Celeron 4205U vs Celeron 3865U
Celeron 4205U
Celeron 3865U
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 4205U is positioned at rank 152 and the Celeron 3865U is on rank 645, so the Celeron 4205U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 4205U
Performance Per Dollar Celeron 3865U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 4205U | Celeron 3865U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) | ✨ Modern (Kaby Lake-U (2017) / 14 nm) |
💎 Value Proposition
| Insight | Celeron 4205U | Celeron 3865U |
|---|---|---|
| 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 4205U and Celeron 3865U
Celeron 4205U
The Celeron 4205U is manufactured by Intel. It was released in 23 January 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) 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 (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,350 points. Launch price was $107.
Celeron 3865U
The Celeron 3865U is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake-U (2017) 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 (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,343 points. Launch price was $107.
Processing Power
Both the Celeron 4205U and Celeron 3865U share an identical 2-core/2-thread configuration. Boost clocks reach 1.8 GHz on the Celeron 4205U versus 1.8 GHz on the Celeron 3865U — identical boost frequencies (base: 1.8 GHz vs 1.8 GHz). The Celeron 4205U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Celeron 3865U uses Kaby Lake-U (2017) (14 nm). In PassMark, the Celeron 4205U scores 1,350 against the Celeron 3865U's 1,343 — a 0.5% lead for the Celeron 4205U. Geekbench 6 single-core — the metric most relevant to gaming — records 347 vs 389, a 11.4% lead for the Celeron 3865U that directly translates to higher frame rates. Multi-core Geekbench: 585 vs 674 (14.1% advantage for the Celeron 3865U). Both processors carry 2 MB (total) of L3 cache.
| Feature | Celeron 4205U | Celeron 3865U |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.8 GHz | 1.8 GHz |
| Base Clock | 1.8 GHz | 1.8 GHz |
| L3 Cache | 2 MB (total) | 2 MB (total) |
| L2 Cache | 256 kB (per core) | 256K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Whiskey Lake-U (2018−2019) | Kaby Lake-U (2017) |
| PassMark | 1,350 | 1,343 |
| Geekbench 6 Single | 347 | 389+12% |
| Geekbench 6 Multi | 585 | 674+15% |
Memory & Platform
The Celeron 4205U uses the FCBGA1528 socket (PCIe 3.0), while the Celeron 3865U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-2133 memory speed. The Celeron 4205U supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 4205U) vs 10 (Celeron 3865U) — the Celeron 4205U offers 2 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Whiskey Lake-U (Celeron 4205U) and 100-series,200-series (Celeron 3865U).
| Feature | Celeron 4205U | Celeron 3865U |
|---|---|---|
| Socket | FCBGA1528 | BGA1356 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2133 | DDR4-2133 / LPDDR3-1866 |
| Max RAM Capacity | 64 GB+100% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12+20% | 10 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Celeron 4205U) vs VT-x / VT-d / EPT (Celeron 3865U). Both include integrated graphics — UHD Graphics 610 (Celeron 4205U) and Intel HD Graphics 610 (Celeron 3865U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 4205U targets Budget, Celeron 3865U targets Entry-level. Direct competitor: Celeron 4205U rivals Pentium Gold 4417U; Celeron 3865U rivals Pentium Gold 4415U.
| Feature | Celeron 4205U | Celeron 3865U |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | UHD Graphics 610 | Intel HD Graphics 610 |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | VT-x / VT-d / EPT |
| Target Use | Budget | Entry-level |
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