Ryzen 7 7840S vs Ryzen 7 8840U

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.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Ryzen 7 7840S

#2

Ryzen 7 7840S

MSRP: N/A|Avg: N/A

100%

#10

Ryzen 7 260

MSRP: $199|Avg: $70

61%

#13

Ryzen 3 210

MSRP: $99|Avg: $99

57%

#14

Ryzen 5 PRO 230

MSRP: $150|Avg: $150

56%

#15

Ryzen 5 220

MSRP: $150|Avg: $150

54%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Analysis: Based on specifications, the Ryzen 7 8840U shows stronger theoretical performance metrics.

Insight	Ryzen 7 7840S	Ryzen 7 8840U
Gaming	Balanced gaming performance	Balanced gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Phoenix-HS (Zen 4) (2023) / 4 nm)	✨ Modern (Hawk Point-U (Zen 4) (2023−2025) / 4 nm)

💎 Value Proposition

Insight	Ryzen 7 7840S	Ryzen 7 8840U
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

Paired with RTX 4090

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.

Ryzen 7 7840S Benchmark Check

Ryzen 7 8840U Benchmark Check

Technical Specifications

Side-by-side comparison of Ryzen 7 7840S and Ryzen 7 8840U

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.

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.

⚡

Processing Power

Both the Ryzen 7 7840S and Ryzen 7 8840U share an identical 8-core/16-thread configuration. Boost clocks reach 5.1 GHz on the Ryzen 7 7840S versus 5.1 GHz on the Ryzen 7 8840U — identical boost frequencies (base: 3.8 GHz vs 3.3 GHz). The Ryzen 7 7840S uses the Phoenix-HS (Zen 4) (2023) architecture (4 nm), while the Ryzen 7 8840U uses Hawk Point-U (Zen 4) (2023−2025) (4 nm). In PassMark, the Ryzen 7 7840S scores 23,290 against the Ryzen 7 8840U's 23,415 — a 0.5% lead for the Ryzen 7 8840U. L3 cache: 16 MB on the Ryzen 7 7840S vs 16 MB (total) on the Ryzen 7 8840U.

Feature	Ryzen 7 7840S	Ryzen 7 8840U
Cores / Threads	8 / 16	8 / 16
Boost Clock	5.1 GHz	5.1 GHz
Base Clock	3.8 GHz+15%	3.3 GHz
L3 Cache	16 MB	16 MB (total)
L2 Cache	8 MB+700%	1 MB (per core)
Process	4 nm	4 nm
Architecture	Phoenix-HS (Zen 4) (2023)	Hawk Point-U (Zen 4) (2023−2025)
PassMark	23,290	23,415
Cinebench R23 Multi	13,500	—
Geekbench 6 Single	2,570	—
Geekbench 6 Multi	13,535	—

🧠

Memory & Platform

The Ryzen 7 7840S uses the FP7/FP7r2/FP8 socket (PCIe 4.0), while the Ryzen 7 8840U uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Ryzen 7 7840S	Ryzen 7 8840U
Socket	FP7/FP7r2/FP8	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: AMD-V (SVM) (Ryzen 7 7840S) / not specified (Ryzen 7 8840U). 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.