Ryzen 9 6900HX
VS
Ryzen 7 PRO 7840U

Ryzen 9 6900HX vs Ryzen 7 PRO 7840U

AMD

Ryzen 9 6900HX

8 Cores16 Thrd45 WWMax: 4.9 GHz2022
VS
AMD

Ryzen 7 PRO 7840U

8 Cores16 Thrd8 WWMax: 5.1 GHz2023

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.

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

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Ryzen 7 PRO 7840U

#82
Core i7-11700B
MSRP: $323|Avg: $311
109%
#83
Core i7-13700HX
MSRP: $485|Avg: N/A
108%
#86
Ryzen AI 9 HX PRO 370
MSRP: $500|Avg: $500
107%
#96
Ryzen AI Max PRO 380
MSRP: $400|Avg: $400
100%
#97
Core Ultra 5 226V
MSRP: $300|Avg: $300
100%
#97
Ryzen 7 PRO 7840U
MSRP: N/A|Avg: N/A
100%
#101
Core i5-1350P
MSRP: $320|Avg: $250
96%
#102
Core i3-1220P
MSRP: $250|Avg: $150
95%
#107
Core Ultra 5 228V
MSRP: $295|Avg: $295
94%
#111
Ryzen 5 PRO 5675U
MSRP: N/A|Avg: $180
93%
Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Ryzen 7 PRO 7840U delivers superior performance across the board. It outperforms the Ryzen 9 6900HX in both compute-intensive tasks (1.2% faster) and gaming workloads.
InsightRyzen 9 6900HXRyzen 7 PRO 7840U
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 (Zen 4) (2023) / 4 nm)

💎 Value Proposition

InsightRyzen 9 6900HXRyzen 7 PRO 7840U
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.

Technical Specifications

Side-by-side comparison of Ryzen 9 6900HX and Ryzen 7 PRO 7840U

AMD

Ryzen 9 6900HX

The Ryzen 9 6900HX 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): 45 Watt. Memory support: DDR5. Passmark benchmark score: 24,248 points. Launch price was $299.

AMD

Ryzen 7 PRO 7840U

The Ryzen 7 PRO 7840U is manufactured by AMD. It was released in 3 May 2023 (2 years ago). It is based on the Phoenix (Zen 4) (2023) 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. L2 cache: 8 MB. Built on 4 nm process technology. Socket: FP7/FP8. Thermal design power (TDP): 28 Watt. Memory support: LPDDR5x, DDR5. Passmark benchmark score: 24,531 points. Launch price was $299.

Processing Power

Both the Ryzen 9 6900HX and Ryzen 7 PRO 7840U share an identical 8-core/16-thread configuration. Boost clocks reach 4.9 GHz on the Ryzen 9 6900HX versus 5.1 GHz on the Ryzen 7 PRO 7840U — a 4% clock advantage for the Ryzen 7 PRO 7840U (base: 3.3 GHz vs 3.3 GHz). The Ryzen 9 6900HX uses the Rembrandt-H (Zen 3+) (2022) architecture (6 nm), while the Ryzen 7 PRO 7840U uses Phoenix (Zen 4) (2023) (4 nm). In PassMark, the Ryzen 9 6900HX scores 24,248 against the Ryzen 7 PRO 7840U's 24,531 — a 1.2% lead for the Ryzen 7 PRO 7840U. L3 cache: 16 MB (total) on the Ryzen 9 6900HX vs 16 MB on the Ryzen 7 PRO 7840U.

FeatureRyzen 9 6900HXRyzen 7 PRO 7840U
Cores / Threads
8 / 16
8 / 16
Boost Clock
4.9 GHz
5.1 GHz+4%
Base Clock
3.3 GHz
3.3 GHz
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 (Zen 4) (2023)
PassMark
24,248
24,531+1%
🧠

Memory & Platform

The Ryzen 9 6900HX uses the FP7 socket (PCIe 4.0), while the Ryzen 7 PRO 7840U uses FP7/FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

FeatureRyzen 9 6900HXRyzen 7 PRO 7840U
Socket
FP7
FP7/FP8
PCIe Generation
PCIe 4.0
PCIe 4.0