CPU
GPU
Celeron M 585
Core 2 Extreme X9100
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 M 585 is positioned at rank 430 and the Core 2 Extreme X9100 is on rank 277, so the Core 2 Extreme X9100 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron M 585
Performance Per Dollar Core 2 Extreme X9100
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron M 585 | Core 2 Extreme X9100 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($851) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Penryn XE (2008) / 45 nm) |
💎 Value Proposition
| Insight | Celeron M 585 | Core 2 Extreme X9100 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($851) |
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 M 585 and Core 2 Extreme X9100
Celeron M 585
The Celeron M 585 is manufactured by Intel. It was released in 20 August 2008 (17 years ago). It is based on the Merom (2006−2008) architecture. It features 1 cores and 1 threads. Max frequency: 2.16 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 2,062 points. Launch price was $70.
Core 2 Extreme X9100
The Core 2 Extreme X9100 is manufactured by Intel. It was released in 1 July 2008 (17 years ago). It is based on the Penryn XE (2008) architecture. It features 2 cores and 2 threads. Base frequency is 3.06 GHz, with boost up to 0.07 GHz. L3 cache: 0 kB. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,063 points. Launch price was $851.
Processing Power
The Celeron M 585 packs 1 cores / 1 threads, while the Core 2 Extreme X9100 offers 2 cores / 2 threads — the Core 2 Extreme X9100 has 1 more core. Boost clocks reach 2.16 GHz on the Celeron M 585 versus 0.07 GHz on the Core 2 Extreme X9100 — a 187.4% clock advantage for the Celeron M 585. The Celeron M 585 uses the Merom (2006−2008) architecture (65 nm), while the Core 2 Extreme X9100 uses Penryn XE (2008) (45 nm). In PassMark, the Celeron M 585 scores 2,062 against the Core 2 Extreme X9100's 2,063 — a 0% lead for the Core 2 Extreme X9100.
| Feature | Celeron M 585 | Core 2 Extreme X9100 |
|---|---|---|
| Cores / Threads | 1 / 1 | 2 / 2+100% |
| Boost Clock | 2.16 GHz+2986% | 0.07 GHz |
| Base Clock | — | 3.06 GHz |
| L3 Cache | — | 0 kB |
| L2 Cache | 1 MB | 6 MB+500% |
| Process | 65 nm | 45 nm-31% |
| Architecture | Merom (2006−2008) | Penryn XE (2008) |
| PassMark | 2,062 | 2,063 |
Memory & Platform
Both processors use the PGA478 socket with PCIe 1.1.
| Feature | Celeron M 585 | Core 2 Extreme X9100 |
|---|---|---|
| Socket | PGA478 | PGA478 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | 800 | — |
| Max RAM Capacity | 4 | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: false (Celeron M 585) / not specified (Core 2 Extreme X9100). Direct competitor: Celeron M 585 rivals Mobile Sempron SI-40.
| Feature | Celeron M 585 | Core 2 Extreme X9100 |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | false | — |
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