Xeon W3540 vs Pentium Gold G6405T
Xeon W3540
Pentium Gold G6405T
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. The Xeon W3540 is positioned at rank #843 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Xeon W3540
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon W3540 | Pentium Gold G6405T |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Bloomfield (2008−2010) / 45 nm) | ✨ Modern (Comet Lake-R (2021) / 14 nm) |
💎 Value Proposition
| Insight | Xeon W3540 | Pentium Gold G6405T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($10) | ✅ 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 Xeon W3540 and Pentium Gold G6405T
Xeon W3540
The Xeon W3540 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.93 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 3,075 points. Launch price was $699.
Pentium Gold G6405T
The Pentium Gold G6405T 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 3.5 GHz, with boost up to 3.5 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2666. Passmark benchmark score: 3,095 points. Launch price was $64.
Processing Power
The Xeon W3540 packs 4 cores / 8 threads, while the Pentium Gold G6405T offers 2 cores / 4 threads — the Xeon W3540 has 2 more cores. Boost clocks reach 3.2 GHz on the Xeon W3540 versus 3.5 GHz on the Pentium Gold G6405T — a 9% clock advantage for the Pentium Gold G6405T (base: 2.93 GHz vs 3.5 GHz). The Xeon W3540 uses the Bloomfield (2008−2010) architecture (45 nm), while the Pentium Gold G6405T uses Comet Lake-R (2021) (14 nm). In PassMark, the Xeon W3540 scores 3,075 against the Pentium Gold G6405T's 3,095 — a 0.6% lead for the Pentium Gold G6405T. L3 cache: 8 MB (total) on the Xeon W3540 vs 4 MB (total) on the Pentium Gold G6405T.
| Feature | Xeon W3540 | Pentium Gold G6405T |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 4 |
| Boost Clock | 3.2 GHz | 3.5 GHz+9% |
| Base Clock | 2.93 GHz | 3.5 GHz+19% |
| L3 Cache | 8 MB (total)+100% | 4 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 45 nm | 14 nm-69% |
| Architecture | Bloomfield (2008−2010) | Comet Lake-R (2021) |
| PassMark | 3,075 | 3,095 |
Memory & Platform
The Xeon W3540 uses the LGA1366 socket (PCIe 2.0), while the Pentium Gold G6405T uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon W3540 | Pentium Gold G6405T |
|---|---|---|
| Socket | LGA1366 | LGA1200 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
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