Celeron U3400 vs Atom S1260
Celeron U3400
Atom S1260
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 Celeron U3400 is positioned at rank 1172 and the Atom S1260 is on rank 749, so the Atom S1260 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron U3400
Performance Per Dollar Atom S1260
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron U3400 | Atom S1260 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($5) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Westmere (2010−2011) / 32 nm) | 🛑 Legacy (Centerton (2012) / 32 nm) |
💎 Value Proposition
| Insight | Celeron U3400 | Atom S1260 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($5) | ✅ 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 Celeron U3400 and Atom S1260
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.
Atom S1260
The Atom S1260 is manufactured by Intel. It was released in 11 December 2012 (12 years ago). It is based on the Centerton (2012) architecture. It features 2 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 32 nm process technology. Socket: FCBGA1283. Thermal design power (TDP): 8.5 Watt. Memory support: DDR3. Passmark benchmark score: 555 points. Launch price was $64.
Processing Power
The Celeron U3400 packs 2 cores / 2 threads, matching the Atom S1260's 2 cores. Boost clocks reach 0.07 GHz on the Celeron U3400 versus 2 GHz on the Atom S1260 — a 186.5% clock advantage for the Atom S1260 (base: 1.06 GHz vs 2 GHz). The Celeron U3400 uses the Westmere (2010−2011) architecture (32 nm), while the Atom S1260 uses Centerton (2012) (32 nm). In PassMark, the Celeron U3400 scores 575 against the Atom S1260's 555 — a 3.5% lead for the Celeron U3400. L3 cache: 2 MB on the Celeron U3400 vs 0 kB on the Atom S1260.
| Feature | Celeron U3400 | Atom S1260 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 0.07 GHz | 2 GHz+2757% |
| Base Clock | 1.06 GHz | 2 GHz+89% |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | 512 kB | 512 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Westmere (2010−2011) | Centerton (2012) |
| PassMark | 575+4% | 555 |
Memory & Platform
The Celeron U3400 uses the BGA1288 socket (PCIe 2.0), while the Atom S1260 uses FCBGA1283 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Celeron U3400 | Atom S1260 |
|---|---|---|
| Socket | BGA1288 | FCBGA1283 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 1 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 8 |
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