Core i5-8365U vs Opteron 6378

Core i5-8365U vs Opteron 6378 Performance Spectrum

Core i5-8365U

4 / 8

5,939

+0.8%

5,889

0.0%

Ryzen Threadripper PRO 3975WX

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 i5-8365U vs Opteron 6378 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 Opteron 6378: 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

✅+0.8% higher PassMark.
✅Draws 15W instead of 115W, a 100W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Opteron 6378 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (6 MB vs 8 MB).
❌Less compelling for workstation-style loads than Opteron 6378, which brings 16 cores / 16 threads.

Opteron 6378

2012

Why buy it

✅Better for gaming: +8.7% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 16 cores / 16 threads.

Trade-offs

❌Lower PassMark (5,889 vs 5,939).
❌666.7% higher power demand at 115W vs 15W.

Quick Answers

So, is Core i5-8365U better than Opteron 6378?

Not really, because they are built for different jobs. Opteron 6378 makes more sense for workstation-style multi-core throughput, while Core i5-8365U is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Core i5-8365U is the stronger fit. You are getting 0.8% better PassMark, backed by 4 cores and 8 threads.

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

Core i5-8365U still makes the most sense overall. Core i5-8365U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.8% better PassMark.

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 2012) and more multi-core headroom with 4 cores / 8 threads instead of 16/16. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-8365U vs Opteron 6378 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.

Opteron 6378

The Opteron 6378 is manufactured by AMD. It was released in 5 November 2012 (13 years ago). It is based on the Abu Dhabi (2012) architecture. It features 16 cores and 16 threads. Base frequency is 2.4 GHz, with boost up to 3.3 GHz. L3 cache: 8 MB (total). L2 cache: 16 MB. Built on 32 nm process technology. Socket: G34. Thermal design power (TDP): 115 Watt. Memory support: DDR3. Passmark benchmark score: 5,889 points. Launch price was $396.

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Processing Power

The Core i5-8365U packs 4 cores / 8 threads, while the Opteron 6378 offers 16 cores / 16 threads — the Opteron 6378 has 12 more cores. Boost clocks reach 4.1 GHz on the Core i5-8365U versus 3.3 GHz on the Opteron 6378 — a 21.6% clock advantage for the Core i5-8365U (base: 1.6 GHz vs 2.4 GHz). The Core i5-8365U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Opteron 6378 uses Abu Dhabi (2012) (32 nm). In PassMark, the Core i5-8365U scores 5,939 against the Opteron 6378's 5,889 — a 0.8% lead for the Core i5-8365U. L3 cache: 6 MB (total) on the Core i5-8365U vs 8 MB (total) on the Opteron 6378.

Feature	Core i5-8365U	Opteron 6378
Cores / Threads	4 / 8	16 / 16+300%
Boost Clock	4.1 GHz+24%	3.3 GHz
Base Clock	1.6 GHz	2.4 GHz+50%
L3 Cache	6 MB (total)	8 MB (total)+33%
L2 Cache	256 kB (per core)	16 MB+6300%
Process	14 nm-56%	32 nm
Architecture	Whiskey Lake-U (2018−2019)	Abu Dhabi (2012)
PassMark	5,939	5,889

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Memory & Platform

The Core i5-8365U uses the FCBGA1528 socket (PCIe 3.0), while the Opteron 6378 uses G34 (PCIe 2.0) — making them incompatible on the same motherboard.