
Ryzen 5 5600X vs Atom N455

Ryzen 5 5600X

Atom N455
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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 Ryzen 5 5600X
Performance Per Dollar Atom N455
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 5 5600X | Atom N455 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($135) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | 🛑 Legacy (Pinetrail (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Ryzen 5 5600X | Atom N455 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($135) | ✅ 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 Ryzen 5 5600X and Atom N455

Ryzen 5 5600X
The Ryzen 5 5600X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 6 cores and 12 threads. Base frequency is 3.7 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 21,845 points. Launch price was $299.

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.
Processing Power
The Ryzen 5 5600X packs 6 cores / 12 threads, while the Atom N455 offers 1 cores / 2 threads — the Ryzen 5 5600X has 5 more cores. Boost clocks reach 4.6 GHz on the Ryzen 5 5600X versus 1.67 GHz on the Atom N455 — a 93.5% clock advantage for the Ryzen 5 5600X (base: 3.7 GHz vs 1.66 GHz). The Ryzen 5 5600X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Atom N455 uses Pinetrail (2009−2011) (45 nm). In PassMark, the Ryzen 5 5600X scores 21,845 against the Atom N455's 345 — a 193.8% lead for the Ryzen 5 5600X. L3 cache: 32 MB on the Ryzen 5 5600X vs 0 kB on the Atom N455.
| Feature | Ryzen 5 5600X | Atom N455 |
|---|---|---|
| Cores / Threads | 6 / 12+500% | 1 / 2 |
| Boost Clock | 4.6 GHz+175% | 1.67 GHz |
| Base Clock | 3.7 GHz+123% | 1.66 GHz |
| L3 Cache | 32 MB | 0 kB |
| L2 Cache | 512K (per core) | 512K (per core) |
| Process | 7 nm, 12 nm-84% | 45 nm |
| Architecture | Vermeer (Zen 3) (2020−2022) | Pinetrail (2009−2011) |
| PassMark | 21,845+6232% | 345 |
Memory & Platform
The Ryzen 5 5600X uses the AM4 socket (PCIe 4.0), while the Atom N455 uses FCBGA559 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 5 5600X versus DDR3-667 on the Atom N455 — the Ryzen 5 5600X supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 5 5600X supports up to 128 GB of RAM compared to 2 GB — 193.8% more capacity for professional workloads. Memory channels: 2 (Ryzen 5 5600X) vs 1 (Atom N455). PCIe lanes: 24 (Ryzen 5 5600X) vs 0 (Atom N455) — the Ryzen 5 5600X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 5 5600X) and Intel NM10 (Atom N455).
| Feature | Ryzen 5 5600X | Atom N455 |
|---|---|---|
| Socket | AM4 | FCBGA559 |
| PCIe Generation | PCIe 4.0+100% | PCIe 2.0 |
| Max RAM Speed | DDR4-3200+33% | DDR3-667 |
| Max RAM Capacity | 128 GB+6300% | 2 GB |
| RAM Channels | 2+100% | 1 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 24 | 0 |
Advanced Features
Virtualization: AMD-V (Ryzen 5 5600X) / not specified (Atom N455). The Atom N455 includes integrated graphics (Intel GMA 3150), while the Ryzen 5 5600X requires a dedicated GPU. Primary use case: Ryzen 5 5600X targets Desktop.
| Feature | Ryzen 5 5600X | Atom N455 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Intel GMA 3150 |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Desktop | — |
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