Ryzen 7 7840HS vs Ryzen 9 5900X

CPU

GPU

Ryzen 7 7840HS

8 Cores16 Thrd35 WWMax: 5.1 GHz2023

Ryzen family

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Ryzen 9 5900X

12 Cores24 Thrd105 WWMax: 4.8 GHz2020

Ryzen family

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Ryzen 7 7840HS vs Ryzen 9 5900X Performance Spectrum

Ryzen 7 7840HS

8 / 16

28,538

0.0%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 9965WX

Ryzen 9 5900X

12 / 24

38,955

+36.5%

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

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.

Ryzen 7 7840HS vs Ryzen 9 5900X FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Ryzen 7 7840HS vs Ryzen 9 5900X: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Ryzen 7 7840HS

2023

Why buy it

✅Draws 35W instead of 105W, a 70W reduction.
✅Newer platform on FP8 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 780M, while Ryzen 9 5900X needs a discrete GPU.

Trade-offs

❌Lower Geekbench single-core performance for gaming (1,962 vs 2,174).
❌Lower Cinebench R23 multi-core (16,854 vs 21,000).
❌Smaller total L3 cache (16 MB vs 64 MB).

Ryzen 9 5900X

2020

Why buy it

✅+10.8% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅+300% larger total L3 cache (64 MB vs 16 MB).
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $549 MSRP, while Ryzen 7 7840HS mostly shows up through inconsistent older-market listings.
❌200% higher power demand at 105W vs 35W.
❌Older platform position on AM4 with DDR4, while Ryzen 7 7840HS moves to FP8 and DDR5.
❌No integrated graphics, while Ryzen 7 7840HS can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 5900X better than Ryzen 7 7840HS?

Yes. Ryzen 9 5900X is the better all-around CPU here. It gives you a 2.2% average FPS lead across 50 shared CPU game tests in our data, 24.6% better Cinebench R23 multi-core, and 36.5% higher PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 5900X is the better pick. According to our tests, it delivers 2.2% more average FPS across 50 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Ryzen 9 5900X is the stronger fit. You are getting 24.6% better Cinebench R23 multi-core, backed by 12 cores and 24 threads. It also has the larger cache pool with 300% larger total L3 cache (64 MB vs 16 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen 9 5900X is the better buy right now. Ryzen 9 5900X comes in at an unclear MSRP at $549 MSRP versus unclear MSRP, and it still gives you a 2.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

Which one is more future-proof for 2026 and beyond?

Ryzen 7 7840HS makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020) and a healthier platform with FP8 and DDR5 instead of AM4. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 7 7840HS vs Ryzen 9 5900X Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Ryzen 7 7840HS

The Ryzen 7 7840HS is manufactured by AMD. It was released in Janeiro 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 (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 35 Watt. Memory support: DDR5. Passmark benchmark score: 28,538 points. Launch price was $299.

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

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Processing Power

The Ryzen 7 7840HS packs 8 cores / 16 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 4 more cores. Boost clocks reach 5.1 GHz on the Ryzen 7 7840HS versus 4.8 GHz on the Ryzen 9 5900X — a 6.1% clock advantage for the Ryzen 7 7840HS (base: 3.8 GHz vs 3.7 GHz). The Ryzen 7 7840HS uses the Phoenix-HS (Zen 4) (2023) architecture (4 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 7 7840HS scores 28,538 against the Ryzen 9 5900X's 38,955 — a 30.9% lead for the Ryzen 9 5900X. Cinebench R23 multi-core: 16,854 vs 21,000 (21.9% advantage for the Ryzen 9 5900X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,962 vs 2,174, a 10.3% lead for the Ryzen 9 5900X that directly translates to higher frame rates. Multi-core Geekbench: 11,898 vs 11,888 (0.1% advantage for the Ryzen 7 7840HS). L3 cache: 16 MB (total) on the Ryzen 7 7840HS vs 64 MB on the Ryzen 9 5900X.

Feature	Ryzen 7 7840HS	Ryzen 9 5900X
Cores / Threads	8 / 16	12 / 24+50%
Boost Clock	5.1 GHz+6%	4.8 GHz
Base Clock	3.8 GHz+3%	3.7 GHz
L3 Cache	16 MB (total)	64 MB+300%
L2 Cache	1 MB (per core)	512K (per core)+51100%
Process	4 nm-43%	7 nm, 12 nm
Architecture	Phoenix-HS (Zen 4) (2023)	Vermeer (Zen3) (2020−2022)
PassMark	28,538	38,955+37%
Cinebench R23 Multi	16,854	21,000+25%
Geekbench 6 Single	1,962	2,174+11%
Geekbench 6 Multi	11,898	11,888

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Memory & Platform

The Ryzen 7 7840HS uses the FP8 socket (PCIe 4.0), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches LPDDR5-7500 / DDR5-5600 on the Ryzen 7 7840HS versus DDR4-3200 on the Ryzen 9 5900X — the Ryzen 7 7840HS supports 134.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 7840HS supports up to 256 GB of RAM compared to 128 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Ryzen 7 7840HS) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FP7,FP7r2,FP8 (Ryzen 7 7840HS) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).

Feature	Ryzen 7 7840HS	Ryzen 9 5900X
Socket	FP8	AM4
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	LPDDR5-7500 / DDR5-5600+134%	DDR4-3200
Max RAM Capacity	256 GB+100%	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	24+20%

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Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 7 7840HS supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V, SVM (Ryzen 7 7840HS) vs AMD-V (Ryzen 9 5900X). The Ryzen 7 7840HS includes integrated graphics (Radeon 780M), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Ryzen 7 7840HS targets High-performance Laptop / Mini-PC, Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 7 7840HS rivals Core i7-13700H; Ryzen 9 5900X rivals Core i9-12900K.

Feature	Ryzen 7 7840HS	Ryzen 9 5900X
Integrated GPU	Yes	No
IGPU Model	Radeon 780M	—
Unlocked	Yes	Yes
AVX-512	Yes	No
Virtualization	AMD-V, SVM	AMD-V
Target Use	High-performance Laptop / Mini-PC	Workstation