Atom N455 vs Atom Z670
Atom N455
Atom Z670
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 N455 is positioned at rank 633 and the Atom Z670 is on rank 1095, so the Atom N455 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom N455
Performance Per Dollar Atom Z670
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom N455 | Atom Z670 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Pinetrail (2009−2011) / 45 nm) | 🛑 Legacy (Lincroft (2010−2011) / 45 nm) |
💎 Value Proposition
| Insight | Atom N455 | Atom Z670 |
|---|---|---|
| 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 Atom N455 and Atom Z670
Atom N455
The Atom N455 is manufactured by Intel. It was released in 1 June 2010 (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: 512K (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 6.5 Watt. Memory support: DDR3. Passmark benchmark score: 345 points. Launch price was $64.
Atom Z670
The Atom Z670 is manufactured by Intel. It was released in 11 April 2011 (14 years ago). It is based on the Lincroft (2010−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.5 GHz, with boost up to 1.5 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 45 nm process technology. Socket: T-PBGA518. Thermal design power (TDP): 3 Watt. Memory support: DDR2. Passmark benchmark score: 375 points. Launch price was $75.
Processing Power
Both the Atom N455 and Atom Z670 share an identical 1-core/2-thread configuration. Boost clocks reach 1.67 GHz on the Atom N455 versus 1.5 GHz on the Atom Z670 — a 10.7% clock advantage for the Atom N455 (base: 1.66 GHz vs 1.5 GHz). The Atom N455 uses the Pinetrail (2009−2011) architecture (45 nm), while the Atom Z670 uses Lincroft (2010−2011) (45 nm). In PassMark, the Atom N455 scores 345 against the Atom Z670's 375 — a 8.3% lead for the Atom Z670. Both processors carry 0 kB of L3 cache.
| Feature | Atom N455 | Atom Z670 |
|---|---|---|
| Cores / Threads | 1 / 2 | 1 / 2 |
| Boost Clock | 1.67 GHz+11% | 1.5 GHz |
| Base Clock | 1.66 GHz+11% | 1.5 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512K (per core) | 512K (per core) |
| Process | 45 nm | 45 nm |
| Architecture | Pinetrail (2009−2011) | Lincroft (2010−2011) |
| PassMark | 345 | 375+9% |
Memory & Platform
The Atom N455 uses the FCBGA559 socket (PCIe 2.0), while the Atom Z670 uses T-PBGA518 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-667 on the Atom N455 versus DDR2-800 on the Atom Z670 — the Atom N455 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 2 GB of RAM. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: Intel NM10 (Atom N455) and Intel SM35 (Atom Z670).
| Feature | Atom N455 | Atom Z670 |
|---|---|---|
| Socket | FCBGA559 | T-PBGA518 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-667+50% | DDR2-800 |
| Max RAM Capacity | 2 GB | 2 GB |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Both include integrated graphics — Intel GMA 3150 (Atom N455) and Intel GMA 600 (Atom Z670) — useful as a fallback for troubleshooting or display output without a dedicated GPU.
| Feature | Atom N455 | Atom Z670 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel GMA 3150 | Intel GMA 600 |
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