Core i3-8300T vs Core i5-8365UE

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 i3-8300T vs Core i5-8365UE 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 i3-8300T vs Core i5-8365UE: Pros, Cons & Final Verdict

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

Core i3-8300T

2018

Why buy it

✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Costs $159 less on MSRP ($138 MSRP vs $297 MSRP).
✅Delivers 113.0% more PassMark for each dollar spent, at 39.0 vs 18.3 PassMark/$ ($138 MSRP vs $297 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Core i5-8365UE needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-8365UE across 50 shared CPU benchmark tests.
❌Lower PassMark (5,378 vs 5,435).
❌133.3% higher power demand at 35W vs 15W.

Core i5-8365UE

2019

Why buy it

✅Better for gaming: +9.4% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 15W instead of 35W, a 20W reduction.

Trade-offs

❌Smaller total L3 cache (6 MB vs 8 MB).
❌Lower PassMark per dollar, at 18.3 vs 39.0 PassMark/$ ($297 MSRP vs $138 MSRP).
❌No integrated graphics, while Core i3-8300T can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-8365UE better than Core i3-8300T?

Yes. Core i5-8365UE is the better all-around CPU here. It gives you a 9.4% average FPS lead across 50 shared CPU game tests in our data, 1.1% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-8365UE is the better pick. According to our tests, it delivers 9.4% 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 i5-8365UE is the stronger fit. You are getting 1.1% better PassMark, backed by 4 cores and 8 threads.

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

Core i5-8365UE is still the much better call for a fresh build. Core i5-8365UE comes in 115.2% more expensive on MSRP at $297 MSRP versus $138 MSRP, and it still gives you a 9.4% average FPS lead across 50 shared CPU game tests in our data. Core i3-8300T only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2018 platform. Even with 113.0% better value on paper (39.0 vs 18.3 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1151.

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

Core i5-8365UE 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 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-8300T vs Core i5-8365UE Technical Specifications

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

Core i3-8300T

The Core i3-8300T is manufactured by Intel. It was released in 2 April 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 4 cores and 4 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR4-2400. Passmark benchmark score: 5,378 points. Launch price was $138.

Core i5-8365UE

The Core i5-8365UE 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: 5,435 points. Launch price was $297.

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Processing Power

The Core i3-8300T packs 4 cores / 4 threads, matching the Core i5-8365UE's 4 cores. Boost clocks reach 3.2 GHz on the Core i3-8300T versus 4.1 GHz on the Core i5-8365UE — a 24.7% clock advantage for the Core i5-8365UE (base: 3.2 GHz vs 1.6 GHz). The Core i3-8300T uses the Coffee Lake (2017−2019) architecture (14 nm), while the Core i5-8365UE uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Core i3-8300T scores 5,378 against the Core i5-8365UE's 5,435 — a 1.1% lead for the Core i5-8365UE. L3 cache: 8 MB (total) on the Core i3-8300T vs 6 MB (total) on the Core i5-8365UE.

Feature	Core i3-8300T	Core i5-8365UE
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.2 GHz	4.1 GHz+28%
Base Clock	3.2 GHz+100%	1.6 GHz
L3 Cache	8 MB (total)+33%	6 MB (total)
L2 Cache	256K (per core)	256 kB (per core)
Process	14 nm	14 nm
Architecture	Coffee Lake (2017−2019)	Whiskey Lake-U (2018−2019)
PassMark	5,378	5,435+1%

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Memory & Platform

The Core i3-8300T uses the LGA1151 socket (PCIe 3.0), while the Core i5-8365UE uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i3-8300T	Core i5-8365UE
Socket	LGA1151	FCBGA1528
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2400	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i3-8300T) / not specified (Core i5-8365UE). The Core i3-8300T includes integrated graphics (UHD Graphics 630), while the Core i5-8365UE requires a dedicated GPU. Primary use case: Core i3-8300T targets Desktop.

Feature	Core i3-8300T	Core i5-8365UE
Integrated GPU	Yes	—
IGPU Model	UHD Graphics 630	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—
Target Use	Desktop	—

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Value Analysis

At launch, the Core i3-8300T was priced at $138, while the Core i5-8365UE came in at $297. On launch pricing ($138 vs $297), Core i3-8300T was $159 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-8300T delivers 39.0 pts/$ vs 18.3 pts/$ for the Core i5-8365UE — making the Core i3-8300T the 72.2% better value option.

Feature	Core i3-8300T	Core i5-8365UE
MSRP	$138-54%	$297
Performance per Dollar	39.0+113%	18.3
Release Date	2018	2019

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