Core i5-8400H vs Ryzen 7 3780U

Core i5-8400H vs Ryzen 7 3780U Performance Spectrum

Core i5-8400H

4 / 8

7,456

0.0%

7,483

+0.4%

Ryzen Embedded R1606G

Ryzen Threadripper PRO 7965WX

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.

Core i5-8400H vs Ryzen 7 3780U 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.

Core i5-8400H vs Ryzen 7 3780U: Pros, Cons & Final Verdict

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

Core i5-8400H

2018

Why buy it

✅Better for gaming: +14.0% higher average FPS across 50 shared CPU benchmark tests.
✅+200% larger total L3 cache (12 MB vs 4 MB).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 630, while Ryzen 7 3780U needs a discrete GPU.

Trade-offs

❌Lower PassMark (7,456 vs 7,483).
❌200% higher power demand at 45W vs 15W.

Ryzen 7 3780U

2019

Why buy it

✅+0.4% higher PassMark.
✅Draws 15W instead of 45W, a 30W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-8400H across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 12 MB).
❌No integrated graphics, while Core i5-8400H can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 7 3780U better than Core i5-8400H?

It depends on what you want from the system. For gaming, Core i5-8400H is ahead with a 14.0% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 3780U pulls ahead with 0.4% better PassMark. Core i5-8400H also has the bigger cache pool with 200% larger total L3 cache (12 MB vs 4 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 7 3780U is the stronger fit. You are getting 0.4% better PassMark, backed by 4 cores and 8 threads.

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

Ryzen 7 3780U still makes the most sense overall. Ryzen 7 3780U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.4% better PassMark.

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

Ryzen 7 3780U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2018) and more multi-core headroom with 4 cores / 8 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-8400H vs Ryzen 7 3780U Technical Specifications

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

Core i5-8400H

The Core i5-8400H is manufactured by Intel. It was released in 2 April 2018 (7 years ago). It is based on the Coffee Lake-H (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 2.5 GHz, with boost up to 4.2 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR4. Passmark benchmark score: 7,456 points. Launch price was $250.

Ryzen 7 3780U

The Ryzen 7 3780U is manufactured by AMD. It was released in 22 October 2019 (6 years ago). It is based on the Picasso-U (Zen+) (2019−2020) architecture. It features 4 cores and 8 threads. Base frequency is 2.3 GHz, with boost up to 4 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 12 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 7,483 points. Launch price was $149.

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Processing Power

Both the Core i5-8400H and Ryzen 7 3780U share an identical 4-core/8-thread configuration. Boost clocks reach 4.2 GHz on the Core i5-8400H versus 4 GHz on the Ryzen 7 3780U — a 4.9% clock advantage for the Core i5-8400H (base: 2.5 GHz vs 2.3 GHz). The Core i5-8400H uses the Coffee Lake-H (2018−2019) architecture (14 nm), while the Ryzen 7 3780U uses Picasso-U (Zen+) (2019−2020) (12 nm). In PassMark, the Core i5-8400H scores 7,456 against the Ryzen 7 3780U's 7,483 — a 0.4% lead for the Ryzen 7 3780U. L3 cache: 12 MB (total) on the Core i5-8400H vs 4 MB (total) on the Ryzen 7 3780U.

Feature	Core i5-8400H	Ryzen 7 3780U
Cores / Threads	4 / 8	4 / 8
Boost Clock	4.2 GHz+5%	4 GHz
Base Clock	2.5 GHz+9%	2.3 GHz
L3 Cache	12 MB (total)+200%	4 MB (total)
L2 Cache	256K (per core)	512 kB (per core)+100%
Process	14 nm	12 nm-14%
Architecture	Coffee Lake-H (2018−2019)	Picasso-U (Zen+) (2019−2020)
PassMark	7,456	7,483
Cinebench R23 Multi	4,657	—
Geekbench 6 Single	1,493	—
Geekbench 6 Multi	4,963	—

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Memory & Platform

The Core i5-8400H uses the BGA1440 socket (PCIe 3.0), while the Ryzen 7 3780U uses FP5 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-8400H	Ryzen 7 3780U
Socket	BGA1440	FP5
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4 2666 MHz	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: true (Core i5-8400H) / not specified (Ryzen 7 3780U). The Core i5-8400H includes integrated graphics (Intel UHD Graphics 630), while the Ryzen 7 3780U requires a dedicated GPU. Primary use case: Core i5-8400H targets Mobile.