CPU
GPU
Celeron 3865U
A8-4555M
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 3865U is positioned at rank 645 and the A8-4555M is on rank 826, so the Celeron 3865U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 3865U
Performance Per Dollar A8-4555M
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 3865U | A8-4555M |
|---|---|---|
| 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-U (2017) / 14 nm) | 🛑 Legacy (Trinity (2012−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron 3865U | A8-4555M |
|---|---|---|
| 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 3865U and A8-4555M
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.
A8-4555M
The A8-4555M is manufactured by AMD. It was released in 2014-01-01. It is based on the Trinity (2012−2013) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 2.4 GHz. L3 cache: 0 kB. L2 cache: 4 MB (total). Built on 32 nm process technology. Socket: FP2. Thermal design power (TDP): 19 Watt. Memory support: unknown Dual-channel. Passmark benchmark score: 1,341 points. Launch price was $90.
Processing Power
The Celeron 3865U packs 2 cores / 2 threads, while the A8-4555M offers 4 cores / 4 threads — the A8-4555M has 2 more cores. Boost clocks reach 1.8 GHz on the Celeron 3865U versus 2.4 GHz on the A8-4555M — a 28.6% clock advantage for the A8-4555M (base: 1.8 GHz vs 1.6 GHz). The Celeron 3865U uses the Kaby Lake-U (2017) architecture (14 nm), while the A8-4555M uses Trinity (2012−2013) (32 nm). In PassMark, the Celeron 3865U scores 1,343 against the A8-4555M's 1,341 — a 0.1% lead for the Celeron 3865U. L3 cache: 2 MB (total) on the Celeron 3865U vs 0 kB on the A8-4555M.
| Feature | Celeron 3865U | A8-4555M |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 1.8 GHz | 2.4 GHz+33% |
| Base Clock | 1.8 GHz+12% | 1.6 GHz |
| L3 Cache | 2 MB (total) | 0 kB |
| L2 Cache | 256K (per core) | 4 MB (total)+1500% |
| Process | 14 nm-56% | 32 nm |
| Architecture | Kaby Lake-U (2017) | Trinity (2012−2013) |
| PassMark | 1,343 | 1,341 |
| Geekbench 6 Single | 389 | — |
| Geekbench 6 Multi | 674 | — |
Memory & Platform
The Celeron 3865U uses the BGA1356 socket (PCIe 3.0), while the A8-4555M uses FP2 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 / LPDDR3-1866 on the Celeron 3865U versus 1333 on the A8-4555M — the A8-4555M supports 198.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 3865U supports up to 32 GB of RAM compared to 16 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 10 (Celeron 3865U) vs 16 (A8-4555M) — the A8-4555M offers 6 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 100-series,200-series (Celeron 3865U) and FP2 (A8-4555M).
| Feature | Celeron 3865U | A8-4555M |
|---|---|---|
| Socket | BGA1356 | FP2 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2133 / LPDDR3-1866 | 1333+33225% |
| Max RAM Capacity | 32 GB+209715100% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 10 | 16+60% |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x / VT-d / EPT (Celeron 3865U) vs true (A8-4555M). Both include integrated graphics — Intel HD Graphics 610 (Celeron 3865U) and Radeon HD 7600G (A8-4555M) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 3865U targets Entry-level. Direct competitor: Celeron 3865U rivals Pentium Gold 4415U; A8-4555M rivals Core i3-2367M.
| Feature | Celeron 3865U | A8-4555M |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel HD Graphics 610 | Radeon HD 7600G |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x / VT-d / EPT | true |
| Target Use | Entry-level | — |
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