Core i5-8365U vs Core i7-8565U

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 i5-8365U vs Core i7-8565U 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 i5-8365U vs Core i7-8565U: Pros, Cons & Final Verdict

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

Core i5-8365U

2019

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-8565U across 50 shared CPU benchmark tests.
❌Lower PassMark (5,939 vs 5,976).
❌Smaller total L3 cache (6 MB vs 8 MB).

Core i7-8565U

2018

Why buy it

✅Better for gaming: +7.2% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Core i7-8565U better than Core i5-8365U?

Yes. Core i7-8565U is the better all-around CPU here. It gives you a 7.2% average FPS lead across 50 shared CPU game tests in our data and 0.6% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-8565U is the better pick. According to our tests, it delivers 7.2% 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, Core i7-8565U is the stronger fit. You are getting 0.6% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 33.3% larger total L3 cache (8 MB vs 6 MB).

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

Core i7-8565U still makes the most sense overall. Core i7-8565U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 7.2% average FPS lead across 50 shared CPU game tests in our data.

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

Core i5-8365U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2018). That makes it the safer long-term bet.

Core i5-8365U vs Core i7-8565U Technical Specifications

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

Core i5-8365U

The Core i5-8365U is manufactured by Intel. It was released in 16 April 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.6 GHz, with boost up to 4.1 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 5,939 points. Launch price was $297.

Core i7-8565U

The Core i7-8565U is manufactured by Intel. It was released in 1 October 2018 (7 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.8 GHz, with boost up to 4.6 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 5,976 points. Launch price was $409.

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Processing Power

Both the Core i5-8365U and Core i7-8565U share an identical 4-core/8-thread configuration. Boost clocks reach 4.1 GHz on the Core i5-8365U versus 4.6 GHz on the Core i7-8565U — a 11.5% clock advantage for the Core i7-8565U (base: 1.6 GHz vs 1.8 GHz). Both are built on the Whiskey Lake-U (2018−2019) architecture using a 14 nm process. In PassMark, the Core i5-8365U scores 5,939 against the Core i7-8565U's 5,976 — a 0.6% lead for the Core i7-8565U. L3 cache: 6 MB (total) on the Core i5-8365U vs 8 MB (total) on the Core i7-8565U.

Feature	Core i5-8365U	Core i7-8565U
Cores / Threads	4 / 8	4 / 8
Boost Clock	4.1 GHz	4.6 GHz+12%
Base Clock	1.6 GHz	1.8 GHz+12%
L3 Cache	6 MB (total)	8 MB (total)+33%
L2 Cache	256 kB (per core)	256 kB (per core)
Process	14 nm	14 nm
Architecture	Whiskey Lake-U (2018−2019)	Whiskey Lake-U (2018−2019)
PassMark	5,939	5,976