Ryzen Threadripper PRO 9945WX vs Xeon Gold 6423N
Ryzen Threadripper PRO 9945WX
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 Ryzen Threadripper PRO 9945WX
Performance Per Dollar Xeon Gold 6423N
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen Threadripper PRO 9945WX | Xeon Gold 6423N |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($1,340) | ⚠️ Higher cost ($2,161) |
| Longevity | ✨ Modern (Shimada Peak (2025) / 4 nm) | ✨ Modern (Legacy / Intel 7 nm) |
💎 Value Proposition
| Insight | Ryzen Threadripper PRO 9945WX | Xeon Gold 6423N |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+60%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($1,340) | ⚠️ 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 Threadripper PRO 9945WX and Xeon Gold 6423N
Ryzen Threadripper PRO 9945WX
The Ryzen Threadripper PRO 9945WX is manufactured by AMD. It was released in 2025-01-01. It is based on the Shimada Peak (2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.7 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 56,854 points. Launch price was $2,000.
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 Threadripper PRO 9945WX packs 12 cores / 24 threads, while the Xeon Gold 6423N offers 28 cores / 56 threads — the Xeon Gold 6423N has 16 more cores. Boost clocks reach 5.4 GHz on the Ryzen Threadripper PRO 9945WX versus 3.6 GHz on the Xeon Gold 6423N — a 40% clock advantage for the Ryzen Threadripper PRO 9945WX (base: 4.7 GHz vs 2 GHz). The Ryzen Threadripper PRO 9945WX is built on the Shimada Peak (2025) architecture. In PassMark, the Ryzen Threadripper PRO 9945WX scores 56,854 against the Xeon Gold 6423N's 57,434 — a 1% lead for the Xeon Gold 6423N. L3 cache: 64 MB (total) on the Ryzen Threadripper PRO 9945WX vs 52.5 MB on the Xeon Gold 6423N.
| Feature | Ryzen Threadripper PRO 9945WX | Xeon Gold 6423N |
|---|---|---|
| Cores / Threads | 12 / 24 | 28 / 56+133% |
| Boost Clock | 5.4 GHz+50% | 3.6 GHz |
| Base Clock | 4.7 GHz+135% | 2 GHz |
| L3 Cache | 64 MB (total)+22% | 52.5 MB |
| L2 Cache | 1 MB (per core) | — |
| Process | 4 nm-43% | Intel 7 nm |
| Architecture | Shimada Peak (2025) | — |
| PassMark | 56,854 | 57,434+1% |
Memory & Platform
The Ryzen Threadripper PRO 9945WX uses the sTR5 socket (PCIe 4.0), while the Xeon Gold 6423N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 6400 on the Ryzen Threadripper PRO 9945WX versus 4800 on the Xeon Gold 6423N — the Ryzen Threadripper PRO 9945WX supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6423N supports up to 4096 of RAM compared to 2048 — 66.7% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (Ryzen Threadripper PRO 9945WX) vs 80 (Xeon Gold 6423N) — the Ryzen Threadripper PRO 9945WX offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX90,TRX50 (Ryzen Threadripper PRO 9945WX) and C741 (Xeon Gold 6423N).
| Feature | Ryzen Threadripper PRO 9945WX | Xeon Gold 6423N |
|---|---|---|
| Socket | sTR5 | LGA4677 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
| Max RAM Speed | 6400+33% | 4800 |
| Max RAM Capacity | 2048 | 4096+100% |
| RAM Channels | 8 | 8 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 128+60% | 80 |
Advanced Features
Only the Ryzen Threadripper PRO 9945WX 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 Threadripper PRO 9945WX) vs VT-x, VT-d (Xeon Gold 6423N). Direct competitor: Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545; Xeon Gold 6423N rivals EPYC 9354.
| Feature | Ryzen Threadripper PRO 9945WX | Xeon Gold 6423N |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | None |
| Unlocked | Yes | No |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d, AMD-V | VT-x, VT-d |
Value Analysis
The Ryzen Threadripper PRO 9945WX launched at $1340 MSRP, while the Xeon Gold 6423N debuted at $2161. At current prices ($1340 vs $2161), the Ryzen Threadripper PRO 9945WX is $821 cheaper. In terms of value (PassMark points per dollar), the Ryzen Threadripper PRO 9945WX delivers 42.4 pts/$ vs 26.6 pts/$ for the Xeon Gold 6423N — making the Ryzen Threadripper PRO 9945WX the 45.9% better value option.
| Feature | Ryzen Threadripper PRO 9945WX | Xeon Gold 6423N |
|---|---|---|
| MSRP | $1340-38% | $2161 |
| Avg Price (30d) | $1340-38% | $2161 |
| Performance per Dollar | 42.4+59% | 26.6 |
| Release Date | 2025 | 2023 |
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