
Celeron 3867U vs Celeron 3955U

Celeron 3867U

Celeron 3955U
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 3867U is positioned at rank 132 and the Celeron 3955U is on rank 616, so the Celeron 3867U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 3867U
Performance Per Dollar Celeron 3955U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 3867U | Celeron 3955U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Celeron 3867U | Celeron 3955U |
|---|---|---|
| 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 Celeron 3867U and Celeron 3955U

Celeron 3867U
The Celeron 3867U is manufactured by Intel. It was released in 1 March 2019 (6 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 2 cores and 2 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,449 points. Launch price was $107.

Celeron 3955U
The Celeron 3955U is manufactured by Intel. It was released in 15 August 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600. Passmark benchmark score: 1,443 points. Launch price was $107.
Processing Power
Both the Celeron 3867U and Celeron 3955U share an identical 2-core/2-thread configuration. Boost clocks reach 1.8 GHz on the Celeron 3867U versus 2 GHz on the Celeron 3955U — a 10.5% clock advantage for the Celeron 3955U (base: 1.8 GHz vs 2 GHz). The Celeron 3867U uses the Kaby Lake (2016−2019) architecture (14 nm), while the Celeron 3955U uses Skylake (2015−2016) (14 nm). In PassMark, the Celeron 3867U scores 1,449 against the Celeron 3955U's 1,443 — a 0.4% lead for the Celeron 3867U. Both processors carry 2 MB of L3 cache.
| Feature | Celeron 3867U | Celeron 3955U |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.8 GHz | 2 GHz+11% |
| Base Clock | 1.8 GHz | 2 GHz+11% |
| L3 Cache | 2 MB | 2 MB |
| L2 Cache | 512 kB | 512 kB |
| Process | 14 nm | 14 nm |
| Architecture | Kaby Lake (2016−2019) | Skylake (2015−2016) |
| PassMark | 1,449 | 1,443 |
| Geekbench 6 Single | — | 431 |
| Geekbench 6 Multi | — | 741 |
Memory & Platform
Both processors use the BGA1356 socket with PCIe 3.0. Both support up to DDR4-2133 memory speed. Both support up to 32 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 12 PCIe lanes. Chipset compatibility: Kaby Lake-U (Celeron 3867U) and Sunrise Point-LP (Celeron 3955U).
| Feature | Celeron 3867U | Celeron 3955U |
|---|---|---|
| Socket | BGA1356 | BGA1356 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2133 | DDR4-2133 |
| Max RAM Capacity | 32 GB | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12 | 12 |
Advanced Features
Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — HD Graphics 610 (Celeron 3867U) and HD Graphics 510 (Celeron 3955U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 3867U targets Budget, Celeron 3955U targets Budget. Direct competitor: Celeron 3867U rivals Pentium Gold 4417U; Celeron 3955U rivals Pentium 3825U.
| Feature | Celeron 3867U | Celeron 3955U |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics 610 | HD Graphics 510 |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
| Target Use | Budget | Budget |
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