
Atom E3826 vs Celeron U3400

Atom E3826

Celeron U3400
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 E3826 is positioned at rank 922 and the Celeron U3400 is on rank 1172, so the Atom E3826 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom E3826
Performance Per Dollar Celeron U3400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom E3826 | Celeron U3400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
| Longevity | 🛑 Legacy (Bay Trail-I (2013) / 22 nm) | 🛑 Legacy (Westmere (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Atom E3826 | Celeron U3400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
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 E3826 and Celeron U3400

Atom E3826
The Atom E3826 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: 1.47 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 7 Watt. Memory support: DDR3. Passmark benchmark score: 545 points. Launch price was $69.

Celeron U3400
The Celeron U3400 is manufactured by Intel. It was released in 2007-01-01. It is based on the Westmere (2010−2011) architecture. It features 2 cores and 2 threads. Base frequency is 1.06 GHz, with boost up to 0.07 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3-800. Passmark benchmark score: 575 points. Launch price was $69.
Processing Power
Both the Atom E3826 and Celeron U3400 share an identical 2-core/2-thread configuration. Boost clocks reach 1.47 GHz on the Atom E3826 versus 0.07 GHz on the Celeron U3400 — a 181.8% clock advantage for the Atom E3826. The Atom E3826 uses the Bay Trail-I (2013) architecture (22 nm), while the Celeron U3400 uses Westmere (2010−2011) (32 nm). In PassMark, the Atom E3826 scores 545 against the Celeron U3400's 575 — a 5.4% lead for the Celeron U3400. L3 cache: 0 kB on the Atom E3826 vs 2 MB on the Celeron U3400.
| Feature | Atom E3826 | Celeron U3400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.47 GHz+2000% | 0.07 GHz |
| Base Clock | — | 1.06 GHz |
| L3 Cache | 0 kB | 2 MB |
| L2 Cache | 512 kB (per core) | 512 kB |
| Process | 22 nm-31% | 32 nm |
| Architecture | Bay Trail-I (2013) | Westmere (2010−2011) |
| PassMark | 545 | 575+6% |
Memory & Platform
The Atom E3826 uses the FCBGA1170 socket (PCIe 2.0), while the Celeron U3400 uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Atom E3826 | Celeron U3400 |
|---|---|---|
| Socket | FCBGA1170 | BGA1288 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3L-1066 | — |
| Max RAM Capacity | 8 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 4 | — |
Advanced Features
The Atom E3826 includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Celeron U3400 requires a dedicated GPU.
| Feature | Atom E3826 | Celeron U3400 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel HD Graphics (Bay Trail) | — |
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