Ryzen 9 7945HX vs Xeon w7-3455
Ryzen 9 7945HX
Xeon w7-3455
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 9 7945HX
Performance Per Dollar Xeon w7-3455
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 7945HX | Xeon w7-3455 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($2,625) |
| Longevity | ✨ Modern (Dragon Range-HX (Zen 4) (2023−2024) / CCD = 5 nm, I/O = 6 nm) | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) |
💎 Value Proposition
| Insight | Ryzen 9 7945HX | Xeon w7-3455 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($2,625) |
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 7945HX and Xeon w7-3455
Ryzen 9 7945HX
The Ryzen 9 7945HX is manufactured by AMD. It was released in 2023-03-12. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on CCD = 5 nm, I/O = 6 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 54,425 points. Launch price was $700.
Xeon w7-3455
The Xeon w7-3455 is manufactured by Intel. It was released in 15 February 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 24 cores and 48 threads. Base frequency is 2.5 GHz, with boost up to 4.8 GHz. L3 cache: 67.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 270 Watt. Memory support: DDR5-4800. Passmark benchmark score: 54,925 points. Launch price was $2,489.
Processing Power
The Ryzen 9 7945HX packs 16 cores / 32 threads, while the Xeon w7-3455 offers 24 cores / 48 threads — the Xeon w7-3455 has 8 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 7945HX versus 4.8 GHz on the Xeon w7-3455 — a 11.8% clock advantage for the Ryzen 9 7945HX (base: 2.5 GHz vs 2.5 GHz). The Ryzen 9 7945HX uses the Dragon Range-HX (Zen 4) (2023−2024) architecture (CCD = 5 nm, I/O = 6 nm), while the Xeon w7-3455 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Ryzen 9 7945HX scores 54,425 against the Xeon w7-3455's 54,925 — a 0.9% lead for the Xeon w7-3455. Geekbench 6 single-core — the metric most relevant to gaming — records 2,774 vs 1,900, a 37.4% lead for the Ryzen 9 7945HX that directly translates to higher frame rates. Multi-core Geekbench: 16,214 vs 1,898 (158.1% advantage for the Ryzen 9 7945HX). L3 cache: 64 MB (total) on the Ryzen 9 7945HX vs 67.5 MB on the Xeon w7-3455.
| Feature | Ryzen 9 7945HX | Xeon w7-3455 |
|---|---|---|
| Cores / Threads | 16 / 32 | 24 / 48+50% |
| Boost Clock | 5.4 GHz+13% | 4.8 GHz |
| Base Clock | 2.5 GHz | 2.5 GHz |
| L3 Cache | 64 MB (total) | 67.5 MB+5% |
| L2 Cache | 1 MB (per core) | 2 MB (per core)+100% |
| Process | CCD = 5 nm, I/O = 6 nm-29% | Intel 7 nm |
| Architecture | Dragon Range-HX (Zen 4) (2023−2024) | Sapphire Rapids (2023−2024) |
| PassMark | 54,425 | 54,925 |
| Cinebench R23 Multi | 34,521 | — |
| Geekbench 6 Single | 2,774+46% | 1,900 |
| Geekbench 6 Multi | 16,214+754% | 1,898 |
Memory & Platform
The Ryzen 9 7945HX uses the FL1 socket (PCIe 5.0), while the Xeon w7-3455 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5200 memory speed. The Xeon w7-3455 supports up to 4096 GB of RAM compared to 64 GB — 193.8% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 7945HX) vs 8 (Xeon w7-3455). PCIe lanes: 28 (Ryzen 9 7945HX) vs 112 (Xeon w7-3455) — the Xeon w7-3455 offers 84 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 7945HX) and Intel W790 (Xeon w7-3455).
| Feature | Ryzen 9 7945HX | Xeon w7-3455 |
|---|---|---|
| Socket | FL1 | LGA4677 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-5200 | DDR5-4800 |
| Max RAM Capacity | 64 GB | 4096 GB+6300% |
| RAM Channels | 2 | 8+300% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 112+300% |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V (Ryzen 9 7945HX) vs true (Xeon w7-3455). The Ryzen 9 7945HX includes integrated graphics (Radeon 610M), while the Xeon w7-3455 requires a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: Ryzen 9 7945HX rivals Core i9-14900HX; Xeon w7-3455 rivals Threadripper PRO 7965WX.
| Feature | Ryzen 9 7945HX | Xeon w7-3455 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Radeon 610M | None |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | AMD-V | true |
| Target Use | Extreme Gaming / Mobile Workstation | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Ryzen 9 7945HX and Xeon w7-3455
