Xeon L5408 vs Celeron G1840
Xeon L5408
Celeron G1840
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 Celeron G1840 is on rank 420, so the Celeron G1840 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 Celeron G1840
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5408 | Celeron G1840 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($30) |
| Longevity | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) | 🛑 Legacy (Haswell (2013−2015) / 22 nm) |
💎 Value Proposition
| Insight | Xeon L5408 | Celeron G1840 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($30) |
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 Celeron G1840
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.
Celeron G1840
The Celeron G1840 is manufactured by Intel. It was released in 1 May 2014 (11 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 53 Watt. Memory support: DDR3. Passmark benchmark score: 1,784 points. Launch price was $53.
Processing Power
The Xeon L5408 packs 4 cores / 4 threads, while the Celeron G1840 offers 2 cores / 2 threads — the Xeon L5408 has 2 more cores. Boost clocks reach 0.13 GHz on the Xeon L5408 versus 2.8 GHz on the Celeron G1840 — a 182.3% clock advantage for the Celeron G1840 (base: 2.133 GHz vs 2.8 GHz). The Xeon L5408 uses the Harpertown (2007−2008) architecture (45 nm), while the Celeron G1840 uses Haswell (2013−2015) (22 nm). In PassMark, the Xeon L5408 scores 1,769 against the Celeron G1840's 1,784 — a 0.8% lead for the Celeron G1840.
| Feature | Xeon L5408 | Celeron G1840 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 0.13 GHz | 2.8 GHz+2054% |
| Base Clock | 2.133 GHz | 2.8 GHz+31% |
| L3 Cache | — | 3 MB (total) |
| L2 Cache | 6 MB (total)+2300% | 256 kB (per core) |
| Process | 45 nm | 22 nm-51% |
| Architecture | Harpertown (2007−2008) | Haswell (2013−2015) |
| PassMark | 1,769 | 1,784 |
| Geekbench 6 Single | — | 488 |
| Geekbench 6 Multi | — | 832 |
Memory & Platform
The Xeon L5408 uses the LGA771 socket (PCIe 2.0), while the Celeron G1840 uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon L5408 | Celeron G1840 |
|---|---|---|
| Socket | LGA771 | LGA1150 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | — | DDR3-1333 |
| Max RAM Capacity | — | 32 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Xeon L5408) / VT-x (Celeron G1840). The Celeron G1840 includes integrated graphics (HD Graphics (Haswell)), while the Xeon L5408 requires a dedicated GPU. Primary use case: Celeron G1840 targets Budget. Direct competitor: Celeron G1840 rivals Pentium G3240.
| Feature | Xeon L5408 | Celeron G1840 |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | HD Graphics (Haswell) |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x |
| Target Use | — | Budget |
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