CPU
GPU
Core 2 Duo E6420
Phenom II X2 545
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 Core 2 Duo E6420 is positioned at rank 1054 and the Phenom II X2 545 is on rank 490, so the Phenom II X2 545 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core 2 Duo E6420
Performance Per Dollar Phenom II X2 545
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo E6420 | Phenom II X2 545 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Conroe (2006−2007) / 65 nm) | 🛑 Legacy (Callisto (2009−2010) / 45 nm) |
💎 Value Proposition
| Insight | Core 2 Duo E6420 | Phenom II X2 545 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
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 Core 2 Duo E6420 and Phenom II X2 545
Core 2 Duo E6420
The Core 2 Duo E6420 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.13 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,235 points. Launch price was $249.
Phenom II X2 545
The Phenom II X2 545 is manufactured by AMD. It was released in 1 June 2009 (16 years ago). It is based on the Callisto (2009−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3 GHz, with boost up to 3 GHz. L3 cache: 6 MB (per core). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,233 points. Launch price was $50.
Processing Power
Both the Core 2 Duo E6420 and Phenom II X2 545 share an identical 2-core/2-thread configuration. Boost clocks reach 2.13 GHz on the Core 2 Duo E6420 versus 3 GHz on the Phenom II X2 545 — a 33.9% clock advantage for the Phenom II X2 545 (base: 2.13 GHz vs 3 GHz). The Core 2 Duo E6420 uses the Conroe (2006−2007) architecture (65 nm), while the Phenom II X2 545 uses Callisto (2009−2010) (45 nm). In PassMark, the Core 2 Duo E6420 scores 1,235 against the Phenom II X2 545's 1,233 — a 0.2% lead for the Core 2 Duo E6420. L3 cache: 0 kB on the Core 2 Duo E6420 vs 6 MB (per core) on the Phenom II X2 545.
| Feature | Core 2 Duo E6420 | Phenom II X2 545 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.13 GHz | 3 GHz+41% |
| Base Clock | 2.13 GHz | 3 GHz+41% |
| L3 Cache | 0 kB | 6 MB (per core) |
| L2 Cache | 4 MB+700% | 512 kB (per core) |
| Process | 65 nm | 45 nm-31% |
| Architecture | Conroe (2006−2007) | Callisto (2009−2010) |
| PassMark | 1,235 | 1,233 |
Memory & Platform
The Core 2 Duo E6420 uses the LGA775 socket (PCIe 1.1), while the Phenom II X2 545 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core 2 Duo E6420 | Phenom II X2 545 |
|---|---|---|
| Socket | LGA775 | AM3 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | 1066 | — |
| Max RAM Capacity | 16 | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: true (Core 2 Duo E6420) / not specified (Phenom II X2 545). Direct competitor: Core 2 Duo E6420 rivals Athlon 64 X2 5400+.
| Feature | Core 2 Duo E6420 | Phenom II X2 545 |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | true | — |
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