
Pentium Gold 6405U vs Xeon 5148

Pentium Gold 6405U

Xeon 5148
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 Pentium Gold 6405U is positioned at rank 770 and the Xeon 5148 is on rank 954, so the Pentium Gold 6405U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium Gold 6405U
Performance Per Dollar Xeon 5148
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium Gold 6405U | Xeon 5148 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | 🛑 Legacy (Woodcrest (2006) / 65 nm) |
💎 Value Proposition
| Insight | Pentium Gold 6405U | Xeon 5148 |
|---|---|---|
| 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 6405U and Xeon 5148

Pentium Gold 6405U
The Pentium Gold 6405U is manufactured by Intel. It was released in 31 October 2019 (6 years ago). It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 4 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 2 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 1,320 points. Launch price was $161.

Xeon 5148
The Xeon 5148 is manufactured by Intel. It was released in Junho 2006 (19 years ago). It is based on the Woodcrest (2006) architecture. It features 2 cores and 2 threads. Max frequency: 2.33 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 40 Watt. Memory support: DDR2. Passmark benchmark score: 1,315 points. Launch price was $9.
Processing Power
The Pentium Gold 6405U packs 2 cores / 4 threads, matching the Xeon 5148's 2 cores. Boost clocks reach 2.4 GHz on the Pentium Gold 6405U versus 2.33 GHz on the Xeon 5148 — a 3% clock advantage for the Pentium Gold 6405U. The Pentium Gold 6405U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Xeon 5148 uses Woodcrest (2006) (65 nm). In PassMark, the Pentium Gold 6405U scores 1,320 against the Xeon 5148's 1,315 — a 0.4% lead for the Pentium Gold 6405U. L3 cache: 2 MB on the Pentium Gold 6405U vs 0 kB on the Xeon 5148.
| Feature | Pentium Gold 6405U | Xeon 5148 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | 2.4 GHz+3% | 2.33 GHz |
| Base Clock | 2.4 GHz | — |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | 1 MB | 4 MB+300% |
| Process | 14 nm-78% | 65 nm |
| Architecture | Comet Lake-U (2019−2020) | Woodcrest (2006) |
| PassMark | 1,320 | 1,315 |
Memory & Platform
The Pentium Gold 6405U uses the FCBGA1528 socket (PCIe 3.0), while the Xeon 5148 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium Gold 6405U | Xeon 5148 |
|---|---|---|
| Socket | FCBGA1528 | LGA771 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
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