Xeon Gold 5420+ vs i9-12900K

Primary details

Comparing Core i9-12900K and Xeon Gold 5420+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	185	95
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	35.76	59.11
Market segment	Desktop processor	Server
Series	Intel Core i9	no data
Power efficiency	19.76	16.92
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)	$589	$1,848

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon Gold 5420+ has 65% better value for money than i9-12900K.

Detailed specifications

Core i9-12900K and Xeon Gold 5420+ 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)	28 (Octacosa-Core)
Threads	24	56
Base clock speed	3.2 GHz	2 GHz
Boost clock speed	5.2 GHz	4.1 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	52.5 MB
Chip lithography	10 nm	10 nm
Die size	215.25 mm2"	no data
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	84 °C
64 bit support	+	+
Windows 11 compatibility	+	+
Unlocked multiplier	+	-

Compatibility

Information on Core i9-12900K and Xeon Gold 5420+ 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	4677
Power consumption (TDP)	125 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-12900K and Xeon Gold 5420+. You'll probably need this information if you require some particular technology.

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

Security technologies

Core i9-12900K and Xeon Gold 5420+ technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-12900K and Xeon Gold 5420+ are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-12900K and Xeon Gold 5420+. Depending on the motherboard, higher memory frequencies may be supported.

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

Graphics specifications

General parameters of integrated GPUs, if any.

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

Graphics interfaces

Available interfaces and connections of Core i9-12900K and Xeon Gold 5420+ integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core i9-12900K and Xeon Gold 5420+ integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2160 @ 60Hz	no data
Max resolution over eDP	5120 x 3200 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i9-12900K and Xeon Gold 5420+ integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-12900K and Xeon Gold 5420+.

PCIe version	5.0 and 4.0	5.0
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.

---

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.

---

Pros & cons summary

---

Performance score	26.60	37.34
Recency	27 October 2021	10 January 2023
Physical cores	16	28
Threads	24	56
Power consumption (TDP)	125 Watt	205 Watt

---

Should you still have questions on choice between Core i9-12900K and Xeon Gold 5420+, 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.

---