PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Overview

The Xeon Silver 4123 is manufactured by Intel. It was released in 2015-01-01. It features 8 cores and 16 threads. Base frequency is 3 GHz, with boost up to 3.2 GHz. L3 cache: 11 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 105 Watt. Memory support: DDR4-2400. Passmark benchmark score: 14,405 points. Launch price was $800.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Xeon Silver 4123 across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Xeon Silver 4123 specifications and capabilities.

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Processing Power

The Xeon Silver 4123 is a 8-core / 16-thread processor, manufactured on a 14 nm process node. It reaches a maximum boost clock of 3.2 GHz from a base frequency of 3 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 11 MB of L3 cache. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 14,405, placing it in the Budget performance tier as a Legacy generation product.

Specification	Xeon Silver 4123
Cores / ThreadsPhysical/logical processing units	8C / 16T
Max Boost ClockPeak single-core speed under boost	3.2 GHz
Base ClockGuaranteed minimum operating frequency	3 GHz
Process NodeFabrication technology — smaller = more efficient	14 nm
L3 CacheShared cache — reduces memory latency for all cores	11 MB
64-bit Support	No
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	14,405

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Memory & Platform

The Xeon Silver 4123 fits into the LGA3647 socket and supports PCIe 3.0. It supports DDR4-2400 memory.

Specification	Xeon Silver 4123
TypeDesktop or Laptop processor	server
SocketMotherboard socket required	LGA3647
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 3.0
RAM TypeSupported memory standard	DDR4-2400

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Power & Cooling

The Xeon Silver 4123 has a rated TDP (Thermal Design Power) of 105 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

Specification	Xeon Silver 4123
TDPThermal Design Power — heat output under sustained workload	105 Watt

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Value Analysis

Performance ranking position: #1044 out of all indexed processors.

Specification	Xeon Silver 4123
Launch PriceOriginal retail price at launch	$800
Performance RankPosition in overall performance ranking	#1044
Release DateLaunch date	2015-01-01
Release Year	2018
DesignerArchitecture designer (e.g. Intel, AMD)	Intel