
Pentium 3805U

Celeron J3355
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 Pentium 3805U is positioned at rank 344 and the Celeron J3355 is on rank 425, so the Pentium 3805U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium 3805U
Performance Per Dollar Celeron J3355
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 3805U | Celeron J3355 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Broadwell-U (2015) / 14 nm) | 🛑 Legacy (Apollo Lake (2014−2016) / 14 nm) |
💎 Value Proposition
| Insight | Pentium 3805U | Celeron J3355 |
|---|---|---|
| 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 Pentium 3805U and Celeron J3355

Pentium 3805U
The Pentium 3805U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 1,196 points. Launch price was $161.

Celeron J3355
The Celeron J3355 is manufactured by Intel. It was released in 30 August 2016 (9 years ago). It is based on the Apollo Lake (2014−2016) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2.5 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FCBGA1296. Thermal design power (TDP): 10 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,203 points. Launch price was $107.
Processing Power
Both the Pentium 3805U and Celeron J3355 share an identical 2-core/2-thread configuration. Boost clocks reach 1.9 GHz on the Pentium 3805U versus 2.5 GHz on the Celeron J3355 — a 27.3% clock advantage for the Celeron J3355 (base: 1.9 GHz vs 2 GHz). The Pentium 3805U uses the Broadwell-U (2015) architecture (14 nm), while the Celeron J3355 uses Apollo Lake (2014−2016) (14 nm). In PassMark, the Pentium 3805U scores 1,196 against the Celeron J3355's 1,203 — a 0.6% lead for the Celeron J3355. L3 cache: 2 MB (total) on the Pentium 3805U vs 0 kB on the Celeron J3355.
| Feature | Pentium 3805U | Celeron J3355 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.9 GHz | 2.5 GHz+32% |
| Base Clock | 1.9 GHz | 2 GHz+5% |
| L3 Cache | 2 MB (total) | 0 kB |
| L2 Cache | 256K (per core) | 1 MB+300% |
| Process | 14 nm | 14 nm |
| Architecture | Broadwell-U (2015) | Apollo Lake (2014−2016) |
| PassMark | 1,196 | 1,203 |
| Geekbench 6 Single | — | 450 |
| Geekbench 6 Multi | — | 850 |
Memory & Platform
The Pentium 3805U uses the FCBGA1168 socket (PCIe 3.0), while the Celeron J3355 uses FCBGA1296 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Pentium 3805U versus DDR4-2400 on the Celeron J3355 — the Celeron J3355 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Pentium 3805U supports up to 16 GB of RAM compared to 8 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Pentium 3805U) vs 6 (Celeron J3355) — the Pentium 3805U offers 6 more lanes for additional GPUs or NVMe drives.
| Feature | Pentium 3805U | Celeron J3355 |
|---|---|---|
| Socket | FCBGA1168 | FCBGA1296 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR3L-1600 | DDR4-2400+33% |
| Max RAM Capacity | 16 GB+100% | 8 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12+100% | 6 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Pentium 3805U) vs VT-x (Celeron J3355). Both include integrated graphics — HD Graphics (Broadwell) (Pentium 3805U) and HD Graphics 500 (Celeron J3355) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Pentium 3805U targets Mobile, Celeron J3355 targets Low Power. Direct competitor: Celeron J3355 rivals Pentium J4205.
| Feature | Pentium 3805U | Celeron J3355 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics (Broadwell) | HD Graphics 500 |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | VT-x |
| Target Use | Mobile | Low Power |
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