platinum	no data
Power efficiency	no data	36.77
Architecture codename	Cascade Lake-SP (2018−2019)	Alder Lake-HX (2022)
Release date	2 April 2019 (5 years ago)	10 May 2022 (2 years ago)
Launch price (MSRP)	$8,719	no data

Detailed specifications

Xeon Platinum 8276 and Core i9-12900HX 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	28 (Octacosa-Core)	16 (Hexadeca-Core)
Threads	56	24
Base clock speed	2.2 GHz	2.3 GHz
Boost clock speed	4 GHz	5 GHz
Multiplier	22	no data
L1 cache	1.75 MB	80K (per core)
L2 cache	28 MB	1.25 MB (per core)
L3 cache	38.5 MB (shared)	30 MB (shared)
Chip lithography	14 nm	Intel 7 nm
Die size	no data	215 mm2
Maximum core temperature	89 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	8,000 million	no data
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	-	+

Compatibility

Information on Xeon Platinum 8276 and Core i9-12900HX 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	8 (Multiprocessor)	1
Socket	FCLGA3647	FCBGA1964
Power consumption (TDP)	165 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8276 and Core i9-12900HX. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon Platinum 8276 and Core i9-12900HX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Platinum 8276 and Core i9-12900HX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8276 and Core i9-12900HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2933	DDR4, DDR5
Maximum memory size	1 TB	128 GB
Max memory channels	6	2
Maximum memory bandwidth	140.8 GB/s	76.8 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	N/A	Intel® UHD Graphics for 12th Gen Intel® Processors
Quick Sync Video	-	+
Graphics max frequency	no data	1.55 GHz
Execution Units	no data	32

Graphics interfaces

Available interfaces and connections of Xeon Platinum 8276 and Core i9-12900HX integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Xeon Platinum 8276 and Core i9-12900HX integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	no data	4096 x 2304 @ 60Hz
Max resolution over eDP	no data	5120 x 3200 @ 120Hz
Max resolution over DisplayPort	no data	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Xeon Platinum 8276 and Core i9-12900HX integrated GPUs, sometimes API versions are included.

DirectX	no data	12.1
OpenGL	no data	4.6

Peripherals

Specifications and connection of peripherals supported by Xeon Platinum 8276 and Core i9-12900HX.

PCIe version	3.0	5.0 and 4.0
PCI Express lanes	48	20

Pros & cons summary

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Recency	2 April 2019	10 May 2022
Physical cores	28	16
Threads	56	24
Power consumption (TDP)	165 Watt	55 Watt

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Should you still have questions on choice between Xeon Platinum 8276 and Core i9-12900HX, ask them in Comments section, and we shall answer.

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