
Xeon X5355 vs Core 2 Duo SL9600

Xeon X5355

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 Xeon X5355 is positioned at rank 1032 and the Core 2 Duo SL9600 is on rank 1177, so the Xeon X5355 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon X5355
Performance Per Dollar Core 2 Duo SL9600
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5355 | Core 2 Duo SL9600 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($4,000) | ✅ More affordable ($316) |
| Longevity | 🛑 Legacy (Clovertown (2006−2007) / 65 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Xeon X5355 | Core 2 Duo SL9600 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+1175%) |
| Upfront Cost | ⚠️ Higher cost ($4,000) | ✅ More affordable ($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 Xeon X5355 and Core 2 Duo SL9600

Xeon X5355
The Xeon X5355 is manufactured by Intel. It was released in 14 November 2006 (19 years ago). It is based on the Clovertown (2006−2007) architecture. It features 4 cores and 4 threads. Base frequency is 2.66 GHz, with boost up to 0.67 GHz. L3 cache: 8 MB L2 Cache. L2 cache: 4 MB (total). Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 120 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,039 points. Launch price was $1,172.

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 Xeon X5355 packs 4 cores / 4 threads, while the Core 2 Duo SL9600 offers 2 cores / 2 threads — the Xeon X5355 has 2 more cores. Boost clocks reach 0.67 GHz on the Xeon X5355 versus 2.13 GHz on the Core 2 Duo SL9600 — a 104.3% clock advantage for the Core 2 Duo SL9600 (base: 2.66 GHz vs 2.13 GHz). The Xeon X5355 uses the Clovertown (2006−2007) architecture (65 nm), while the Core 2 Duo SL9600 uses Penryn (2008−2011) (45 nm). In PassMark, the Xeon X5355 scores 2,039 against the Core 2 Duo SL9600's 2,054 — a 0.7% lead for the Core 2 Duo SL9600. L3 cache: 8 MB L2 Cache on the Xeon X5355 vs 6 MB L2 Cache on the Core 2 Duo SL9600.
| Feature | Xeon X5355 | Core 2 Duo SL9600 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 0.67 GHz | 2.13 GHz+218% |
| Base Clock | 2.66 GHz+25% | 2.13 GHz |
| L3 Cache | 8 MB L2 Cache+33% | 6 MB L2 Cache |
| L2 Cache | 4 MB (total) | 6 MB+50% |
| Process | 65 nm | 45 nm-31% |
| Architecture | Clovertown (2006−2007) | Penryn (2008−2011) |
| PassMark | 2,039 | 2,054 |
Memory & Platform
The Xeon X5355 uses the LGA771 socket (PCIe 2.0), while the Core 2 Duo SL9600 uses BGA956 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Xeon X5355 | Core 2 Duo SL9600 |
|---|---|---|
| Socket | LGA771 | BGA956 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | — | DDR3-1066 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 0 |
Advanced Features
Virtualization: not specified (Xeon X5355) / VT-x, VT-d (Core 2 Duo SL9600). Primary use case: Core 2 Duo SL9600 targets Mobile.
| Feature | Xeon X5355 | Core 2 Duo SL9600 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Mobile |
Value Analysis
The Xeon X5355 launched at $4491 MSRP, while the Core 2 Duo SL9600 debuted at $316.
| Feature | Xeon X5355 | Core 2 Duo SL9600 |
|---|---|---|
| MSRP | $4491 | $316-93% |
| Avg Price (30d) | $4000 | — |
| Release Date | 2006 | 2009 |
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