Ryzen 5 8400F vs Ryzen 7 PRO 7840U

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 5 8400F vs Ryzen 7 PRO 7840U 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 5 8400F vs Ryzen 7 PRO 7840U: Pros, Cons & Final Verdict

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

Ryzen 5 8400F

2024

Why buy it

✅+0.1% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 PRO 7840U across 50 shared CPU benchmark tests.
❌Launch MSRP is still $303 MSRP, while Ryzen 7 PRO 7840U mostly shows up through inconsistent older-market listings.
❌712.5% higher power demand at 65W vs 8W.

Ryzen 7 PRO 7840U

2023

Why buy it

✅Better for gaming: +7.6% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 8W instead of 65W, a 57W reduction.

Trade-offs

❌Lower PassMark (24,531 vs 24,554).

Quick Answers

So, is Ryzen 5 8400F better than Ryzen 7 PRO 7840U?

It depends on what you want from the system. For gaming, Ryzen 7 PRO 7840U is ahead with a 7.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 5 8400F pulls ahead with 0.1% better PassMark.

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

For streaming, content creation, and heavier multitasking, Ryzen 5 8400F is the stronger fit. You are getting 0.1% better PassMark, backed by 6 cores and 12 threads.

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

Ryzen 5 8400F is the better buy right now. Ryzen 5 8400F comes in at an unclear MSRP at $303 MSRP versus unclear MSRP, and it still gives you 0.1% better PassMark. The compromise is that Ryzen 7 PRO 7840U is still the better pure gaming CPU with a 7.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (81.0 vs 0.0 PassMark/$), 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 5 8400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023) and more multi-core headroom with 6 cores / 12 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 5 8400F vs Ryzen 7 PRO 7840U Technical Specifications

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

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.

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.

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Processing Power

The Ryzen 5 8400F packs 6 cores / 12 threads, while the Ryzen 7 PRO 7840U offers 8 cores / 16 threads — the Ryzen 7 PRO 7840U has 2 more cores. Boost clocks reach 4.7 GHz on the Ryzen 5 8400F versus 5.1 GHz on the Ryzen 7 PRO 7840U — a 8.2% clock advantage for the Ryzen 7 PRO 7840U (base: 4.2 GHz vs 3.3 GHz). The Ryzen 5 8400F uses the Phoenix (2023−2024) architecture (4 nm), while the Ryzen 7 PRO 7840U uses Phoenix (Zen 4) (2023) (4 nm). In PassMark, the Ryzen 5 8400F scores 24,554 against the Ryzen 7 PRO 7840U's 24,531 — a 0.1% lead for the Ryzen 5 8400F. L3 cache: 16 MB (total) on the Ryzen 5 8400F vs 16 MB on the Ryzen 7 PRO 7840U.

Feature	Ryzen 5 8400F	Ryzen 7 PRO 7840U
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.7 GHz	5.1 GHz+9%
Base Clock	4.2 GHz+27%	3.3 GHz
L3 Cache	16 MB (total)	16 MB
L2 Cache	1 MB (per core)	8 MB+700%
Process	4 nm	4 nm
Architecture	Phoenix (2023−2024)	Phoenix (Zen 4) (2023)
PassMark	24,554	24,531

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Memory & Platform

The Ryzen 5 8400F uses the AM5 socket (PCIe 4.0), while the Ryzen 7 PRO 7840U uses FP7/FP8 (PCIe 4.0) — making them incompatible on the same motherboard.