Opteron 6366 HE vs Ryzen 3 3300U

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.

Opteron 6366 HE vs Ryzen 3 3300U 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.

Opteron 6366 HE vs Ryzen 3 3300U: Pros, Cons & Final Verdict

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

Opteron 6366 HE

2012

Why buy it

✅Better for gaming: +16.9% higher average FPS across 50 shared CPU benchmark tests.
✅+100% larger total L3 cache (8 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 16 cores / 16 threads.

Trade-offs

❌Lower PassMark (5,613 vs 5,686).
❌466.7% higher power demand at 85W vs 15W.

Ryzen 3 3300U

2019

Why buy it

✅+1.3% higher PassMark.
✅Draws 15W instead of 85W, a 70W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Opteron 6366 HE across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Less compelling for workstation-style loads than Opteron 6366 HE, which brings 16 cores / 16 threads.

Quick Answers

So, is Ryzen 3 3300U better than Opteron 6366 HE?

Not really, because they are built for different jobs. Opteron 6366 HE makes more sense for workstation-style multi-core throughput, while Ryzen 3 3300U 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, Ryzen 3 3300U is the stronger fit. You are getting 1.3% better PassMark, backed by 4 cores and 4 threads.

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

Ryzen 3 3300U still makes the most sense overall. Ryzen 3 3300U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 1.3% better PassMark.

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

Ryzen 3 3300U 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 / 4 threads instead of 16/16. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Opteron 6366 HE vs Ryzen 3 3300U Technical Specifications

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

Opteron 6366 HE

The Opteron 6366 HE is manufactured by AMD. It was released in 2015-01-01. It is based on the Abu Dhabi (2012) architecture. It features 16 cores and 16 threads. Base frequency is 1.8 GHz, with boost up to 3.1 GHz. L3 cache: 8 MB (total). L2 cache: 16 MB. Built on 32 nm process technology. Socket: G34. Thermal design power (TDP): 85 Watt. Memory support: DDR3. Passmark benchmark score: 5,613 points. Launch price was $800.

Ryzen 3 3300U

The Ryzen 3 3300U is manufactured by AMD. It was released in 6 January 2019 (6 years ago). It is based on the Picasso (2019−2022) architecture. It features 4 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 3.5 GHz. L3 cache: 4 MB (total). L2 cache: 512K (per core). Built on 12 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 5,686 points. Launch price was $149.

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Processing Power

The Opteron 6366 HE packs 16 cores / 16 threads, while the Ryzen 3 3300U offers 4 cores / 4 threads — the Opteron 6366 HE has 12 more cores. Boost clocks reach 3.1 GHz on the Opteron 6366 HE versus 3.5 GHz on the Ryzen 3 3300U — a 12.1% clock advantage for the Ryzen 3 3300U (base: 1.8 GHz vs 2.1 GHz). The Opteron 6366 HE uses the Abu Dhabi (2012) architecture (32 nm), while the Ryzen 3 3300U uses Picasso (2019−2022) (12 nm). In PassMark, the Opteron 6366 HE scores 5,613 against the Ryzen 3 3300U's 5,686 — a 1.3% lead for the Ryzen 3 3300U. L3 cache: 8 MB (total) on the Opteron 6366 HE vs 4 MB (total) on the Ryzen 3 3300U.

Feature	Opteron 6366 HE	Ryzen 3 3300U
Cores / Threads	16 / 16+300%	4 / 4
Boost Clock	3.1 GHz	3.5 GHz+13%
Base Clock	1.8 GHz	2.1 GHz+17%
L3 Cache	8 MB (total)+100%	4 MB (total)
L2 Cache	16 MB	512K (per core)+3100%
Process	32 nm	12 nm-63%
Architecture	Abu Dhabi (2012)	Picasso (2019−2022)
PassMark	5,613	5,686+1%

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Memory & Platform

The Opteron 6366 HE uses the G34 socket (PCIe 2.0), while the Ryzen 3 3300U uses FP5 (PCIe 3.0) — making them incompatible on the same motherboard.