Intel Xeon Gold 6142 CPU — Detailed Overview
The Intel Xeon Gold 6142 is a high-performance server processor in the Intel Xeon Scalable Gold 6100 series, based on the Skylake-SP architecture. Designed for enterprise workloads, virtualization clusters, cloud computing, and HPC environments, the Xeon Gold 6142 delivers a strong balance of core count, clock speeds, and advanced instruction-set capabilities. With 16 cores and 32 threads, excellent turbo performance, and support for AVX-512, it is a powerful choice for demanding data center applications.
Intel Xeon Gold 6142 — Full Specifications
| Parameter | Details |
|---|---|
| Processor Family | Intel Xeon Scalable (Gold Series) |
| Model Number | Xeon Gold 6142 |
| Architecture / Codename | Skylake-SP |
| Manufacturing Process | 14 nm |
| Cores | 16 |
| Threads | 32 |
| Base Clock | 2.60 GHz |
| Max Turbo Frequency | 3.70 GHz |
| All-Core Turbo (Typical) | ~3.2 GHz (varies by workload) |
| L1 Cache | 1.15 MB total (64 KB D + 32 KB I per core) |
| L2 Cache | 16 MB (1 MB per core) |
| L3 Cache | 22 MB shared |
| TDP (Thermal Design Power) | 150 W |
| Max Operating Temperature (Tcase) | 78°C |
| Memory Support | DDR4-2666 ECC Registered |
| Memory Channels | 6 channels |
| Max Memory Capacity | 768 GB |
| Memory Bandwidth | Up to ~128 GB/s (theoretical) |
| PCI Express Lanes | 48 lanes (PCIe 3.0) |
| UPI Links | 3 × 10.4 GT/s |
| Socket Type | FCLGA3647 |
| Instruction Support | SSE4.2, AVX, AVX2, AVX-512 (2 FMA units) |
| Virtualization Technologies | Intel VT-x, VT-d, EPT |
| Security Features | Intel TXT, AES-NI, Secure Key, Execute Disable Bit |
| Advanced Technologies | Hyper-Threading, Turbo Boost 2.0, Speed Shift, TSX-NI |
| Launch Date | Q3 2017 |
| Status | Discontinued (widely used in enterprise environments) |
Performance Highlights
1. Strong Multi-Core Performance
With 16 cores and 32 threads, the Xeon Gold 6142 offers excellent performance for multi-threaded workloads, including virtualization, databases, cloud infrastructure, and distributed computing.
2. High Turbo Frequency
Boosting up to 3.70 GHz, the 6142 maintains responsive single-thread performance, ideal for workloads that involve mixed computing demands.
3. Advanced AVX-512 Acceleration
The CPU includes dual 512-bit FMA units, significantly speeding up:
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Machine learning inference
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Scientific simulations
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Cryptographic operations
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Financial modeling
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Engineering workloads
4. High Memory Bandwidth
With six-channel DDR4-2666 ECC support, the Xeon 6142 provides excellent memory throughput, making it suitable for data-intensive environments like:
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In-memory databases
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Big data analytics platforms
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Virtualization clusters
5. High Expandability for Enterprise Servers
Its 48 PCIe 3.0 lanes allow extensive I/O expansion for:
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NVMe storage arrays
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High-speed networking adapters
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GPUs and accelerators
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RAID controllers
This makes the 6142 ideal for software-defined storage, cloud nodes, and virtualization hosts.
Advantages of the Xeon Gold 6142
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Excellent balance of performance per core and total compute power
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Strong all-core and single-core turbo speeds
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Robust AVX-512 performance
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Highly reliable with ECC memory support
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Scalable in dual-socket or multi-socket systems
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Ideal for mission-critical server workloads
Limitations to Consider
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Based on older 14 nm Skylake architecture
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No PCIe 4.0/5.0 support (PCIe 3.0 only)
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Higher TDP (150 W) compared to lower-end Xeons
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Requires FCLGA3647 platform, which is more expensive
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Discontinued (but still widely used in secondary markets)
Ideal Use Cases
The Intel Xeon Gold 6142 is ideal for:
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Virtualization hosts (VMware, Proxmox, Hyper-V)
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Enterprise databases (SQL Server, Oracle, PostgreSQL)
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HPC and scientific computing
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Cloud computing and container clusters
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Big-data analytics
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AI/ML inference workloads
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Enterprise backend systems
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