CPU
GPU
Pentium 3805U
Celeron M 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 Pentium 3805U is positioned at rank 344 and the Celeron M U3400 is on rank 998, 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 M U3400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 3805U | Celeron M 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 (Broadwell-U (2015) / 14 nm) | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Pentium 3805U | Celeron M 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 Pentium 3805U and Celeron M U3400
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 M U3400
The Celeron M U3400 is manufactured by Intel. It was released in 2007-01-01. It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 2 threads. Max frequency: 1.06 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 512 kB + 2 MB. Memory support: DDR3. Passmark benchmark score: 1,205 points. Launch price was $69.
Processing Power
Both the Pentium 3805U and Celeron M U3400 share an identical 2-core/2-thread configuration. Boost clocks reach 1.9 GHz on the Pentium 3805U versus 1.06 GHz on the Celeron M U3400 — a 56.8% clock advantage for the Pentium 3805U. The Pentium 3805U uses the Broadwell-U (2015) architecture (14 nm), while the Celeron M U3400 uses Arrandale (2010−2011) (32 nm). In PassMark, the Pentium 3805U scores 1,196 against the Celeron M U3400's 1,205 — a 0.7% lead for the Celeron M U3400. L3 cache: 2 MB (total) on the Pentium 3805U vs 2 MB on the Celeron M U3400.
| Feature | Pentium 3805U | Celeron M U3400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.9 GHz+79% | 1.06 GHz |
| Base Clock | 1.9 GHz | — |
| L3 Cache | 2 MB (total) | 2 MB |
| L2 Cache | 256K (per core) | 512 kB+100% |
| Process | 14 nm-56% | 32 nm |
| Architecture | Broadwell-U (2015) | Arrandale (2010−2011) |
| PassMark | 1,196 | 1,205 |
Memory & Platform
The Pentium 3805U uses the FCBGA1168 socket (PCIe 3.0), while the Celeron M U3400 uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium 3805U | Celeron M U3400 |
|---|---|---|
| Socket | FCBGA1168 | BGA1288 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR3L-1600 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 12 | — |
Advanced Features
Virtualization: VT-x, VT-d (Pentium 3805U) / not specified (Celeron M U3400). The Pentium 3805U includes integrated graphics (HD Graphics (Broadwell)), while the Celeron M U3400 requires a dedicated GPU. Primary use case: Pentium 3805U targets Mobile.
| Feature | Pentium 3805U | Celeron M U3400 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | HD Graphics (Broadwell) | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Mobile | — |
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