
Core 2 Duo E6550

Pentium 3825U
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 E6550 is positioned at rank 1022 and the Pentium 3825U is on rank 886, so the Pentium 3825U 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 E6550
Performance Per Dollar Pentium 3825U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo E6550 | Pentium 3825U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($20) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Conroe (2006−2007) / 65 nm) | 🛑 Legacy (Broadwell-U (2015) / 14 nm) |
💎 Value Proposition
| Insight | Core 2 Duo E6550 | Pentium 3825U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($20) | ✅ 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.

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Technical Specifications
Side-by-side comparison of Core 2 Duo E6550 and Pentium 3825U

Core 2 Duo E6550
The Core 2 Duo E6550 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 2.33 GHz, with boost up to 2.33 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: 1,395 points. Launch price was $249.

Pentium 3825U
The Pentium 3825U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 4 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 1,396 points. Launch price was $161.
Processing Power
The Core 2 Duo E6550 packs 2 cores / 2 threads, matching the Pentium 3825U's 2 cores. Boost clocks reach 2.33 GHz on the Core 2 Duo E6550 versus 1.9 GHz on the Pentium 3825U — a 20.3% clock advantage for the Core 2 Duo E6550 (base: 2.33 GHz vs 1.9 GHz). The Core 2 Duo E6550 uses the Conroe (2006−2007) architecture (65 nm), while the Pentium 3825U uses Broadwell-U (2015) (14 nm). In PassMark, the Core 2 Duo E6550 scores 1,395 against the Pentium 3825U's 1,396 — a 0.1% lead for the Pentium 3825U. L3 cache: 0 kB on the Core 2 Duo E6550 vs 2 MB (total) on the Pentium 3825U.
| Feature | Core 2 Duo E6550 | Pentium 3825U |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 2.33 GHz+23% | 1.9 GHz |
| Base Clock | 2.33 GHz+23% | 1.9 GHz |
| L3 Cache | 0 kB | 2 MB (total) |
| L2 Cache | 4 MB+1500% | 256K (per core) |
| Process | 65 nm | 14 nm-78% |
| Architecture | Conroe (2006−2007) | Broadwell-U (2015) |
| PassMark | 1,395 | 1,396 |
Memory & Platform
The Core 2 Duo E6550 uses the LGA775 socket (PCIe 1.1), while the Pentium 3825U uses FCBGA1168 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core 2 Duo E6550 | Pentium 3825U |
|---|---|---|
| Socket | LGA775 | FCBGA1168 |
| PCIe Generation | PCIe 1.1 | PCIe 3.0+173% |
| Max RAM Speed | 1333 | — |
| Max RAM Capacity | 16 | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: true (Core 2 Duo E6550) / not specified (Pentium 3825U). Direct competitor: Core 2 Duo E6550 rivals Athlon 64 X2 6000+.
| Feature | Core 2 Duo E6550 | Pentium 3825U |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | true | — |
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