Xeon Gold 6448Y vs Ryzen 9 9955HX3D
Xeon Gold 6448Y
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 6448Y
Performance Per Dollar Ryzen 9 9955HX3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6448Y | Ryzen 9 9955HX3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($3,583) | ✅ More affordable ($749) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Fire Range-HX (Zen 5) (2025) / 4 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6448Y | Ryzen 9 9955HX3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+387%) |
| Upfront Cost | ⚠️ Higher cost ($3,583) | ✅ More affordable ($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 6448Y and Ryzen 9 9955HX3D
Xeon Gold 6448Y
The Xeon Gold 6448Y 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 2.1 GHz, with boost up to 4.1 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 225 Watt. Memory support: DDR5-4800, DDR5-4400. Passmark benchmark score: 60,449 points. Launch price was $3,583.
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 6448Y packs 32 cores / 64 threads, while the Ryzen 9 9955HX3D offers 16 cores / 32 threads — the Xeon Gold 6448Y has 16 more cores. Boost clocks reach 4.1 GHz on the Xeon Gold 6448Y versus 5.4 GHz on the Ryzen 9 9955HX3D — a 27.4% clock advantage for the Ryzen 9 9955HX3D (base: 2.1 GHz vs 2.5 GHz). The Xeon Gold 6448Y uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the Ryzen 9 9955HX3D uses Fire Range-HX (Zen 5) (2025) (4 nm). In PassMark, the Xeon Gold 6448Y scores 60,449 against the Ryzen 9 9955HX3D's 61,578 — a 1.9% lead for the Ryzen 9 9955HX3D. L3 cache: 60 MB on the Xeon Gold 6448Y vs 128 MB (total) on the Ryzen 9 9955HX3D.
| Feature | Xeon Gold 6448Y | Ryzen 9 9955HX3D |
|---|---|---|
| Cores / Threads | 32 / 64+100% | 16 / 32 |
| Boost Clock | 4.1 GHz | 5.4 GHz+32% |
| Base Clock | 2.1 GHz | 2.5 GHz+19% |
| L3 Cache | 60 MB | 128 MB (total)+113% |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | Intel 7 nm | 4 nm-43% |
| Architecture | Sapphire Rapids (2023−2024) | Fire Range-HX (Zen 5) (2025) |
| PassMark | 60,449 | 61,578+2% |
Memory & Platform
The Xeon Gold 6448Y 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 6448Y 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 6448Y supports up to 4096 of RAM compared to 96 — 190.8% more capacity for professional workloads. Memory channels: 8 (Xeon Gold 6448Y) vs 2 (Ryzen 9 9955HX3D). PCIe lanes: 80 (Xeon Gold 6448Y) vs 28 (Ryzen 9 9955HX3D) — the Xeon Gold 6448Y offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 6448Y) and FL1 (Ryzen 9 9955HX3D).
| Feature | Xeon Gold 6448Y | 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 6448Y) vs VT-x, VT-d, AMD-V (Ryzen 9 9955HX3D). The Ryzen 9 9955HX3D includes integrated graphics (AMD Radeon 610M), while the Xeon Gold 6448Y requires a dedicated GPU. Direct competitor: Xeon Gold 6448Y rivals EPYC 9354; Ryzen 9 9955HX3D rivals Core Ultra 9 185H.
| Feature | Xeon Gold 6448Y | 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 6448Y launched at $3583 MSRP, while the Ryzen 9 9955HX3D debuted at $749.
| Feature | Xeon Gold 6448Y | Ryzen 9 9955HX3D |
|---|---|---|
| MSRP | $3583 | $749-79% |
| 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 6448Y and Ryzen 9 9955HX3D
