Ryzen 7 7840U vs Ryzen 5 8400F

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 7840U

#57

Ryzen AI 9 365

MSRP: $400|Avg: $400

108%

#64

Ryzen AI Max PRO 390

MSRP: $600|Avg: $600

103%

#70

Ryzen 7 7840U

MSRP: N/A|Avg: N/A

100%

#73

Core i9-13950HX

MSRP: $590|Avg: $199

99%

#82

Core i7-11700B

MSRP: $323|Avg: $311

95%

#83

Core i7-13700HX

MSRP: $485|Avg: N/A

95%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Ryzen 5 8400F

#1

Ryzen 9 7950X

MSRP: $194|Avg: $20

698%

#2

Core i9-10900T

MSRP: $120|Avg: $5

660%

#3

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

479%

#4

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

144%

#5

Ryzen 9 9950X

MSRP: $649|Avg: $129

114%

#6

Ryzen 5 8400F

MSRP: $303|Avg: $55

100%

#7

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

57%

#8

Ryzen 5 2600X

MSRP: $229|Avg: $55

57%

#9

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

51%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

51%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

51%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

50%

#13

Core i3-9100E

MSRP: $202|Avg: $30

49%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

49%

#15

Core i3-8300T

MSRP: $138|Avg: $25

48%

#16

Core Ultra 5 225F

MSRP: $231|Avg: $150

47%

#17

Core Ultra 7 265K

MSRP: $309|Avg: $285

46%

#18

Ryzen 9 3900

MSRP: $499|Avg: $150

46%

#19

Ryzen 5 3600X

MSRP: $249|Avg: $90

45%

#20

Core i7-14700KF

MSRP: $384|Avg: $260

45%

#21

Core i7-14700K

MSRP: $409|Avg: $270

43%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Ryzen 7 7840U leads in gaming performance. However, the Ryzen 5 8400F is the stronger candidate for professional workloads, offering 0% greater multi-core processing power.

Insight	Ryzen 7 7840U	Ryzen 5 8400F
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	✅ More affordable ($0)	⚠️ Higher cost ($55)
Longevity	✨ Modern (Phoenix-U (Zen 4) (2023) / 4 nm)	✨ Modern (Phoenix (2023−2024) / 4 nm)

💎 Value Proposition

Insight	Ryzen 7 7840U	Ryzen 5 8400F
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($0)	⚠️ Higher cost ($55)

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 7840U Benchmark Check

Ryzen 5 8400F Benchmark Check

Technical Specifications

Side-by-side comparison of Ryzen 7 7840U and Ryzen 5 8400F

Ryzen 7 7840U

The Ryzen 7 7840U is manufactured by AMD. It was released in Maio 2023 (2 years ago). It is based on the Phoenix-U (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 (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 28 Watt. Memory support: DDR5-5600. Passmark benchmark score: 24,547 points. Launch price was $299.

Ryzen 5 8400F

The Ryzen 5 8400F is manufactured by AMD. It was released in 1 April 2024 (1 year ago). It is based on the Phoenix (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 4.2 GHz, with boost up to 4.7 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 24,554 points. Launch price was $170.

⚡

Processing Power

The Ryzen 7 7840U packs 8 cores / 16 threads, while the Ryzen 5 8400F offers 6 cores / 12 threads — the Ryzen 7 7840U has 2 more cores. Boost clocks reach 5.1 GHz on the Ryzen 7 7840U versus 4.7 GHz on the Ryzen 5 8400F — a 8.2% clock advantage for the Ryzen 7 7840U (base: 3.3 GHz vs 4.2 GHz). The Ryzen 7 7840U uses the Phoenix-U (Zen 4) (2023) architecture (4 nm), while the Ryzen 5 8400F uses Phoenix (2023−2024) (4 nm). In PassMark, the Ryzen 7 7840U scores 24,547 against the Ryzen 5 8400F's 24,554 — a 0% lead for the Ryzen 5 8400F. Both processors carry 16 MB (total) of L3 cache.

Feature	Ryzen 7 7840U	Ryzen 5 8400F
Cores / Threads	8 / 16+33%	6 / 12
Boost Clock	5.1 GHz+9%	4.7 GHz
Base Clock	3.3 GHz	4.2 GHz+27%
L3 Cache	16 MB (total)	16 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm	4 nm
Architecture	Phoenix-U (Zen 4) (2023)	Phoenix (2023−2024)
PassMark	24,547	24,554

🧠

Memory & Platform

The Ryzen 7 7840U uses the FP8 socket (PCIe 4.0), while the Ryzen 5 8400F uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard.