Ryzen 7 PRO 7840HS vs EPYC 7451

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 EPYC 7451

#3

Xeon W-11955M

MSRP: $623|Avg: $450

13%

#4

Xeon W-11865MLE

MSRP: $467|Avg: $350

13%

#5

Xeon W-11865MRE

MSRP: $600|Avg: $600

12%

#6

Xeon Gold 6240R

MSRP: $2444|Avg: N/A

147%

#10

Xeon 6337P

MSRP: $60|Avg: $5

131%

#15

EPYC 9174F

MSRP: $194|Avg: $30

101%

#16

EPYC 7302

MSRP: $978|Avg: $109

101%

#18

EPYC 7451

MSRP: N/A|Avg: N/A

100%

#21

Xeon Platinum 8260M

MSRP: $7705|Avg: N/A

92%

#22

Xeon Platinum 8268

MSRP: $6302|Avg: N/A

91%

#24

Xeon Gold 6130H

MSRP: $1894|Avg: N/A

89%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Generational Difference: This comparison involves processors from different technological eras. The Ryzen 7 PRO 7840HS (2023) utilizes 4 nm technology and modern memory, providing a fundamental performance advantage.

Insight	Ryzen 7 PRO 7840HS	EPYC 7451
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	✅ Better multi-core power	❌ Weaker in multi-core tasks
Price	Equivalent pricing	Equivalent pricing
Longevity	✨ Modern (Phoenix-HS (Zen 4) (2023) / 4 nm)	✨ Modern (Naples (2017−2018) / 14 nm)

💎 Value Proposition

The EPYC 7451 (2017) relies on 14 nm technology and **DDR4 Eight-channel**, placing it in a different performance category relative to modern standards.

Insight	Ryzen 7 PRO 7840HS	EPYC 7451
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 PRO 7840HS Benchmark Check

EPYC 7451 Benchmark Check

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Technical Specifications

Side-by-side comparison of Ryzen 7 PRO 7840HS and EPYC 7451

Ryzen 7 PRO 7840HS

The Ryzen 7 PRO 7840HS is manufactured by AMD. It was released in 13 June 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/FP8. Thermal design power (TDP): 8 MB + 16 MB. Passmark benchmark score: 26,852 points. Launch price was $299.

EPYC 7451

The EPYC 7451 is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 24 cores and 48 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 180 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 26,639 points. Launch price was $2,400.

⚡

Processing Power

The Ryzen 7 PRO 7840HS packs 8 cores / 16 threads, while the EPYC 7451 offers 24 cores / 48 threads — the EPYC 7451 has 16 more cores. Boost clocks reach 5.1 GHz on the Ryzen 7 PRO 7840HS versus 3.2 GHz on the EPYC 7451 — a 45.8% clock advantage for the Ryzen 7 PRO 7840HS (base: 3.8 GHz vs 2.3 GHz). The Ryzen 7 PRO 7840HS uses the Phoenix-HS (Zen 4) (2023) architecture (4 nm), while the EPYC 7451 uses Naples (2017−2018) (14 nm). In PassMark, the Ryzen 7 PRO 7840HS scores 26,852 against the EPYC 7451's 26,639 — a 0.8% lead for the Ryzen 7 PRO 7840HS. L3 cache: 16 MB on the Ryzen 7 PRO 7840HS vs 64 MB (total) on the EPYC 7451.

Feature	Ryzen 7 PRO 7840HS	EPYC 7451
Cores / Threads	8 / 16	24 / 48+200%
Boost Clock	5.1 GHz+59%	3.2 GHz
Base Clock	3.8 GHz+65%	2.3 GHz
L3 Cache	16 MB	64 MB (total)+300%
L2 Cache	8 MB+1500%	512K (per core)
Process	4 nm-71%	14 nm
Architecture	Phoenix-HS (Zen 4) (2023)	Naples (2017−2018)
PassMark	26,852	26,639

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Memory & Platform

The Ryzen 7 PRO 7840HS uses the FP7/FP8 socket (PCIe 4.0), while the EPYC 7451 uses TR4 (PCIe 4.0) — making them incompatible on the same motherboard.