CPU
GPU
Celeron 3865U
Phenom X4 9100e
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 Phenom X4 9100e is on rank 453, so the Phenom X4 9100e 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 Phenom X4 9100e
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 3865U | Phenom X4 9100e |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($35) |
| Longevity | ✨ Modern (Kaby Lake-U (2017) / 14 nm) | 🛑 Legacy (Agena (2007−2008) / 65 nm) |
💎 Value Proposition
| Insight | Celeron 3865U | Phenom X4 9100e |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($35) |
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 Phenom X4 9100e
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.
Phenom X4 9100e
The Phenom X4 9100e is manufactured by AMD. It was released in 2009-01-01. It is based on the Agena (2007−2008) architecture. It features 4 cores and 4 threads. Max frequency: 1.8 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,353 points. Launch price was $149.
Processing Power
The Celeron 3865U packs 2 cores / 2 threads, while the Phenom X4 9100e offers 4 cores / 4 threads — the Phenom X4 9100e has 2 more cores. Boost clocks reach 1.8 GHz on the Celeron 3865U versus 1.8 GHz on the Phenom X4 9100e — identical boost frequencies. The Celeron 3865U uses the Kaby Lake-U (2017) architecture (14 nm), while the Phenom X4 9100e uses Agena (2007−2008) (65 nm). In PassMark, the Celeron 3865U scores 1,343 against the Phenom X4 9100e's 1,353 — a 0.7% lead for the Phenom X4 9100e. Both processors carry 2 MB (total) of L3 cache.
| Feature | Celeron 3865U | Phenom X4 9100e |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 1.8 GHz | 1.8 GHz |
| Base Clock | 1.8 GHz | — |
| L3 Cache | 2 MB (total) | 2 MB (total) |
| L2 Cache | 256K (per core) | 512 kB (per core)+100% |
| Process | 14 nm-78% | 65 nm |
| Architecture | Kaby Lake-U (2017) | Agena (2007−2008) |
| PassMark | 1,343 | 1,353 |
| Geekbench 6 Single | 389 | — |
| Geekbench 6 Multi | 674 | — |
Memory & Platform
The Celeron 3865U uses the BGA1356 socket (PCIe 3.0), while the Phenom X4 9100e uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Celeron 3865U | Phenom X4 9100e |
|---|---|---|
| Socket | BGA1356 | AM2+ |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2133 / LPDDR3-1866 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 10 | — |
Advanced Features
Virtualization: VT-x / VT-d / EPT (Celeron 3865U) / not specified (Phenom X4 9100e). The Celeron 3865U includes integrated graphics (Intel HD Graphics 610), while the Phenom X4 9100e requires a dedicated GPU. Primary use case: Celeron 3865U targets Entry-level. Direct competitor: Celeron 3865U rivals Pentium Gold 4415U.
| Feature | Celeron 3865U | Phenom X4 9100e |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel HD Graphics 610 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x / VT-d / EPT | — |
| Target Use | Entry-level | — |
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