Xeon Gold 5420+ vs Ryzen 9 7945HX3D
Xeon Gold 5420+
Ryzen 9 7945HX3D
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 5420+
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 5420+ | Ryzen 9 7945HX3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($1,848) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / 10 nm) | ✨ Modern (Dragon Range-HX (Zen 4) (2023−2024) / 5 nm) |
💎 Value Proposition
| Insight | Xeon Gold 5420+ | Ryzen 9 7945HX3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($1,848) | ✅ 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 Gold 5420+ and Ryzen 9 7945HX3D
Xeon Gold 5420+
The Xeon Gold 5420+ 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 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 4.1 GHz. L3 cache: 52.5 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 205 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,209 points. Launch price was $1,848.
Ryzen 9 7945HX3D
The Ryzen 9 7945HX3D is manufactured by AMD. It was released in 2023-07-27. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.3 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5-5200. Passmark benchmark score: 57,803 points. Launch price was $800.
Processing Power
The Xeon Gold 5420+ packs 28 cores / 56 threads, while the Ryzen 9 7945HX3D offers 16 cores / 32 threads — the Xeon Gold 5420+ has 12 more cores. Boost clocks reach 4.1 GHz on the Xeon Gold 5420+ versus 5.4 GHz on the Ryzen 9 7945HX3D — a 27.4% clock advantage for the Ryzen 9 7945HX3D (base: 2 GHz vs 2.3 GHz). The Xeon Gold 5420+ uses the Sapphire Rapids (2023−2024) architecture (10 nm), while the Ryzen 9 7945HX3D uses Dragon Range-HX (Zen 4) (2023−2024) (5 nm). In PassMark, the Xeon Gold 5420+ scores 58,209 against the Ryzen 9 7945HX3D's 57,803 — a 0.7% lead for the Xeon Gold 5420+. L3 cache: 52.5 MB on the Xeon Gold 5420+ vs 128 MB (total) on the Ryzen 9 7945HX3D.
| Feature | Xeon Gold 5420+ | Ryzen 9 7945HX3D |
|---|---|---|
| Cores / Threads | 28 / 56+75% | 16 / 32 |
| Boost Clock | 4.1 GHz | 5.4 GHz+32% |
| Base Clock | 2 GHz | 2.3 GHz+15% |
| L3 Cache | 52.5 MB | 128 MB (total)+144% |
| L2 Cache | 2 MB (per core)+100% | 1 MB (per core) |
| Process | 10 nm | 5 nm-50% |
| Architecture | Sapphire Rapids (2023−2024) | Dragon Range-HX (Zen 4) (2023−2024) |
| PassMark | 58,209 | 57,803 |
Memory & Platform
The Xeon Gold 5420+ uses the LGA4677 socket (PCIe 4.0), while the Ryzen 9 7945HX3D uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Gold 5420+ versus 5200 on the Ryzen 9 7945HX3D — the Ryzen 9 7945HX3D supports 8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 5420+ supports up to 4096 of RAM compared to 128 — 187.9% more capacity for professional workloads. Memory channels: 8 (Xeon Gold 5420+) vs 2 (Ryzen 9 7945HX3D). PCIe lanes: 80 (Xeon Gold 5420+) vs 28 (Ryzen 9 7945HX3D) — the Xeon Gold 5420+ offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 5420+) and FL1 (Ryzen 9 7945HX3D).
| Feature | Xeon Gold 5420+ | Ryzen 9 7945HX3D |
|---|---|---|
| Socket | LGA4677 | FL1 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 4800 | 5200+8% |
| Max RAM Capacity | 4096+3100% | 128 |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80+186% | 28 |
Advanced Features
Only the Ryzen 9 7945HX3D 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 5420+) vs VT-x, VT-d, AMD-V (Ryzen 9 7945HX3D). The Ryzen 9 7945HX3D includes integrated graphics (AMD Radeon 610M), while the Xeon Gold 5420+ requires a dedicated GPU. Direct competitor: Xeon Gold 5420+ rivals EPYC 9354; Ryzen 9 7945HX3D rivals Core Ultra 9 285HX.
| Feature | Xeon Gold 5420+ | Ryzen 9 7945HX3D |
|---|---|---|
| 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 5420+ launched at $1848 MSRP, while the Ryzen 9 7945HX3D debuted at $0. At current prices ($1848 vs $0), the Ryzen 9 7945HX3D is $1848 cheaper.
| Feature | Xeon Gold 5420+ | Ryzen 9 7945HX3D |
|---|---|---|
| MSRP | $1848 | $0-100% |
| Avg Price (30d) | $1848 | $0-100% |
| Performance per Dollar | 31.5 | — |
| Release Date | 2023 | 2023 |
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