Core 2 Duo P8400 vs Xeon L7455
Core 2 Duo P8400
Xeon L7455
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 P8400 is positioned at rank 33 and the Xeon L7455 is on rank 793, so the Core 2 Duo P8400 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 P8400
Performance Per Dollar Xeon L7455
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo P8400 | Xeon L7455 |
|---|---|---|
| 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 (Penryn (2008−2011) / 45 nm) | 🛑 Legacy (Legacy / 45 nm) |
💎 Value Proposition
| Insight | Core 2 Duo P8400 | Xeon L7455 |
|---|---|---|
| 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 P8400 and Xeon L7455
Core 2 Duo P8400
The Core 2 Duo P8400 is manufactured by Intel. It was released in 15 July 2008 (17 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.26 GHz, with boost up to 2.26 GHz. L3 cache: 3 MB L2 Cache. L2 cache: 3 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 25 Watt. Passmark benchmark score: 2,497 points. Launch price was $209.
Xeon L7455
The Xeon L7455 is manufactured by Intel. It was released in 2015-01-01. Base frequency: 2.13 GHz. L3 cache: 12 MB L2 Cache. Built on 45 nm process technology. Socket: PGA604. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 2,494 points. Launch price was $800.
Processing Power
The Core 2 Duo P8400 is built on the Penryn (2008−2011) architecture. In PassMark, the Core 2 Duo P8400 scores 2,497 against the Xeon L7455's 2,494 — a 0.1% lead for the Core 2 Duo P8400. L3 cache: 3 MB L2 Cache on the Core 2 Duo P8400 vs 12 MB L2 Cache on the Xeon L7455.
| Feature | Core 2 Duo P8400 | Xeon L7455 |
|---|---|---|
| Cores / Threads | 2 / 2 | — |
| Boost Clock | 2.26 GHz | — |
| Base Clock | 2.26 GHz+6% | 2.13 GHz |
| L3 Cache | 3 MB L2 Cache | 12 MB L2 Cache+300% |
| L2 Cache | 3 MB | — |
| Process | 45 nm | 45 nm |
| Architecture | Penryn (2008−2011) | — |
| PassMark | 2,497 | 2,494 |
Memory & Platform
The Core 2 Duo P8400 uses the PGA478 socket (PCIe 1.1), while the Xeon L7455 uses PGA604 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core 2 Duo P8400 | Xeon L7455 |
|---|---|---|
| Socket | PGA478 | PGA604 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | 1066 | — |
| Max RAM Capacity | 8 | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: true (Core 2 Duo P8400) / not specified (Xeon L7455). Direct competitor: Core 2 Duo P8400 rivals Turion II Ultra M600.
| Feature | Core 2 Duo P8400 | Xeon L7455 |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | true | — |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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