Celeron N5100
Opteron X3421
Celeron N5100 vs Opteron X3421 Performance Spectrum
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.
Celeron N5100 vs Opteron X3421 FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
Celeron N5100 vs Opteron X3421: Pros, Cons & Final Verdict
See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.
Celeron N5100
2021Why buy it
- ✅Draws 6W instead of 15W, a 9W reduction.
Trade-offs
- ❌Worse for gaming: lower average FPS than Opteron X3421 across 50 shared CPU benchmark tests.
- ❌Lower PassMark (3,305 vs 3,306).
Opteron X3421
2017Why buy it
- ✅Better for gaming: +5.2% higher average FPS across 50 shared CPU benchmark tests.
Trade-offs
- ❌150% higher power demand at 15W vs 6W.
Quick Answers
So, is Opteron X3421 better than Celeron N5100?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Celeron N5100 vs Opteron X3421 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
Celeron N5100
The Celeron N5100 is manufactured by Intel. It was released in 2007-01-01. It is based on the Jasper Lake (2021) architecture. It features 4 cores and 4 threads. Base frequency is 1.1 GHz, with boost up to 2.8 GHz. L3 cache: 4 MB (total). L2 cache: 1.5 MB (total). Built on 10 nm process technology. Socket: BGA1338. Thermal design power (TDP): 6 Watt. Memory support: DDR4. Passmark benchmark score: 3,305 points. Launch price was $69.
Opteron X3421
The Opteron X3421 is manufactured by AMD. It was released in 2015-01-01. It is based on the Excavator (2017−2018) architecture. It features 4 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 3.4 GHz. L2 cache: 2 MB (total). Built on 28 nm process technology. Socket: FP4. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 3,306 points. Launch price was $800.
Processing Power
Both the Celeron N5100 and Opteron X3421 share an identical 4-core/4-thread configuration. Boost clocks reach 2.8 GHz on the Celeron N5100 versus 3.4 GHz on the Opteron X3421 — a 19.4% clock advantage for the Opteron X3421 (base: 1.1 GHz vs 2.1 GHz). The Celeron N5100 uses the Jasper Lake (2021) architecture (10 nm), while the Opteron X3421 uses Excavator (2017−2018) (28 nm). In PassMark, the Celeron N5100 scores 3,305 against the Opteron X3421's 3,306 — a 0% lead for the Opteron X3421.
| Feature | Celeron N5100 | Opteron X3421 |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 2.8 GHz | 3.4 GHz+21% |
| Base Clock | 1.1 GHz | 2.1 GHz+91% |
| L3 Cache | 4 MB (total) | — |
| L2 Cache | 1.5 MB (total) | 2 MB (total)+33% |
| Process | 10 nm-64% | 28 nm |
| Architecture | Jasper Lake (2021) | Excavator (2017−2018) |
| PassMark | 3,305 | 3,306 |
Memory & Platform
The Celeron N5100 uses the BGA1338 socket (PCIe 4.0), while the Opteron X3421 uses FP4 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Celeron N5100 | Opteron X3421 |
|---|---|---|
| Socket | BGA1338 | FP4 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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