
Xeon X5355 vs Core M-5Y51

Xeon X5355

Core M-5Y51
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 M-5Y51 is on rank 1154, 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 M-5Y51
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5355 | Core M-5Y51 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($4,000) | ✅ More affordable ($281) |
| Longevity | 🛑 Legacy (Clovertown (2006−2007) / 65 nm) | 🛑 Legacy (Broadwell-Y (2014) / 14 nm) |
💎 Value Proposition
| Insight | Xeon X5355 | Core M-5Y51 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+1317%) |
| Upfront Cost | ⚠️ Higher cost ($4,000) | ✅ More affordable ($281) |
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 M-5Y51

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 M-5Y51
The Core M-5Y51 is manufactured by Intel. It was released in 27 October 2014 (11 years ago). It is based on the Broadwell-Y (2014) architecture. It features 2 cores and 4 threads. Base frequency is 1.1 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1234. Thermal design power (TDP): 4.5 Watt. Memory support: DDR3. Passmark benchmark score: 2,030 points. Launch price was $69.
Processing Power
The Xeon X5355 packs 4 cores / 4 threads, while the Core M-5Y51 offers 2 cores / 4 threads — the Xeon X5355 has 2 more cores. Boost clocks reach 0.67 GHz on the Xeon X5355 versus 2.6 GHz on the Core M-5Y51 — a 118% clock advantage for the Core M-5Y51 (base: 2.66 GHz vs 1.1 GHz). The Xeon X5355 uses the Clovertown (2006−2007) architecture (65 nm), while the Core M-5Y51 uses Broadwell-Y (2014) (14 nm). In PassMark, the Xeon X5355 scores 2,039 against the Core M-5Y51's 2,030 — a 0.4% lead for the Xeon X5355. L3 cache: 8 MB L2 Cache on the Xeon X5355 vs 4 MB (total) on the Core M-5Y51.
| Feature | Xeon X5355 | Core M-5Y51 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 4 |
| Boost Clock | 0.67 GHz | 2.6 GHz+288% |
| Base Clock | 2.66 GHz+142% | 1.1 GHz |
| L3 Cache | 8 MB L2 Cache+100% | 4 MB (total) |
| L2 Cache | 4 MB (total)+1500% | 256K (per core) |
| Process | 65 nm | 14 nm-78% |
| Architecture | Clovertown (2006−2007) | Broadwell-Y (2014) |
| PassMark | 2,039 | 2,030 |
Memory & Platform
The Xeon X5355 uses the LGA771 socket (PCIe 2.0), while the Core M-5Y51 uses FCBGA1234 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon X5355 | Core M-5Y51 |
|---|---|---|
| Socket | LGA771 | FCBGA1234 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
Value Analysis
The Xeon X5355 launched at $4491 MSRP, while the Core M-5Y51 debuted at $281. At current prices ($4000 vs $281), the Core M-5Y51 is $3719 cheaper. In terms of value (PassMark points per dollar), the Xeon X5355 delivers 0.5 pts/$ vs 7.2 pts/$ for the Core M-5Y51 — making the Core M-5Y51 the 173.6% better value option.
| Feature | Xeon X5355 | Core M-5Y51 |
|---|---|---|
| MSRP | $4491 | $281-94% |
| Avg Price (30d) | $4000 | $281-93% |
| Performance per Dollar | 0.5 | 7.2+1340% |
| Release Date | 2006 | 2014 |
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