
Celeron 2.20 vs Atom N450

Celeron 2.20

Atom N450
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. The Celeron 2.20 is positioned at rank 1081 and the Atom N450 is on rank 660, so the Atom N450 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 2.20
Performance Per Dollar Atom N450
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 2.20 | Atom N450 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Northwood (2002−2004) / 130 nm) | 🛑 Legacy (Pinetrail (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Celeron 2.20 | Atom N450 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
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 Celeron 2.20 and Atom N450

Celeron 2.20
The Celeron 2.20 is manufactured by Intel. It was released in 2007-01-01. It is based on the Northwood (2002−2004) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 128 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 73 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 305 points. Launch price was $69.

Atom N450
The Atom N450 is manufactured by Intel. It was released in 21 December 2009 (15 years ago). It is based on the Pinetrail (2009−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.66 GHz, with boost up to 1.67 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 5.5 Watt. Memory support: DDR2. Passmark benchmark score: 325 points. Launch price was $64.
Processing Power
The Celeron 2.20 packs 1 cores / 1 threads, matching the Atom N450's 1 cores. Boost clocks reach 2.2 GHz on the Celeron 2.20 versus 1.67 GHz on the Atom N450 — a 27.4% clock advantage for the Celeron 2.20. The Celeron 2.20 uses the Northwood (2002−2004) architecture (130 nm), while the Atom N450 uses Pinetrail (2009−2011) (45 nm). In PassMark, the Celeron 2.20 scores 305 against the Atom N450's 325 — a 6.3% lead for the Atom N450. Both processors carry 0 kB of L3 cache.
| Feature | Celeron 2.20 | Atom N450 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 2 |
| Boost Clock | 2.2 GHz+32% | 1.67 GHz |
| Base Clock | — | 1.66 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 128 kB | 512 kB (per core)+300% |
| Process | 130 nm | 45 nm-65% |
| Architecture | Northwood (2002−2004) | Pinetrail (2009−2011) |
| PassMark | 305 | 325+7% |
Memory & Platform
The Celeron 2.20 uses the PGA478 socket (PCIe 1.1), while the Atom N450 uses FCBGA559 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR1-400 on the Celeron 2.20 versus DDR2-667 on the Atom N450 — the Atom N450 supports 66.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 2.20 supports up to 4 GB of RAM compared to 2 GB — 66.7% more capacity for professional workloads. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: 845,850,865 (Celeron 2.20) and Intel NM10 (Atom N450).
| Feature | Celeron 2.20 | Atom N450 |
|---|---|---|
| Socket | PGA478 | FCBGA559 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR1-400 | DDR2-667+100% |
| Max RAM Capacity | 4 GB+100% | 2 GB |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Virtualization: No (Celeron 2.20) / not specified (Atom N450). The Atom N450 includes integrated graphics (Intel GMA 3150), while the Celeron 2.20 requires a dedicated GPU. Primary use case: Celeron 2.20 targets Budget. Direct competitor: Celeron 2.20 rivals Pentium 4 2.40.
| Feature | Celeron 2.20 | Atom N450 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Intel GMA 3150 |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | No | — |
| Target Use | Budget | — |
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