CPU
GPU
Celeron M 585
Core 2 Duo SL9600
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 Duo SL9600 is on rank 1177, so the Celeron M 585 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 Duo SL9600
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron M 585 | Core 2 Duo SL9600 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($316) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Celeron M 585 | Core 2 Duo SL9600 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($316) |
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 Duo SL9600
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 Duo SL9600
The Core 2 Duo SL9600 is manufactured by Intel. It was released in 1 March 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.13 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: BGA956. Thermal design power (TDP): 17 Watt. Passmark benchmark score: 2,054 points. Launch price was $316.
Processing Power
The Celeron M 585 packs 1 cores / 1 threads, while the Core 2 Duo SL9600 offers 2 cores / 2 threads — the Core 2 Duo SL9600 has 1 more core. Boost clocks reach 2.16 GHz on the Celeron M 585 versus 2.13 GHz on the Core 2 Duo SL9600 — a 1.4% clock advantage for the Celeron M 585. The Celeron M 585 uses the Merom (2006−2008) architecture (65 nm), while the Core 2 Duo SL9600 uses Penryn (2008−2011) (45 nm). In PassMark, the Celeron M 585 scores 2,062 against the Core 2 Duo SL9600's 2,054 — a 0.4% lead for the Celeron M 585.
| Feature | Celeron M 585 | Core 2 Duo SL9600 |
|---|---|---|
| Cores / Threads | 1 / 1 | 2 / 2+100% |
| Boost Clock | 2.16 GHz+1% | 2.13 GHz |
| Base Clock | — | 2.13 GHz |
| L3 Cache | — | 6 MB L2 Cache |
| L2 Cache | 1 MB | 6 MB+500% |
| Process | 65 nm | 45 nm-31% |
| Architecture | Merom (2006−2008) | Penryn (2008−2011) |
| PassMark | 2,062 | 2,054 |
Memory & Platform
The Celeron M 585 uses the PGA478 socket (PCIe 1.1), while the Core 2 Duo SL9600 uses BGA956 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 800 on the Celeron M 585 versus DDR3-1066 on the Core 2 Duo SL9600 — the Celeron M 585 supports 198.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core 2 Duo SL9600 supports up to 8 GB of RAM compared to 4 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: GL40,GM45 (Celeron M 585) and GS45,GM45,PM45 (Core 2 Duo SL9600).
| Feature | Celeron M 585 | Core 2 Duo SL9600 |
|---|---|---|
| Socket | PGA478 | BGA956 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | 800+26567% | DDR3-1066 |
| Max RAM Capacity | 4 | 8 GB+209715100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Neither processor supports overclocking. Virtualization support: false (Celeron M 585) vs VT-x, VT-d (Core 2 Duo SL9600). Primary use case: Core 2 Duo SL9600 targets Mobile. Direct competitor: Celeron M 585 rivals Mobile Sempron SI-40.
| Feature | Celeron M 585 | Core 2 Duo SL9600 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | false | VT-x, VT-d |
| Target Use | — | Mobile |
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