Pentium 4405U vs Xeon L5420
Pentium 4405U
Xeon L5420
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 Pentium 4405U is positioned at rank 528 and the Xeon L5420 is on rank 847, 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 Pentium 4405U
Performance Per Dollar Xeon L5420
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium 4405U | Xeon L5420 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (NetBurst (2000−2006) / 14 nm) | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) |
💎 Value Proposition
| Insight | Pentium 4405U | Xeon L5420 |
|---|---|---|
| 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 Pentium 4405U and Xeon L5420
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.
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.
Processing Power
The Pentium 4405U packs 2 cores / 4 threads, while the Xeon L5420 offers 4 cores / 4 threads — the Xeon L5420 has 2 more cores. Boost clocks reach 2.1 GHz on the Pentium 4405U versus 2.5 GHz on the Xeon L5420 — a 17.4% clock advantage for the Xeon L5420 (base: 2.1 GHz vs 2.5 GHz). The Pentium 4405U uses the NetBurst (2000−2006) architecture (14 nm), while the Xeon L5420 uses Harpertown (2007−2008) (45 nm). In PassMark, the Pentium 4405U scores 2,122 against the Xeon L5420's 2,143 — a 1% lead for the Xeon L5420. L3 cache: 2 MB on the Pentium 4405U vs 12 MB L2 Cache on the Xeon L5420.
| Feature | Pentium 4405U | Xeon L5420 |
|---|---|---|
| Cores / Threads | 2 / 4 | 4 / 4+100% |
| Boost Clock | 2.1 GHz | 2.5 GHz+19% |
| Base Clock | 2.1 GHz | 2.5 GHz+19% |
| L3 Cache | 2 MB | 12 MB L2 Cache+500% |
| L2 Cache | 512 kB | 6 MB (total)+1100% |
| Process | 14 nm-69% | 45 nm |
| Architecture | NetBurst (2000−2006) | Harpertown (2007−2008) |
| PassMark | 2,122 | 2,143 |
Memory & Platform
The Pentium 4405U uses the BGA1356 socket (PCIe 3.0), while the Xeon L5420 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium 4405U | Xeon L5420 |
|---|---|---|
| Socket | BGA1356 | LGA771 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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