Phenom II X3 P820 vs Core 2 Duo E7300
Phenom II X3 P820
Core 2 Duo E7300
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 Core 2 Duo E7300 is on rank 969, so the Phenom II X3 P820 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 Core 2 Duo E7300
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X3 P820 | Core 2 Duo E7300 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($133) |
| Longevity | 🛑 Legacy (Champlain (2010−2011) / 45 nm) | 🛑 Legacy (Wolfdale (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | Phenom II X3 P820 | Core 2 Duo E7300 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($133) |
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 Core 2 Duo E7300
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.
Core 2 Duo E7300
The Core 2 Duo E7300 is manufactured by Intel. It was released in 2008-01-01. It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 2.66 GHz, with boost up to 2.67 GHz. L3 cache: 0 kB. L2 cache: 3 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,555 points. Launch price was $249.
Processing Power
The Phenom II X3 P820 packs 3 cores / 3 threads, while the Core 2 Duo E7300 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 2.67 GHz on the Core 2 Duo E7300 — a 38.9% clock advantage for the Core 2 Duo E7300. The Phenom II X3 P820 uses the Champlain (2010−2011) architecture (45 nm), while the Core 2 Duo E7300 uses Wolfdale (2008−2010) (45 nm). In PassMark, the Phenom II X3 P820 scores 1,560 against the Core 2 Duo E7300's 1,555 — a 0.3% lead for the Phenom II X3 P820.
| Feature | Phenom II X3 P820 | Core 2 Duo E7300 |
|---|---|---|
| Cores / Threads | 3 / 3+50% | 2 / 2 |
| Boost Clock | 1.8 GHz | 2.67 GHz+48% |
| Base Clock | — | 2.66 GHz |
| L3 Cache | — | 0 kB |
| L2 Cache | 1.5 MB | 3 MB (total)+100% |
| Process | 45 nm | 45 nm |
| Architecture | Champlain (2010−2011) | Wolfdale (2008−2010) |
| PassMark | 1,560 | 1,555 |
| Geekbench 6 Single | — | 412 |
| Geekbench 6 Multi | — | 725 |
Memory & Platform
The Phenom II X3 P820 uses the S1 socket (PCIe 2.0), while the Core 2 Duo E7300 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Phenom II X3 P820 | Core 2 Duo E7300 |
|---|---|---|
| Socket | S1 | LGA775 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | — | DDR2-800 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Phenom II X3 P820) / VT-x (Core 2 Duo E7300). Primary use case: Core 2 Duo E7300 targets Legacy Desktop. Direct competitor: Core 2 Duo E7300 rivals Athlon II X2 245.
| Feature | Phenom II X3 P820 | Core 2 Duo E7300 |
|---|---|---|
| Integrated GPU | — | No |
| IGPU Model | — | None |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | VT-x |
| Target Use | — | Legacy Desktop |
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