
Xeon X5355

Pentium P6000
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 Pentium P6000 is on rank 1005, so the Pentium P6000 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 Pentium P6000
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5355 | Pentium P6000 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($4,000) | ✅ More affordable ($90) |
| Longevity | 🛑 Legacy (Clovertown (2006−2007) / 65 nm) | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Xeon X5355 | Pentium P6000 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+4371%) |
| Upfront Cost | ⚠️ Higher cost ($4,000) | ✅ More affordable ($90) |
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 Pentium P6000

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.

Pentium P6000
The Pentium P6000 is manufactured by Intel. It was released in 2007-01-01. It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 2 threads. Base frequency is 1.86 GHz, with boost up to 1.88 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,051 points. Launch price was $69.
Processing Power
The Xeon X5355 packs 4 cores / 4 threads, while the Pentium P6000 offers 2 cores / 2 threads — the Xeon X5355 has 2 more cores. Boost clocks reach 0.67 GHz on the Xeon X5355 versus 1.88 GHz on the Pentium P6000 — a 94.9% clock advantage for the Pentium P6000 (base: 2.66 GHz vs 1.86 GHz). The Xeon X5355 uses the Clovertown (2006−2007) architecture (65 nm), while the Pentium P6000 uses Arrandale (2010−2011) (32 nm). In PassMark, the Xeon X5355 scores 2,039 against the Pentium P6000's 2,051 — a 0.6% lead for the Pentium P6000. L3 cache: 8 MB L2 Cache on the Xeon X5355 vs 3 MB (total) on the Pentium P6000.
| Feature | Xeon X5355 | Pentium P6000 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 0.67 GHz | 1.88 GHz+181% |
| Base Clock | 2.66 GHz+43% | 1.86 GHz |
| L3 Cache | 8 MB L2 Cache+167% | 3 MB (total) |
| L2 Cache | 4 MB (total)+1500% | 256K (per core) |
| Process | 65 nm | 32 nm-51% |
| Architecture | Clovertown (2006−2007) | Arrandale (2010−2011) |
| PassMark | 2,039 | 2,051 |
Memory & Platform
The Xeon X5355 uses the LGA771 socket (PCIe 2.0), while the Pentium P6000 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon X5355 | Pentium P6000 |
|---|---|---|
| Socket | LGA771 | PGA988 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
Value Analysis
The Xeon X5355 launched at $4491 MSRP, while the Pentium P6000 debuted at $150. At current prices ($4000 vs $90), the Pentium P6000 is $3910 cheaper. In terms of value (PassMark points per dollar), the Xeon X5355 delivers 0.5 pts/$ vs 22.8 pts/$ for the Pentium P6000 — making the Pentium P6000 the 191.2% better value option.
| Feature | Xeon X5355 | Pentium P6000 |
|---|---|---|
| MSRP | $4491 | $150-97% |
| Avg Price (30d) | $4000 | $90-98% |
| Performance per Dollar | 0.5 | 22.8+4460% |
| Release Date | 2006 | 2010 |
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