
Atom E3827 vs Athlon 64 FX-55

Atom E3827

Athlon 64 FX-55
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 E3827 is positioned at rank 953 and the Athlon 64 FX-55 is on rank 1134, so the Atom E3827 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom E3827
Performance Per Dollar Athlon 64 FX-55
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom E3827 | Athlon 64 FX-55 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($50) |
| Longevity | 🛑 Legacy (Bay Trail-I (2013) / 22 nm) | 🛑 Legacy (Clawhammer (2001−2005) / 130 nm) |
💎 Value Proposition
| Insight | Atom E3827 | Athlon 64 FX-55 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($50) |
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 E3827 and Athlon 64 FX-55

Atom E3827
The Atom E3827 is manufactured by Intel. It was released in 8 October 2013 (12 years ago). It is based on the Bay Trail-I (2013) architecture. It features 2 cores and 2 threads. Max frequency: 1.75 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 8 Watt. Memory support: DDR3. Passmark benchmark score: 665 points. Launch price was $69.

Athlon 64 FX-55
The Athlon 64 FX-55 is manufactured by AMD. It was released in 10 October 2004 (21 years ago). It is based on the Clawhammer (2001−2005) architecture. It features 1 cores and 1 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 939. Thermal design power (TDP): 104 Watt. Memory support: DDR1 Depends on motherboard. Passmark benchmark score: 690 points. Launch price was $180.
Processing Power
The Atom E3827 packs 2 cores / 2 threads, while the Athlon 64 FX-55 offers 1 cores / 1 threads — the Atom E3827 has 1 more core. Boost clocks reach 1.75 GHz on the Atom E3827 versus 2.6 GHz on the Athlon 64 FX-55 — a 39.1% clock advantage for the Athlon 64 FX-55. The Atom E3827 uses the Bay Trail-I (2013) architecture (22 nm), while the Athlon 64 FX-55 uses Clawhammer (2001−2005) (130 nm). In PassMark, the Atom E3827 scores 665 against the Athlon 64 FX-55's 690 — a 3.7% lead for the Athlon 64 FX-55. Both processors carry 0 kB of L3 cache.
| Feature | Atom E3827 | Athlon 64 FX-55 |
|---|---|---|
| Cores / Threads | 2 / 2+100% | 1 / 1 |
| Boost Clock | 1.75 GHz | 2.6 GHz+49% |
| Base Clock | — | 2.6 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB (per core) | 1 MB+100% |
| Process | 22 nm-83% | 130 nm |
| Architecture | Bay Trail-I (2013) | Clawhammer (2001−2005) |
| PassMark | 665 | 690+4% |
Memory & Platform
The Atom E3827 uses the FCBGA1170 socket (PCIe 2.0), while the Athlon 64 FX-55 uses 939 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1333 on the Atom E3827 versus DDR1-400 on the Athlon 64 FX-55 — the Atom E3827 supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom E3827 supports up to 8 GB of RAM compared to 4 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 4 (Atom E3827) vs 0 (Athlon 64 FX-55) — the Atom E3827 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1170 (Atom E3827) and nForce3,nForce4,Xpress 200 (Athlon 64 FX-55).
| Feature | Atom E3827 | Athlon 64 FX-55 |
|---|---|---|
| Socket | FCBGA1170 | 939 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3L-1333+200% | DDR1-400 |
| Max RAM Capacity | 8 GB+100% | 4 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 4 | 0 |
Advanced Features
The Atom E3827 includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Athlon 64 FX-55 requires a dedicated GPU.
| Feature | Atom E3827 | Athlon 64 FX-55 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel HD Graphics (Bay Trail) | — |
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