Celeron M 575 vs Xeon X6550
Celeron M 575
Xeon X6550
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 575 is positioned at rank 827 and the Xeon X6550 is on rank 879, so the Celeron M 575 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 575
Performance Per Dollar Xeon X6550
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron M 575 | Xeon X6550 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($12) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Legacy / 45 nm) |
💎 Value Proposition
| Insight | Celeron M 575 | Xeon X6550 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($12) | ✅ More affordable ($0) |
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 575 and Xeon X6550
Celeron M 575
The Celeron M 575 is manufactured by Intel. It was released in 1 June 2008 (17 years ago). It is based on the Merom (2006−2008) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,917 points. Launch price was $86.
Xeon X6550
The Xeon X6550 is manufactured by Intel. It was released in 2015-01-01. It features 8 cores and 16 threads. Base frequency is 2 GHz, with boost up to 2.4 GHz. L3 cache: 18 MB L3 Cache. Built on 45 nm process technology. Socket: LGA1567. Thermal design power (TDP): 130 Watt. Passmark benchmark score: 1,936 points. Launch price was $800.
Processing Power
The Celeron M 575 packs 1 cores / 1 threads, while the Xeon X6550 offers 8 cores / 16 threads — the Xeon X6550 has 7 more cores. Boost clocks reach 2 GHz on the Celeron M 575 versus 2.4 GHz on the Xeon X6550 — a 18.2% clock advantage for the Xeon X6550. The Celeron M 575 is built on the Merom (2006−2008) architecture. In PassMark, the Celeron M 575 scores 1,917 against the Xeon X6550's 1,936 — a 1% lead for the Xeon X6550.
| Feature | Celeron M 575 | Xeon X6550 |
|---|---|---|
| Cores / Threads | 1 / 1 | 8 / 16+700% |
| Boost Clock | 2 GHz | 2.4 GHz+20% |
| Base Clock | — | 2 GHz |
| L3 Cache | — | 18 MB L3 Cache |
| L2 Cache | 1 MB | — |
| Process | 65 nm | 45 nm-31% |
| Architecture | Merom (2006−2008) | — |
| PassMark | 1,917 | 1,936 |
Memory & Platform
The Celeron M 575 uses the PGA478 socket (PCIe 1.1), while the Xeon X6550 uses LGA1567 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 800 on the Celeron M 575 versus DDR3-1333 on the Xeon X6550 — the Celeron M 575 supports 198.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. Memory channels: 2 (Celeron M 575) vs 4 (Xeon X6550). Chipset compatibility: GL40,GM45 (Celeron M 575) and Nehalem-EX (Xeon X6550).
| Feature | Celeron M 575 | Xeon X6550 |
|---|---|---|
| Socket | PGA478 | LGA1567 |
| PCIe Generation | PCIe 1.1 | PCIe 5.0+355% |
| Max RAM Speed | 800+26567% | DDR3-1333 |
| Max RAM Capacity | 4 | — |
| RAM Channels | 2 | 4+100% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | — |
Advanced Features
Neither processor supports overclocking. Virtualization support: false (Celeron M 575) vs VT-x, VT-d, EPT (Xeon X6550). Primary use case: Xeon X6550 targets Server. Direct competitor: Celeron M 575 rivals Mobile Sempron SI-40; Xeon X6550 rivals Core i7-980X.
| Feature | Celeron M 575 | Xeon X6550 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | false | VT-x, VT-d, EPT |
| Target Use | — | Server |
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