Xeon Silver 4123
Intel
PassMark
14,405
Performance Spectrum - CPU
About PassMark
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
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Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon Silver 4123
FPS Benchmarks
Predicted performance for Xeon Silver 4123 across popular games. Tested paired with RTX 4090 to isolate CPU performance.
Path of Exile 2
League of Legends
Technical Analysis
Detailed breakdown of Xeon Silver 4123 specifications and capabilities.
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 |
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 |
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 |
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 |
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Our Recommendation for Xeon Silver 4123
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Popular Comparisons
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