Ryzen 9 6900HS vs Ryzen 7 7840S
Ryzen 9 6900HS
Ryzen 7 7840S
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 6900HS
Performance Per Dollar Ryzen 7 7840S
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 9 6900HS | Ryzen 7 7840S |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Rembrandt-H (Zen 3+) (2022) / 6 nm) | ✨ Modern (Phoenix-HS (Zen 4) (2023) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 9 6900HS | Ryzen 7 7840S |
|---|---|---|
| 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 6900HS and Ryzen 7 7840S
Ryzen 9 6900HS
The Ryzen 9 6900HS is manufactured by AMD. It was released in Janeiro 2022 (3 years ago). It is based on the Rembrandt-H (Zen 3+) (2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 512K (per core). Built on 6 nm process technology. Socket: FP7. Thermal design power (TDP): 35 Watt. Memory support: DDR5. Passmark benchmark score: 23,040 points. Launch price was $299.
Ryzen 7 7840S
The Ryzen 7 7840S is manufactured by AMD. It was released in 5 January 2023 (2 years ago). It is based on the Phoenix-HS (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 8 MB. Built on 4 nm process technology. Socket: FP7/FP7r2/FP8. Thermal design power (TDP): 8 MB + 16 MB. Memory support: DDR5. Passmark benchmark score: 23,290 points. Launch price was $299.
Processing Power
Both the Ryzen 9 6900HS and Ryzen 7 7840S share an identical 8-core/16-thread configuration. Boost clocks reach 4.9 GHz on the Ryzen 9 6900HS versus 5.1 GHz on the Ryzen 7 7840S — a 4% clock advantage for the Ryzen 7 7840S (base: 3.3 GHz vs 3.8 GHz). The Ryzen 9 6900HS uses the Rembrandt-H (Zen 3+) (2022) architecture (6 nm), while the Ryzen 7 7840S uses Phoenix-HS (Zen 4) (2023) (4 nm). In PassMark, the Ryzen 9 6900HS scores 23,040 against the Ryzen 7 7840S's 23,290 — a 1.1% lead for the Ryzen 7 7840S. Cinebench R23 multi-core: 13,445 vs 13,500 (0.4% advantage for the Ryzen 7 7840S). Geekbench 6 single-core — the metric most relevant to gaming — records 1,854 vs 2,570, a 32.4% lead for the Ryzen 7 7840S that directly translates to higher frame rates. Multi-core Geekbench: 8,732 vs 13,535 (43.1% advantage for the Ryzen 7 7840S). L3 cache: 16 MB (total) on the Ryzen 9 6900HS vs 16 MB on the Ryzen 7 7840S.
| Feature | Ryzen 9 6900HS | Ryzen 7 7840S |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 4.9 GHz | 5.1 GHz+4% |
| Base Clock | 3.3 GHz | 3.8 GHz+15% |
| L3 Cache | 16 MB (total) | 16 MB |
| L2 Cache | 512K (per core) | 8 MB+1500% |
| Process | 6 nm | 4 nm-33% |
| Architecture | Rembrandt-H (Zen 3+) (2022) | Phoenix-HS (Zen 4) (2023) |
| PassMark | 23,040 | 23,290+1% |
| Cinebench R23 Multi | 13,445 | 13,500 |
| Geekbench 6 Single | 1,854 | 2,570+39% |
| Geekbench 6 Multi | 8,732 | 13,535+55% |
Memory & Platform
The Ryzen 9 6900HS uses the FP7 socket (PCIe 4.0), while the Ryzen 7 7840S uses FP7/FP7r2/FP8 (PCIe 4.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800 memory speed. The Ryzen 7 7840S supports up to 256 GB of RAM compared to 64 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: FP7 (Ryzen 9 6900HS) and SoC (Ryzen 7 7840S).
| Feature | Ryzen 9 6900HS | Ryzen 7 7840S |
|---|---|---|
| Socket | FP7 | FP7/FP7r2/FP8 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | DDR5-4800 | DDR5-5600, LPDDR5x-7500 |
| Max RAM Capacity | 64 GB | 256 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 20 | 20 |
Advanced Features
Only the Ryzen 9 6900HS has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 7 7840S supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 6900HS) vs AMD-V (SVM) (Ryzen 7 7840S). Both include integrated graphics — Radeon 680M (Ryzen 9 6900HS) and Radeon 780M (Ryzen 7 7840S) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 7840S targets Gaming. Direct competitor: Ryzen 7 7840S rivals Core i7-1360P.
| Feature | Ryzen 9 6900HS | Ryzen 7 7840S |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Radeon 680M | Radeon 780M |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | AMD-V | AMD-V (SVM) |
| Target Use | — | Gaming |
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