Phenom II X3 P820 vs Celeron 4305U
Phenom II X3 P820
Celeron 4305U
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 Phenom II X3 P820 is positioned at rank 419 and the Celeron 4305U is on rank 109, so the Celeron 4305U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Phenom II X3 P820
Performance Per Dollar Celeron 4305U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X3 P820 | Celeron 4305U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($107) |
| Longevity | 🛑 Legacy (Champlain (2010−2011) / 45 nm) | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) |
💎 Value Proposition
| Insight | Phenom II X3 P820 | Celeron 4305U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($107) |
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 Phenom II X3 P820 and Celeron 4305U
Phenom II X3 P820
The Phenom II X3 P820 is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 3 cores and 3 threads. Max frequency: 1.8 GHz. L2 cache: 1.5 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1.5 MB. Memory support: DDR3. Passmark benchmark score: 1,560 points. Launch price was $149.
Celeron 4305U
The Celeron 4305U is manufactured by Intel. It was released in 16 April 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 2.2 GHz, with boost up to 2.2 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: DDR4-2133, LPDDR3-1866. Passmark benchmark score: 1,562 points. Launch price was $107.
Processing Power
The Phenom II X3 P820 packs 3 cores / 3 threads, while the Celeron 4305U offers 2 cores / 2 threads — the Phenom II X3 P820 has 1 more core. Boost clocks reach 1.8 GHz on the Phenom II X3 P820 versus 2.2 GHz on the Celeron 4305U — a 20% clock advantage for the Celeron 4305U. The Phenom II X3 P820 uses the Champlain (2010−2011) architecture (45 nm), while the Celeron 4305U uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Phenom II X3 P820 scores 1,560 against the Celeron 4305U's 1,562 — a 0.1% lead for the Celeron 4305U.
| Feature | Phenom II X3 P820 | Celeron 4305U |
|---|---|---|
| Cores / Threads | 3 / 3+50% | 2 / 2 |
| Boost Clock | 1.8 GHz | 2.2 GHz+22% |
| Base Clock | — | 2.2 GHz |
| L3 Cache | — | 2 MB (total) |
| L2 Cache | 1.5 MB+500% | 256 kB (per core) |
| Process | 45 nm | 14 nm-69% |
| Architecture | Champlain (2010−2011) | Whiskey Lake-U (2018−2019) |
| PassMark | 1,560 | 1,562 |
Memory & Platform
The Phenom II X3 P820 uses the S1 socket (PCIe 2.0), while the Celeron 4305U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Phenom II X3 P820 | Celeron 4305U |
|---|---|---|
| Socket | S1 | FCBGA1528 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | — | 2133 |
| Max RAM Capacity | — | 64 |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Phenom II X3 P820) / true (Celeron 4305U). The Celeron 4305U includes integrated graphics (Intel UHD Graphics 610), while the Phenom II X3 P820 requires a dedicated GPU. Primary use case: Celeron 4305U targets Budget. Direct competitor: Celeron 4305U rivals Pentium Gold 5405U.
| Feature | Phenom II X3 P820 | Celeron 4305U |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel UHD Graphics 610 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | true |
| Target Use | — | Budget |
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