Core i9-12900K vs Xeon D-2123IT

Primary details

Comparing Xeon D-2123IT and Core i9-12900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1293	163
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.66	60.04
Market segment	Server	Desktop processor
Series	Intel Xeon D	Intel Core i9
Architecture codename	Skylake (server) (2017−2019)	Alder Lake-S (2022)
Release date	7 February 2018 (6 years ago)	4 November 2021 (2 years ago)
Launch price (MSRP)	$213	$589
Current price	$765 (3.6x MSRP)	$424 (0.7x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-12900K has 2157% better value for money than Xeon D-2123IT.

Detailed specifications

Xeon D-2123IT 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	4 (Quad-Core)	16 (Hexadeca-Core)
Threads	8	24
Base clock speed	2.2 GHz	3.2 GHz
Boost clock speed	3 GHz	5.2 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	256 KB	80K (per core)
L2 cache	4 MB	1.25 MB (per core)
L3 cache	8.25 MB	30 MB (shared)
Chip lithography	14 nm	10 nm
Die size	no data	215.25 mm2"20.5 mm × 10.5 mm
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	no data	72 °C
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon D-2123IT 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	1	1
Socket	FCBGA2518	FCLGA1700
Power consumption (TDP)	60 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon D-2123IT and Core i9-12900K. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon D-2123IT and Core i9-12900K technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
MPX	+	no data
SGX	-	no data
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon D-2123IT 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 D-2123IT and Core i9-12900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4, DDR5
Maximum memory size	512 GB	128 GB
Max memory channels	4	2
Maximum memory bandwidth	76.805 GB/s	76.8 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	no data	+
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 D-2123IT and Core i9-12900K integrated GPUs.

Number of displays supported

no data

4

Graphics image quality

Maximum display resolutions supported by Xeon D-2123IT 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 D-2123IT 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 D-2123IT and Core i9-12900K.

PCIe version	3.0	5.0 and 4.0
PCI Express lanes	32	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

---

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 i9-12900K outperforms Xeon D-2123IT by 520% based on our aggregate benchmark results.

---

Pros & cons summary

---

Performance score	4.32	26.79
Recency	7 February 2018	4 November 2021
Physical cores	4	16
Threads	8	24
Cost	$213	$589
Chip lithography	14 nm	10 nm
Power consumption (TDP)	60 Watt	125 Watt

---

Should you still have questions on choice between Xeon D-2123IT and Core i9-12900K, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---