CPU
GPU
Xeon D-2166NT
EPYC 7251
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.
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon D-2166NT
Performance Per Dollar EPYC 7251
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon D-2166NT | EPYC 7251 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | ✨ Modern (Naples (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Xeon D-2166NT | EPYC 7251 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Xeon D-2166NT and EPYC 7251
Xeon D-2166NT
The Xeon D-2166NT is manufactured by Intel. It was released in 7 February 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 12 cores and 24 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 16.5 MB. L2 cache: 12 MB. Built on 14 nm process technology. Socket: FCBGA2518. Thermal design power (TDP): 85 Watt. Memory support: DDR4. Passmark benchmark score: 15,105 points. Launch price was $1,005.
EPYC 7251
The EPYC 7251 is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 2.9 GHz. L3 cache: 32 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 120 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 14,935 points. Launch price was $574.
Processing Power
The Xeon D-2166NT packs 12 cores / 24 threads, while the EPYC 7251 offers 8 cores / 16 threads — the Xeon D-2166NT has 4 more cores. Boost clocks reach 3 GHz on the Xeon D-2166NT versus 2.9 GHz on the EPYC 7251 — a 3.4% clock advantage for the Xeon D-2166NT (base: 2 GHz vs 2.1 GHz). The Xeon D-2166NT uses the Skylake (server) (2017−2018) architecture (14 nm), while the EPYC 7251 uses Naples (2017−2018) (14 nm). In PassMark, the Xeon D-2166NT scores 15,105 against the EPYC 7251's 14,935 — a 1.1% lead for the Xeon D-2166NT. L3 cache: 16.5 MB on the Xeon D-2166NT vs 32 MB (total) on the EPYC 7251.
| Feature | Xeon D-2166NT | EPYC 7251 |
|---|---|---|
| Cores / Threads | 12 / 24+50% | 8 / 16 |
| Boost Clock | 3 GHz+3% | 2.9 GHz |
| Base Clock | 2 GHz | 2.1 GHz+5% |
| L3 Cache | 16.5 MB | 32 MB (total)+94% |
| L2 Cache | 12 MB+2300% | 512K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Skylake (server) (2017−2018) | Naples (2017−2018) |
| PassMark | 15,105+1% | 14,935 |
Memory & Platform
The Xeon D-2166NT uses the FCBGA2518 socket (PCIe 3.0), while the EPYC 7251 uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Xeon D-2166NT | EPYC 7251 |
|---|---|---|
| Socket | FCBGA2518 | TR4 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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