
Ryzen 7 8840U vs Ryzen 7 7840S

Ryzen 7 8840U

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
Performance Per Dollar Ryzen 7 7840S
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 8840U | Ryzen 7 7840S |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Hawk Point-U (Zen 4) (2023−2025) / 4 nm) | ✨ Modern (Phoenix-HS (Zen 4) (2023) / 4 nm) |
💎 Value Proposition
| Insight | Ryzen 7 8840U | 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 7 8840U and Ryzen 7 7840S

Ryzen 7 8840U
The Ryzen 7 8840U is manufactured by AMD. It was released in 6 December 2023 (1 year ago). It is based on the Hawk Point-U (Zen 4) (2023−2025) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 23,415 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 7 8840U and Ryzen 7 7840S share an identical 8-core/16-thread configuration. Boost clocks reach 5.1 GHz on the Ryzen 7 8840U versus 5.1 GHz on the Ryzen 7 7840S — identical boost frequencies (base: 3.3 GHz vs 3.8 GHz). The Ryzen 7 8840U uses the Hawk Point-U (Zen 4) (2023−2025) architecture (4 nm), while the Ryzen 7 7840S uses Phoenix-HS (Zen 4) (2023) (4 nm). In PassMark, the Ryzen 7 8840U scores 23,415 against the Ryzen 7 7840S's 23,290 — a 0.5% lead for the Ryzen 7 8840U. L3 cache: 16 MB (total) on the Ryzen 7 8840U vs 16 MB on the Ryzen 7 7840S.
| Feature | Ryzen 7 8840U | Ryzen 7 7840S |
|---|---|---|
| Cores / Threads | 8 / 16 | 8 / 16 |
| Boost Clock | 5.1 GHz | 5.1 GHz |
| Base Clock | 3.3 GHz | 3.8 GHz+15% |
| L3 Cache | 16 MB (total) | 16 MB |
| L2 Cache | 1 MB (per core) | 8 MB+700% |
| Process | 4 nm | 4 nm |
| Architecture | Hawk Point-U (Zen 4) (2023−2025) | Phoenix-HS (Zen 4) (2023) |
| PassMark | 23,415 | 23,290 |
| Cinebench R23 Multi | — | 13,500 |
| Geekbench 6 Single | — | 2,570 |
| Geekbench 6 Multi | — | 13,535 |
Memory & Platform
The Ryzen 7 8840U uses the FP8 socket (PCIe 4.0), while the Ryzen 7 7840S uses FP7/FP7r2/FP8 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 7 8840U | Ryzen 7 7840S |
|---|---|---|
| Socket | FP8 | FP7/FP7r2/FP8 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Max RAM Speed | — | DDR5-5600, LPDDR5x-7500 |
| Max RAM Capacity | — | 256 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 20 |
Advanced Features
Virtualization: not specified (Ryzen 7 8840U) / AMD-V (SVM) (Ryzen 7 7840S). The Ryzen 7 7840S includes integrated graphics (Radeon 780M), while the Ryzen 7 8840U requires a dedicated GPU. Primary use case: Ryzen 7 7840S targets Gaming. Direct competitor: Ryzen 7 7840S rivals Core i7-1360P.
| Feature | Ryzen 7 8840U | Ryzen 7 7840S |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Radeon 780M |
| Unlocked | — | No |
| AVX-512 | — | Yes |
| Virtualization | — | AMD-V (SVM) |
| Target Use | — | Gaming |
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