Ryzen 9 7945HX vs Ryzen 9 7940HX
Ryzen 9 7945HX
Ryzen 9 7940HX
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
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 7945HX | Ryzen 9 7940HX |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Dragon Range-HX (Zen 4) (2023−2024) / CCD = 5 nm, I/O = 6 nm) | ✨ Modern (Dragon Range-HX (Zen 4) (2023−2024) / 5 nm) |
💎 Value Proposition
| Insight | Ryzen 9 7945HX | Ryzen 9 7940HX |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Ryzen 9 7940HX
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.
Ryzen 9 7940HX
The Ryzen 9 7940HX is manufactured by AMD. It was released in 2024-01-01. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.4 GHz, with boost up to 5.2 GHz. L3 cache: 64 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. Passmark benchmark score: 53,628 points. Launch price was $600.
Processing Power
Both the Ryzen 9 7945HX and Ryzen 9 7940HX share an identical 16-core/32-thread configuration. Boost clocks reach 5.4 GHz on the Ryzen 9 7945HX versus 5.2 GHz on the Ryzen 9 7940HX — a 3.8% clock advantage for the Ryzen 9 7945HX (base: 2.5 GHz vs 2.4 GHz). Both are built on the Dragon Range-HX (Zen 4) (2023−2024) architecture using a CCD = 5 nm, I/O = 6 nm process. In PassMark, the Ryzen 9 7945HX scores 54,425 against the Ryzen 9 7940HX's 53,628 — a 1.5% lead for the Ryzen 9 7945HX. Both processors carry 64 MB (total) of L3 cache.
| Feature | Ryzen 9 7945HX | Ryzen 9 7940HX |
|---|---|---|
| Cores / Threads | 16 / 32 | 16 / 32 |
| Boost Clock | 5.4 GHz+4% | 5.2 GHz |
| Base Clock | 2.5 GHz+4% | 2.4 GHz |
| L3 Cache | 64 MB (total) | 64 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | CCD = 5 nm, I/O = 6 nm | 5 nm |
| Architecture | Dragon Range-HX (Zen 4) (2023−2024) | Dragon Range-HX (Zen 4) (2023−2024) |
| PassMark | 54,425+1% | 53,628 |
| Cinebench R23 Multi | 34,521 | — |
| Geekbench 6 Single | 2,774 | — |
| Geekbench 6 Multi | 16,214 | — |
Memory & Platform
Both processors use the FL1 socket with PCIe 5.0. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 7945HX versus 5200 on the Ryzen 9 7940HX — the Ryzen 9 7940HX supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 7940HX supports up to 128 of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 28 PCIe lanes. Chipset compatibility: FL1 (Ryzen 9 7945HX) and FL1 (Ryzen 9 7940HX).
| Feature | Ryzen 9 7945HX | Ryzen 9 7940HX |
|---|---|---|
| Socket | FL1 | FL1 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-5200 | 5200+103900% |
| Max RAM Capacity | 64 GB+52428700% | 128 |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28 | 28 |
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 VT-x, VT-d, AMD-V (Ryzen 9 7940HX). Both include integrated graphics — Radeon 610M (Ryzen 9 7945HX) and AMD Radeon 610M (Ryzen 9 7940HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: Ryzen 9 7945HX rivals Core i9-14900HX; Ryzen 9 7940HX rivals Core i9-13900HX.
| Feature | Ryzen 9 7945HX | Ryzen 9 7940HX |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Radeon 610M | AMD Radeon 610M |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | AMD-V | VT-x, VT-d, AMD-V |
| Target Use | Extreme Gaming / Mobile Workstation | — |
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