Atom C3558 vs Phenom II X4 840
Atom C3558
Phenom II X4 840
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 C3558 is positioned at rank 365 and the Phenom II X4 840 is on rank 250, so the Phenom II X4 840 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom C3558
Performance Per Dollar Phenom II X4 840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom C3558 | Phenom II X4 840 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Goldmont (2016−2017) / 14 nm) | 🛑 Legacy (Propus (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Atom C3558 | Phenom II X4 840 |
|---|---|---|
| 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 C3558 and Phenom II X4 840
Atom C3558
The Atom C3558 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 4 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 8 MB. L2 cache: 8 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 16 Watt. Memory support: DDR4: 2133. Passmark benchmark score: 2,431 points. Launch price was $86.
Phenom II X4 840
The Phenom II X4 840 is manufactured by AMD. It was released in 4 January 2011 (14 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,449 points. Launch price was $90.
Processing Power
Both the Atom C3558 and Phenom II X4 840 share an identical 4-core/4-thread configuration. Boost clocks reach 2.2 GHz on the Atom C3558 versus 3.2 GHz on the Phenom II X4 840 — a 37% clock advantage for the Phenom II X4 840 (base: 2.2 GHz vs 3.2 GHz). The Atom C3558 uses the Goldmont (2016−2017) architecture (14 nm), while the Phenom II X4 840 uses Propus (2009−2011) (45 nm). In PassMark, the Atom C3558 scores 2,431 against the Phenom II X4 840's 2,449 — a 0.7% lead for the Phenom II X4 840. L3 cache: 8 MB on the Atom C3558 vs 0 kB on the Phenom II X4 840.
| Feature | Atom C3558 | Phenom II X4 840 |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 2.2 GHz | 3.2 GHz+45% |
| Base Clock | 2.2 GHz | 3.2 GHz+45% |
| L3 Cache | 8 MB | 0 kB |
| L2 Cache | 8 MB+1500% | 512 kB (per core) |
| Process | 14 nm-69% | 45 nm |
| Architecture | Goldmont (2016−2017) | Propus (2009−2011) |
| PassMark | 2,431 | 2,449 |
Memory & Platform
The Atom C3558 uses the FCBGA1310 socket (PCIe 3.0), while the Phenom II X4 840 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Atom C3558 | Phenom II X4 840 |
|---|---|---|
| Socket | FCBGA1310 | AM3 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2133 | — |
| Max RAM Capacity | 256 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 12 | — |
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