Xeon Gold 6438Y+ vs Ryzen 9 9955HX3D
Xeon Gold 6438Y+
Ryzen 9 9955HX3D
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 Xeon Gold 6438Y+
Performance Per Dollar Ryzen 9 9955HX3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6438Y+ | Ryzen 9 9955HX3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($389) | ⚠️ Higher cost ($749) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / 10 nm) | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6438Y+ | Ryzen 9 9955HX3D |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+96%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($389) | ⚠️ Higher cost ($749) |
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 Gold 6438Y+ and Ryzen 9 9955HX3D
Xeon Gold 6438Y+
The Xeon Gold 6438Y+ is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 32 cores and 64 threads. Base frequency is 2 GHz, with boost up to 4 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-4800. Passmark benchmark score: 62,660 points. Launch price was $3,141.
Ryzen 9 9955HX3D
The Ryzen 9 9955HX3D is manufactured by AMD. It was released in 2025-01-01. It is based on the Fire Range-HX (Zen 5) (2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 61,578 points. Launch price was $700.
Processing Power
The Xeon Gold 6438Y+ packs 32 cores / 64 threads, while the Ryzen 9 9955HX3D offers 16 cores / 32 threads — the Xeon Gold 6438Y+ has 16 more cores. Boost clocks reach 4 GHz on the Xeon Gold 6438Y+ versus 5.4 GHz on the Ryzen 9 9955HX3D — a 29.8% clock advantage for the Ryzen 9 9955HX3D (base: 2 GHz vs 2.5 GHz). The Xeon Gold 6438Y+ uses the Sapphire Rapids (2023−2024) architecture (10 nm), while the Ryzen 9 9955HX3D uses Fire Range-HX (Zen 5) (2025) (4 nm). In PassMark, the Xeon Gold 6438Y+ scores 62,660 against the Ryzen 9 9955HX3D's 61,578 — a 1.7% lead for the Xeon Gold 6438Y+. L3 cache: 60 MB on the Xeon Gold 6438Y+ vs 128 MB (total) on the Ryzen 9 9955HX3D.
| Feature | Xeon Gold 6438Y+ | Ryzen 9 9955HX3D |
|---|---|---|
| Cores / Threads | 32 / 64+100% | 16 / 32 |
| Boost Clock | 4 GHz | 5.4 GHz+35% |
| Base Clock | 2 GHz | 2.5 GHz+25% |
| L3 Cache | 60 MB | 128 MB (total)+113% |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | 10 nm | 4 nm-60% |
| Architecture | Sapphire Rapids (2023−2024) | Fire Range-HX (Zen 5) (2025) |
| PassMark | 62,660+2% | 61,578 |
Memory & Platform
The Xeon Gold 6438Y+ uses the LGA4677 socket (PCIe 5.0), while the Ryzen 9 9955HX3D uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Gold 6438Y+ versus 5600 on the Ryzen 9 9955HX3D — the Ryzen 9 9955HX3D supports 15.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6438Y+ supports up to 4096 of RAM compared to 96 — 190.8% more capacity for professional workloads. Memory channels: 8 (Xeon Gold 6438Y+) vs 2 (Ryzen 9 9955HX3D). PCIe lanes: 80 (Xeon Gold 6438Y+) vs 28 (Ryzen 9 9955HX3D) — the Xeon Gold 6438Y+ offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 6438Y+) and FL1 (Ryzen 9 9955HX3D).
| Feature | Xeon Gold 6438Y+ | Ryzen 9 9955HX3D |
|---|---|---|
| Socket | LGA4677 | FL1 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | 4800 | 5600+17% |
| Max RAM Capacity | 4096+4167% | 96 |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80+186% | 28 |
Advanced Features
Only the Ryzen 9 9955HX3D has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (Xeon Gold 6438Y+) vs VT-x, VT-d, AMD-V (Ryzen 9 9955HX3D). The Ryzen 9 9955HX3D includes integrated graphics (AMD Radeon 610M), while the Xeon Gold 6438Y+ requires a dedicated GPU. Direct competitor: Xeon Gold 6438Y+ rivals EPYC 9354; Ryzen 9 9955HX3D rivals Core Ultra 9 185H.
| Feature | Xeon Gold 6438Y+ | Ryzen 9 9955HX3D |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | AMD Radeon 610M |
| Unlocked | No | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d, AMD-V |
Value Analysis
The Xeon Gold 6438Y+ launched at $2607 MSRP, while the Ryzen 9 9955HX3D debuted at $749.
| Feature | Xeon Gold 6438Y+ | Ryzen 9 9955HX3D |
|---|---|---|
| MSRP | $2607 | $749-71% |
| Avg Price (30d) | $389 | — |
| Release Date | 2023 | 2025 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Xeon Gold 6438Y+ and Ryzen 9 9955HX3D
