CPU
GPU
Xeon L5420
Pentium 4405U
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 Xeon L5420 is positioned at rank 847 and the Pentium 4405U is on rank 528, so the Pentium 4405U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon L5420
Performance Per Dollar Pentium 4405U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5420 | Pentium 4405U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) | 🛑 Legacy (NetBurst (2000−2006) / 14 nm) |
💎 Value Proposition
| Insight | Xeon L5420 | Pentium 4405U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Xeon L5420 and Pentium 4405U
Xeon L5420
The Xeon L5420 is manufactured by Intel. It was released in 25 March 2008 (17 years ago). It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 12 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 50 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,143 points. Launch price was $380.
Pentium 4405U
The Pentium 4405U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 2,122 points. Launch price was $161.
Processing Power
The Xeon L5420 packs 4 cores / 4 threads, while the Pentium 4405U offers 2 cores / 4 threads — the Xeon L5420 has 2 more cores. Boost clocks reach 2.5 GHz on the Xeon L5420 versus 2.1 GHz on the Pentium 4405U — a 17.4% clock advantage for the Xeon L5420 (base: 2.5 GHz vs 2.1 GHz). The Xeon L5420 uses the Harpertown (2007−2008) architecture (45 nm), while the Pentium 4405U uses NetBurst (2000−2006) (14 nm). In PassMark, the Xeon L5420 scores 2,143 against the Pentium 4405U's 2,122 — a 1% lead for the Xeon L5420. L3 cache: 12 MB L2 Cache on the Xeon L5420 vs 2 MB on the Pentium 4405U.
| Feature | Xeon L5420 | Pentium 4405U |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 4 |
| Boost Clock | 2.5 GHz+19% | 2.1 GHz |
| Base Clock | 2.5 GHz+19% | 2.1 GHz |
| L3 Cache | 12 MB L2 Cache+500% | 2 MB |
| L2 Cache | 6 MB (total)+1100% | 512 kB |
| Process | 45 nm | 14 nm-69% |
| Architecture | Harpertown (2007−2008) | NetBurst (2000−2006) |
| PassMark | 2,143 | 2,122 |
Memory & Platform
The Xeon L5420 uses the LGA771 socket (PCIe 2.0), while the Pentium 4405U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon L5420 | Pentium 4405U |
|---|---|---|
| Socket | LGA771 | BGA1356 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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