Celeron 440 vs Xeon 2.66
Celeron 440
Xeon 2.66
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 Celeron 440 is positioned at rank 1031 and the Xeon 2.66 is on rank 1028, so the Xeon 2.66 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 440
Performance Per Dollar Xeon 2.66
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 440 | Xeon 2.66 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Conroe-L (2007−2008) / 65 nm) | 🛑 Legacy (Prestonia (2002) / 130 nm) |
💎 Value Proposition
| Insight | Celeron 440 | Xeon 2.66 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+6%) | ❌ 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 Celeron 440 and Xeon 2.66
Celeron 440
The Celeron 440 is manufactured by Intel. It was released in 3 June 2007 (18 years ago). It is based on the Conroe-L (2007−2008) architecture. It features 1 cores and 1 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 35 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 472 points. Launch price was $40.
Xeon 2.66
The Xeon 2.66 is manufactured by Intel. It was released in 2015-01-01. It is based on the Prestonia (2002) architecture. It features 1 cores and 1 threads. Max frequency: 2.66 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA604. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 445 points. Launch price was $800.
Processing Power
Both the Celeron 440 and Xeon 2.66 share an identical 1-core/1-thread configuration. Boost clocks reach 2 GHz on the Celeron 440 versus 2.66 GHz on the Xeon 2.66 — a 28.3% clock advantage for the Xeon 2.66. The Celeron 440 uses the Conroe-L (2007−2008) architecture (65 nm), while the Xeon 2.66 uses Prestonia (2002) (130 nm). In PassMark, the Celeron 440 scores 472 against the Xeon 2.66's 445 — a 5.9% lead for the Celeron 440. Both processors carry 0 kB of L3 cache.
| Feature | Celeron 440 | Xeon 2.66 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 2 GHz | 2.66 GHz+33% |
| Base Clock | 2 GHz | — |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB | 512 kB |
| Process | 65 nm-50% | 130 nm |
| Architecture | Conroe-L (2007−2008) | Prestonia (2002) |
| PassMark | 472+6% | 445 |
| Geekbench 6 Single | 244 | — |
Memory & Platform
The Celeron 440 uses the LGA775 socket (PCIe 1.1), while the Xeon 2.66 uses PGA604 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Celeron 440 | Xeon 2.66 |
|---|---|---|
| Socket | LGA775 | PGA604 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR2-800 | — |
| Max RAM Capacity | 4 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: No (Celeron 440) / not specified (Xeon 2.66). Primary use case: Celeron 440 targets Budget. Direct competitor: Celeron 440 rivals Pentium 4 2.80.
| Feature | Celeron 440 | Xeon 2.66 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | No | — |
| Target Use | Budget | — |
Value Analysis
The Celeron 440 launched at $59 MSRP, while the Xeon 2.66 debuted at $337. At current prices ($10 vs $10), the Xeon 2.66 is $0 cheaper. In terms of value (PassMark points per dollar), the Celeron 440 delivers 47.2 pts/$ vs 44.5 pts/$ for the Xeon 2.66 — making the Celeron 440 the 5.9% better value option.
| Feature | Celeron 440 | Xeon 2.66 |
|---|---|---|
| MSRP | $59-82% | $337 |
| Avg Price (30d) | $10 | $10 |
| Performance per Dollar | 47.2+6% | 44.5 |
| Release Date | 2007 | 2002 |
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