i9-12900K vs Xeon Platinum 8276L

Primary details

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

Place in the ranking	not rated	182
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	37.71
Market segment	Server	Desktop processor
Series	Intel Xeon Platinum	Intel Core i9
Power efficiency	no data	19.77
Architecture codename	Cascade Lake (2019−2020)	Alder Lake, Golden Cove, Gracemont (2021)
Release date	2 April 2019 (5 years ago)	27 October 2021 (3 years ago)
Launch price (MSRP)	$16,616	$589

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Platinum 8276L and Core i9-12900K 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	3.2 GHz
Boost clock speed	4 GHz	5.2 GHz
Bus type	no data	DMI 4.0
Bus rate	no data	8 × 16 GT/s
Multiplier	22	32
L1 cache	1.75 MB	768 KB
L2 cache	28 MB	4 MB
L3 cache	38.5 MB	6 MB
Chip lithography	14 nm	10 nm
Die size	no data	215.25 mm2"
Maximum core temperature	89 °C	100 °C
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	-	+

Compatibility

Information on Xeon Platinum 8276L and Core i9-12900K 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	FCLGA1700
Power consumption (TDP)	165 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Platinum 8276L and Core i9-12900K. 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	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	-
Idle States	no data	+
Thermal Monitoring	-	+
SIPP	-	+
Turbo Boost Max 3.0	-	+
Deep Learning Boost	+	+

Security technologies

Xeon Platinum 8276L and Core i9-12900K 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 8276L and Core i9-12900K are enumerated here.

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

Memory specs

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

Supported memory types	DDR4-2933	DDR4, DDR5
Maximum memory size	4.5 TB	128 GB
Max memory channels	6	2
Maximum memory bandwidth	140.8 GB/s	76.805 GB/s
ECC memory support	+	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel UHD Graphics 770
Quick Sync Video	-	+
Clear Video HD	no data	+
Graphics max frequency	no data	1.55 GHz
Execution Units	no data	32

Graphics interfaces

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

Number of displays supported

no data

4

Graphics image quality

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

Max resolution over HDMI 1.4	no data	4096 x 2160 @ 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 8276L and Core i9-12900K integrated GPUs, sometimes API versions are included.

DirectX	no data	12
OpenGL	no data	4.5

Peripherals

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

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	27 October 2021
Physical cores	28	16
Threads	56	24
Chip lithography	14 nm	10 nm
Power consumption (TDP)	165 Watt	125 Watt

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