
Xeon L5408 vs Pentium Dual Core T2390

Xeon L5408

Pentium Dual Core T2390
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 L5408 is positioned at rank 901 and the Pentium Dual Core T2390 is on rank 863, so the Pentium Dual Core T2390 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon L5408
Performance Per Dollar Pentium Dual Core T2390
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5408 | Pentium Dual Core T2390 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
| Longevity | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) | 🛑 Legacy (NetBurst (2000−2006) / 65 nm) |
💎 Value Proposition
| Insight | Xeon L5408 | Pentium Dual Core T2390 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($5) |
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 L5408 and Pentium Dual Core T2390

Xeon L5408
The Xeon L5408 is manufactured by Intel. It was released in 2015-01-01. It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2.133 GHz, with boost up to 0.13 GHz. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 40 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 1,769 points. Launch price was $800.

Pentium Dual Core T2390
The Pentium Dual Core T2390 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Max frequency: 1.86 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,771 points. Launch price was $69.
Processing Power
The Xeon L5408 packs 4 cores / 4 threads, while the Pentium Dual Core T2390 offers 2 cores / 2 threads — the Xeon L5408 has 2 more cores. Boost clocks reach 0.13 GHz on the Xeon L5408 versus 1.86 GHz on the Pentium Dual Core T2390 — a 173.9% clock advantage for the Pentium Dual Core T2390. The Xeon L5408 uses the Harpertown (2007−2008) architecture (45 nm), while the Pentium Dual Core T2390 uses NetBurst (2000−2006) (65 nm). In PassMark, the Xeon L5408 scores 1,769 against the Pentium Dual Core T2390's 1,771 — a 0.1% lead for the Pentium Dual Core T2390.
| Feature | Xeon L5408 | Pentium Dual Core T2390 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 0.13 GHz | 1.86 GHz+1331% |
| Base Clock | 2.133 GHz | — |
| L2 Cache | 6 MB (total)+500% | 1 MB |
| Process | 45 nm-31% | 65 nm |
| Architecture | Harpertown (2007−2008) | NetBurst (2000−2006) |
| PassMark | 1,769 | 1,771 |
Memory & Platform
The Xeon L5408 uses the LGA771 socket (PCIe 2.0), while the Pentium Dual Core T2390 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Xeon L5408 | Pentium Dual Core T2390 |
|---|---|---|
| Socket | LGA771 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
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