Ryzen 7 7800X3D vs Ryzen 9 7940H
Ryzen 7 7800X3D
Ryzen 9 7940H
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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 7 7800X3D
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 7800X3D | Ryzen 9 7940H |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($384) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm) | ✨ Modern (Phoenix (2023−2024) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 7 7800X3D | Ryzen 9 7940H |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($384) | ✅ 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 Ryzen 7 7800X3D and Ryzen 9 7940H
Ryzen 7 7800X3D
The Ryzen 7 7800X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.
Ryzen 9 7940H
The Ryzen 9 7940H is manufactured by AMD. It was released in Janeiro 2023 (2 years ago). It is based on the Phoenix (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 4 GHz, with boost up to 5.2 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 35 Watt. Memory support: DDR5-5600. Passmark benchmark score: 29,151 points. Launch price was $299.
Processing Power
Both the Ryzen 7 7800X3D and Ryzen 9 7940H share an identical 8-core/16-thread configuration. Boost clocks reach 5 GHz on the Ryzen 7 7800X3D versus 5.2 GHz on the Ryzen 9 7940H — a 3.9% clock advantage for the Ryzen 9 7940H (base: 4.4 GHz vs 4 GHz). The Ryzen 7 7800X3D uses the Raphael (Zen4) (2022−2023) architecture (5 nm), while the Ryzen 9 7940H uses Phoenix (2023−2024) (4 nm). In PassMark, the Ryzen 7 7800X3D scores 34,293 against the Ryzen 9 7940H's 29,151 — a 16.2% lead for the Ryzen 7 7800X3D. Cinebench R23 multi-core: 18,500 vs 17,200 (7.3% advantage for the Ryzen 7 7800X3D). Geekbench 6 single-core — the metric most relevant to gaming — records 2,700 vs 2,646, a 2% lead for the Ryzen 7 7800X3D that directly translates to higher frame rates. Multi-core Geekbench: 15,000 vs 13,495 (10.6% advantage for the Ryzen 7 7800X3D). L3 cache: 96 MB (total) on the Ryzen 7 7800X3D vs 16 MB (total) on the Ryzen 9 7940H.
| Feature | Ryzen 7 7800X3D | Ryzen 9 7940H |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 5 GHz | 5.2 GHz+4% |
| Base Clock | 4.4 GHz+10% | 4 GHz |
| L3 Cache | 96 MB (total)+500% | 16 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 5 nm | 4 nm-20% |
| Architecture | Raphael (Zen4) (2022−2023) | Phoenix (2023−2024) |
| PassMark | 34,293+18% | 29,151 |
| Cinebench R23 Multi | 18,500+8% | 17,200 |
| Geekbench 6 Single | 2,700+2% | 2,646 |
| Geekbench 6 Multi | 15,000+11% | 13,495 |
Memory & Platform
The Ryzen 7 7800X3D uses the AM5 socket (PCIe 5.0), while the Ryzen 9 7940H uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR5-5200 memory speed. The Ryzen 9 7940H supports up to 256 GB of RAM compared to 128 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Ryzen 7 7800X3D) vs 20 (Ryzen 9 7940H) — the Ryzen 7 7800X3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X670E,X670,B650E,B650,A620 (Ryzen 7 7800X3D) and FP7,FP7r2,FP8 (Ryzen 9 7940H).
| Feature | Ryzen 7 7800X3D | Ryzen 9 7940H |
|---|---|---|
| Socket | AM5 | FP8 |
| PCIe Generation | PCIe 5.0+25% | PCIe 4.0 |
| Max RAM Speed | DDR5-5200 | DDR5-5600 |
| Max RAM Capacity | 128 GB | 256 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 28+40% | 20 |
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 7 7800X3D) vs AMD-V, SVM (Ryzen 9 7940H). Both include integrated graphics — AMD Radeon Graphics (2-core) (Ryzen 7 7800X3D) and Radeon 780M (Ryzen 9 7940H) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming, Ryzen 9 7940H targets High-performance Gaming Laptop. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K; Ryzen 9 7940H rivals Core i9-13900H.
| Feature | Ryzen 7 7800X3D | Ryzen 9 7940H |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | AMD Radeon Graphics (2-core) | Radeon 780M |
| Unlocked | Yes | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | AMD-V | AMD-V, SVM |
| Target Use | Gaming | High-performance Gaming Laptop |
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