
Pentium Gold G6505 vs Xeon L5639

Pentium Gold G6505

Xeon L5639
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar Xeon L5639
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium Gold G6505 | Xeon L5639 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Comet Lake-R (2021) / 14 nm) | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Pentium Gold G6505 | Xeon L5639 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Pentium Gold G6505 and Xeon L5639

Pentium Gold G6505
The Pentium Gold G6505 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 2 cores and 4 threads. Base frequency is 4.2 GHz, with boost up to 4.2 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 58 Watt. Memory support: DDR4-2666. Passmark benchmark score: 4,371 points. Launch price was $75.

Xeon L5639
The Xeon L5639 is manufactured by Intel. It was released in 2015-01-01. It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 2.133 GHz, with boost up to 2.67 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 60 Watt. Memory support: DDR3. Passmark benchmark score: 4,419 points. Launch price was $800.
Processing Power
The Pentium Gold G6505 packs 2 cores / 4 threads, while the Xeon L5639 offers 6 cores / 12 threads — the Xeon L5639 has 4 more cores. Boost clocks reach 4.2 GHz on the Pentium Gold G6505 versus 2.67 GHz on the Xeon L5639 — a 44.5% clock advantage for the Pentium Gold G6505 (base: 4.2 GHz vs 2.133 GHz). The Pentium Gold G6505 uses the Comet Lake-R (2021) architecture (14 nm), while the Xeon L5639 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Pentium Gold G6505 scores 4,371 against the Xeon L5639's 4,419 — a 1.1% lead for the Xeon L5639. L3 cache: 4 MB (total) on the Pentium Gold G6505 vs 12 MB (total) on the Xeon L5639.
| Feature | Pentium Gold G6505 | Xeon L5639 |
|---|---|---|
| Cores / Threads | 2 / 4 | 6 / 12+200% |
| Boost Clock | 4.2 GHz+57% | 2.67 GHz |
| Base Clock | 4.2 GHz+97% | 2.133 GHz |
| L3 Cache | 4 MB (total) | 12 MB (total)+200% |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Comet Lake-R (2021) | Westmere-EP (2010−2011) |
| PassMark | 4,371 | 4,419+1% |
Memory & Platform
The Pentium Gold G6505 uses the LGA1200 socket (PCIe 3.0), while the Xeon L5639 uses LGA1366 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Pentium Gold G6505 | Xeon L5639 |
|---|---|---|
| Socket | LGA1200 | LGA1366 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
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