Ryzen 9 7945HX3D vs Xeon Gold 6423N
Ryzen 9 7945HX3D
Xeon Gold 6423N
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
Performance Per Dollar Xeon Gold 6423N
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 7945HX3D | Xeon Gold 6423N |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($2,161) |
| Longevity | ✨ Modern (Dragon Range-HX (Zen 4) (2023−2024) / 5 nm) | ✨ Modern (Legacy / Intel 7 nm) |
💎 Value Proposition
| Insight | Ryzen 9 7945HX3D | Xeon Gold 6423N |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($2,161) |
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 Ryzen 9 7945HX3D and Xeon Gold 6423N
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.
Xeon Gold 6423N
The Xeon Gold 6423N is manufactured by Intel. It was released in 2023-07-01. It features 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 3.6 GHz. L3 cache: 52.5 MB. Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 195 Watt. Memory support: DDR5-4400. Passmark benchmark score: 57,434 points. Launch price was $2,161.
Processing Power
The Ryzen 9 7945HX3D packs 16 cores / 32 threads, while the Xeon Gold 6423N offers 28 cores / 56 threads — the Xeon Gold 6423N has 12 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 7945HX3D versus 3.6 GHz on the Xeon Gold 6423N — a 40% clock advantage for the Ryzen 9 7945HX3D (base: 2.3 GHz vs 2 GHz). The Ryzen 9 7945HX3D is built on the Dragon Range-HX (Zen 4) (2023−2024) architecture. In PassMark, the Ryzen 9 7945HX3D scores 57,803 against the Xeon Gold 6423N's 57,434 — a 0.6% lead for the Ryzen 9 7945HX3D. L3 cache: 128 MB (total) on the Ryzen 9 7945HX3D vs 52.5 MB on the Xeon Gold 6423N.
| Feature | Ryzen 9 7945HX3D | Xeon Gold 6423N |
|---|---|---|
| Cores / Threads | 16 / 32 | 28 / 56+75% |
| Boost Clock | 5.4 GHz+50% | 3.6 GHz |
| Base Clock | 2.3 GHz+15% | 2 GHz |
| L3 Cache | 128 MB (total)+144% | 52.5 MB |
| L2 Cache | 1 MB (per core) | — |
| Process | 5 nm-29% | Intel 7 nm |
| Architecture | Dragon Range-HX (Zen 4) (2023−2024) | — |
| PassMark | 57,803 | 57,434 |
Memory & Platform
The Ryzen 9 7945HX3D uses the FL1 socket (PCIe 5.0), while the Xeon Gold 6423N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5200 on the Ryzen 9 7945HX3D versus 4800 on the Xeon Gold 6423N — the Ryzen 9 7945HX3D supports 8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6423N supports up to 4096 of RAM compared to 128 — 187.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 7945HX3D) vs 8 (Xeon Gold 6423N). PCIe lanes: 28 (Ryzen 9 7945HX3D) vs 80 (Xeon Gold 6423N) — the Xeon Gold 6423N offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 7945HX3D) and C741 (Xeon Gold 6423N).
| Feature | Ryzen 9 7945HX3D | Xeon Gold 6423N |
|---|---|---|
| Socket | FL1 | LGA4677 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | 5200+8% | 4800 |
| Max RAM Capacity | 128 | 4096+3100% |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 80+186% |
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, AMD-V (Ryzen 9 7945HX3D) vs VT-x, VT-d (Xeon Gold 6423N). The Ryzen 9 7945HX3D includes integrated graphics (AMD Radeon 610M), while the Xeon Gold 6423N requires a dedicated GPU. Direct competitor: Ryzen 9 7945HX3D rivals Core Ultra 9 285HX; Xeon Gold 6423N rivals EPYC 9354.
| Feature | Ryzen 9 7945HX3D | Xeon Gold 6423N |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | AMD Radeon 610M | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, AMD-V | VT-x, VT-d |
Value Analysis
The Ryzen 9 7945HX3D launched at $0 MSRP, while the Xeon Gold 6423N debuted at $2161. At current prices ($0 vs $2161), the Ryzen 9 7945HX3D is $2161 cheaper.
| Feature | Ryzen 9 7945HX3D | Xeon Gold 6423N |
|---|---|---|
| MSRP | $0-100% | $2161 |
| Avg Price (30d) | $0-100% | $2161 |
| Performance per Dollar | — | 26.6 |
| Release Date | 2023 | 2023 |
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