
Atom N450 vs Celeron 2.20

Atom N450

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

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.

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.
Processing Power
The Atom N450 packs 1 cores / 2 threads, matching the Celeron 2.20's 1 cores. Boost clocks reach 1.67 GHz on the Atom N450 versus 2.2 GHz on the Celeron 2.20 — a 27.4% clock advantage for the Celeron 2.20. The Atom N450 uses the Pinetrail (2009−2011) architecture (45 nm), while the Celeron 2.20 uses Northwood (2002−2004) (130 nm). In PassMark, the Atom N450 scores 325 against the Celeron 2.20's 305 — a 6.3% lead for the Atom N450. Both processors carry 0 kB of L3 cache.
| Feature | Atom N450 | Celeron 2.20 |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 1 |
| Boost Clock | 1.67 GHz | 2.2 GHz+32% |
| Base Clock | 1.66 GHz | — |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB (per core)+300% | 128 kB |
| Process | 45 nm-65% | 130 nm |
| Architecture | Pinetrail (2009−2011) | Northwood (2002−2004) |
| PassMark | 325+7% | 305 |
Memory & Platform
The Atom N450 uses the FCBGA559 socket (PCIe 2.0), while the Celeron 2.20 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Atom N450 versus DDR1-400 on the Celeron 2.20 — 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: Intel NM10 (Atom N450) and 845,850,865 (Celeron 2.20).
| Feature | Atom N450 | Celeron 2.20 |
|---|---|---|
| Socket | FCBGA559 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR2-667+100% | DDR1-400 |
| Max RAM Capacity | 2 GB | 4 GB+100% |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Virtualization: not specified (Atom N450) / No (Celeron 2.20). 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 | Atom N450 | Celeron 2.20 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel GMA 3150 | — |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | No |
| Target Use | — | Budget |
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