Intel Xeon Silver 4123: specs and benchmarks

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Aggregate performance score

Xeon Silver 4123 provides acceptable benchmark performance at 9.31% of a leader's which is a 96-core Ryzen Threadripper PRO 7995WX.

Summary

Intel started Xeon Silver 4123 sales 1 January 2018. This is desktop processor primarily aimed at office systems. It has 8 cores and 16 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 3200 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA3647 processor with a TDP of 105 Watt. It supports DDR4-2400 memory.

Primary details

Xeon Silver 4123 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking753
Place by popularitynot in top-100
Market segmentServer
Release date1 January 2018 (6 years ago)

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores8 (Octa-Core)
Threads16
Base clock speed3 GHzof 4.7 (FX-9590)
Boost clock speed3.2 GHzof 6.2 (Core i9-14900KS)
L3 cache11 MBof 768 (EPYC 7373X)
Chip lithography14 nmof 3 (Apple M3 Max 16-Core)
64 bit support-
Windows 11 compatibility-
Unlocked multiplierNo

Compatibility

Information on Xeon Silver 4123 compatibility with other computer components and devices: 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.

SocketFCLGA3647
Power consumption (TDP)105 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon Silver 4123. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVX-512
AES-NI+
vPro+
Speed Shift+
Turbo Boost Technology2.0
Hyper-Threading Technology+
TSX+
Turbo Boost Max 3.0-
StatusLaunched

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-x+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon Silver 4123's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4-2400
Maximum memory size512 GBof 786 (Xeon E5-2670 v3)
Max memory channels6of 12 (Xeon Platinum 9221)
ECC memory support+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version3.0of 5 (Core i9-12900K)
PCI Express lanes48of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon Silver 4123. Overall benchmark performance 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.

Xeon Silver 4123 9.31

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

Xeon Silver 4123 14405

Gaming performance

Closest competitors

Xeon Silver 4123's performance relative to its closest rivals among server CPUs.


Xeon W-2135 100.43
Xeon Silver 4123 100
Xeon W-2235 99.79
Xeon W-1250P 99.46

Similar processors

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