Pentium Gold 6405U vs Ryzen 5 5600X
Pentium Gold 6405U
Popular choices:
Ryzen 5 5600X
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 Pentium Gold 6405U is positioned at rank #770 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 Pentium Gold 6405U
Performance Per Dollar Ryzen 5 5600X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium Gold 6405U | Ryzen 5 5600X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($135) |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Pentium Gold 6405U | Ryzen 5 5600X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($135) |
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 Ryzen 5 5600X
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.
Ryzen 5 5600X
The Ryzen 5 5600X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 6 cores and 12 threads. Base frequency is 3.7 GHz, with boost up to 4.6 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 21,845 points. Launch price was $299.
Processing Power
The Pentium Gold 6405U packs 2 cores / 4 threads, while the Ryzen 5 5600X offers 6 cores / 12 threads — the Ryzen 5 5600X has 4 more cores. Boost clocks reach 2.4 GHz on the Pentium Gold 6405U versus 4.6 GHz on the Ryzen 5 5600X — a 62.9% clock advantage for the Ryzen 5 5600X (base: 2.4 GHz vs 3.7 GHz). The Pentium Gold 6405U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Ryzen 5 5600X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Pentium Gold 6405U scores 1,320 against the Ryzen 5 5600X's 21,845 — a 177.2% lead for the Ryzen 5 5600X. L3 cache: 2 MB on the Pentium Gold 6405U vs 32 MB on the Ryzen 5 5600X.
| Feature | Pentium Gold 6405U | Ryzen 5 5600X |
|---|---|---|
| Cores / Threads | 2 / 4 | 6 / 12+200% |
| Boost Clock | 2.4 GHz | 4.6 GHz+92% |
| Base Clock | 2.4 GHz | 3.7 GHz+54% |
| L3 Cache | 2 MB | 32 MB+1500% |
| L2 Cache | 1 MB+100% | 512K (per core) |
| Process | 14 nm | 7 nm, 12 nm-50% |
| Architecture | Comet Lake-U (2019−2020) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 1,320 | 21,845+1555% |
Memory & Platform
The Pentium Gold 6405U uses the FCBGA1528 socket (PCIe 3.0), while the Ryzen 5 5600X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Pentium Gold 6405U | Ryzen 5 5600X |
|---|---|---|
| Socket | FCBGA1528 | AM4 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | — | DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 24 |
Advanced Features
Virtualization: not specified (Pentium Gold 6405U) / AMD-V (Ryzen 5 5600X). Primary use case: Ryzen 5 5600X targets Desktop.
| Feature | Pentium Gold 6405U | Ryzen 5 5600X |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Desktop |
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