Ryzen 7 PRO 8840U vs Ryzen 9 5900X

CPU

GPU

Ryzen 7 PRO 8840U

8 Cores16 Thrd28 WWMax: 5.1 GHz2024

Similar parts

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Ryzen 9 5900X

12 Cores24 Thrd105 WWMax: 4.8 GHz2020

Ryzen family

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Ryzen 7 PRO 8840U vs Ryzen 9 5900X Performance Spectrum

Ryzen 7 PRO 8840U

8 / 16

23,934

0.0%

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen 9 5900X

12 / 24

38,955

+62.8%

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 PRO 8840U 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 PRO 8840U 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 PRO 8840U

2024

Why buy it

✅Draws 28W instead of 105W, a 77W reduction.
✅Newer platform on FP7 with DDR5 support instead of AM4 and DDR4.
✅Integrated graphics onboard with Radeon 780M, while Ryzen 9 5900X needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (13,450 vs 21,000).
❌Smaller total L3 cache (16 MB vs 64 MB).

Ryzen 9 5900X

2020

Why buy it

✅Better for gaming: +11.0% higher average FPS across 50 shared CPU benchmark tests.
✅+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 PRO 8840U mostly shows up through inconsistent older-market listings.
❌275% higher power demand at 105W vs 28W.
❌Older platform position on AM4 with DDR4, while Ryzen 7 PRO 8840U moves to FP7 and DDR5.
❌No integrated graphics, while Ryzen 7 PRO 8840U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 5900X better than Ryzen 7 PRO 8840U?

Yes. Ryzen 9 5900X is the better all-around CPU here. It gives you a 11.0% average FPS lead across 50 shared CPU game tests in our data, 56.1% better Cinebench R23 multi-core, and 62.8% 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 11.0% 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 56.1% 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 $549 MSRP versus unclear MSRP, and it still gives you a 11.0% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), 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 PRO 8840U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2020) and a healthier platform with FP7 and DDR5 instead of AM4. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 7 PRO 8840U vs Ryzen 9 5900X Technical Specifications

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

Ryzen 7 PRO 8840U

The Ryzen 7 PRO 8840U is manufactured by AMD. It was released in 16 April 2024 (1 year ago). It is based on the Hawk Point (2024−2025) 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: FP7. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 23,934 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 PRO 8840U 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 PRO 8840U versus 4.8 GHz on the Ryzen 9 5900X — a 6.1% clock advantage for the Ryzen 7 PRO 8840U (base: 3.3 GHz vs 3.7 GHz). The Ryzen 7 PRO 8840U uses the Hawk Point (2024−2025) architecture (4 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Ryzen 7 PRO 8840U scores 23,934 against the Ryzen 9 5900X's 38,955 — a 47.8% lead for the Ryzen 9 5900X. Cinebench R23 multi-core: 13,450 vs 21,000 (43.8% advantage for the Ryzen 9 5900X). Geekbench 6 single-core — the metric most relevant to gaming — records 2,400 vs 2,174, a 9.9% lead for the Ryzen 7 PRO 8840U that directly translates to higher frame rates. Multi-core Geekbench: 9,500 vs 11,888 (22.3% advantage for the Ryzen 9 5900X). L3 cache: 16 MB (total) on the Ryzen 7 PRO 8840U vs 64 MB on the Ryzen 9 5900X.

Feature	Ryzen 7 PRO 8840U	Ryzen 9 5900X
Cores / Threads	8 / 16	12 / 24+50%
Boost Clock	5.1 GHz+6%	4.8 GHz
Base Clock	3.3 GHz	3.7 GHz+12%
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	Hawk Point (2024−2025)	Vermeer (Zen3) (2020−2022)
PassMark	23,934	38,955+63%
Cinebench R23 Multi	13,450	21,000+56%
Geekbench 6 Single	2,400+10%	2,174
Geekbench 6 Multi	9,500	11,888+25%

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Memory & Platform

The Ryzen 7 PRO 8840U uses the FP7 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 DDR5-5600 on the Ryzen 7 PRO 8840U versus DDR4-3200 on the Ryzen 9 5900X — the Ryzen 7 PRO 8840U supports 75% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 PRO 8840U 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 PRO 8840U) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FP7,FP8 (Ryzen 7 PRO 8840U) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).

Feature	Ryzen 7 PRO 8840U	Ryzen 9 5900X
Socket	FP7	AM4
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR5-5600+75%	DDR4-3200
Max RAM Capacity	256 GB+100%	128 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	24+20%

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Advanced Features

Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 7 PRO 8840U supports AVX-512 instructions — important for machine learning and scientific applications. Both support AMD-V virtualization. The Ryzen 7 PRO 8840U includes integrated graphics (Radeon 780M), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Ryzen 7 PRO 8840U targets Gaming, Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 7 PRO 8840U rivals Core Ultra 7 164U; Ryzen 9 5900X rivals Core i9-12900K.