
Xeon X5355 vs Pentium G620T

Xeon X5355

Pentium G620T
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 G620T is on rank 571, so the Pentium G620T 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 G620T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5355 | Pentium G620T |
|---|---|---|
| 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 (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Xeon X5355 | Pentium G620T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+4379%) |
| 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 G620T

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 G620T
The Pentium G620T is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,055 points. Launch price was $80.
Processing Power
The Xeon X5355 packs 4 cores / 4 threads, while the Pentium G620T offers 2 cores / 2 threads — the Xeon X5355 has 2 more cores. Boost clocks reach 0.67 GHz on the Xeon X5355 versus 2.2 GHz on the Pentium G620T — a 106.6% clock advantage for the Pentium G620T (base: 2.66 GHz vs 2.2 GHz). The Xeon X5355 uses the Clovertown (2006−2007) architecture (65 nm), while the Pentium G620T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Xeon X5355 scores 2,039 against the Pentium G620T's 2,055 — a 0.8% lead for the Pentium G620T. L3 cache: 8 MB L2 Cache on the Xeon X5355 vs 3 MB (total) on the Pentium G620T.
| Feature | Xeon X5355 | Pentium G620T |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 0.67 GHz | 2.2 GHz+228% |
| Base Clock | 2.66 GHz+21% | 2.2 GHz |
| L3 Cache | 8 MB L2 Cache+167% | 3 MB (total) |
| L2 Cache | 4 MB (total)+1500% | 256 kB (per core) |
| Process | 65 nm | 32 nm-51% |
| Architecture | Clovertown (2006−2007) | Sandy Bridge (2011−2013) |
| PassMark | 2,039 | 2,055 |
Memory & Platform
The Xeon X5355 uses the LGA771 socket (PCIe 2.0), while the Pentium G620T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon X5355 | Pentium G620T |
|---|---|---|
| Socket | LGA771 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
Value Analysis
The Xeon X5355 launched at $4491 MSRP, while the Pentium G620T debuted at $64. At current prices ($4000 vs $90), the Pentium G620T 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 G620T — making the Pentium G620T the 191.3% better value option.
| Feature | Xeon X5355 | Pentium G620T |
|---|---|---|
| MSRP | $4491 | $64-99% |
| Avg Price (30d) | $4000 | $90-98% |
| Performance per Dollar | 0.5 | 22.8+4460% |
| Release Date | 2006 | 2011 |
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