Athlon PRO 300U vs Opteron 3365

Athlon PRO 300U vs Opteron 3365 Performance Spectrum

Athlon PRO 300U

2 / 4

4,080

0.0%

Ryzen Threadripper 3990X

Opteron 3365

8 / 8

4,125

+1.1%

Ryzen Threadripper 3990X

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.

Athlon PRO 300U vs Opteron 3365 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.

Athlon PRO 300U vs Opteron 3365: Pros, Cons & Final Verdict

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

Athlon PRO 300U

2019

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅100+% more PCIe lanes (8 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with AMD Radeon Vega 3, while Opteron 3365 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Opteron 3365 across 50 shared CPU benchmark tests.
❌Lower PassMark (4,080 vs 4,125).
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Less compelling for workstation-style loads than Opteron 3365, which brings 8 cores / 8 threads.

Opteron 3365

2013

Why buy it

✅Better for gaming: +10.5% 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: 8 cores / 8 threads.

Trade-offs

❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Athlon PRO 300U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Opteron 3365 better than Athlon PRO 300U?

Not really, because they are built for different jobs. Opteron 3365 makes more sense for workstation-style multi-core throughput, while Athlon PRO 300U is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Opteron 3365 is the better pick. According to our tests, it delivers 10.5% 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, Opteron 3365 is the stronger fit. You are getting 1.1% better PassMark, backed by 8 cores and 8 threads. It also has the larger cache pool with 100% larger total L3 cache (8 MB vs 4 MB).

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

Opteron 3365 still makes the most sense overall. Opteron 3365 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 10.5% average FPS lead across 50 shared CPU game tests in our data.

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

Athlon PRO 300U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2013). That makes it the safer long-term bet.

Athlon PRO 300U vs Opteron 3365 Technical Specifications

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

Athlon PRO 300U

The Athlon PRO 300U is manufactured by AMD. It was released in 2009-01-01. It is based on the Raven Ridge 2 (2019) architecture. It features 2 cores and 4 threads. Base frequency is 2.4 GHz, with boost up to 3.3 GHz. L3 cache: 4 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 4,080 points. Launch price was $149.

Opteron 3365

The Opteron 3365 is manufactured by AMD. It was released in 2015-01-01. It is based on the Delhi (2012−2013) architecture. It features 8 cores and 8 threads. Base frequency is 2.3 GHz, with boost up to 3.3 GHz. L3 cache: 8 MB (total). L2 cache: 4 MB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 4,125 points. Launch price was $800.

⚡

Processing Power

The Athlon PRO 300U packs 2 cores / 4 threads, while the Opteron 3365 offers 8 cores / 8 threads — the Opteron 3365 has 6 more cores. Boost clocks reach 3.3 GHz on the Athlon PRO 300U versus 3.3 GHz on the Opteron 3365 — identical boost frequencies (base: 2.4 GHz vs 2.3 GHz). The Athlon PRO 300U uses the Raven Ridge 2 (2019) architecture (14 nm), while the Opteron 3365 uses Delhi (2012−2013) (32 nm). In PassMark, the Athlon PRO 300U scores 4,080 against the Opteron 3365's 4,125 — a 1.1% lead for the Opteron 3365. L3 cache: 4 MB (total) on the Athlon PRO 300U vs 8 MB (total) on the Opteron 3365.

Feature	Athlon PRO 300U	Opteron 3365
Cores / Threads	2 / 4	8 / 8+300%
Boost Clock	3.3 GHz	3.3 GHz
Base Clock	2.4 GHz+4%	2.3 GHz
L3 Cache	4 MB (total)	8 MB (total)+100%
L2 Cache	512K (per core)+12700%	4 MB
Process	14 nm-56%	32 nm
Architecture	Raven Ridge 2 (2019)	Delhi (2012−2013)
PassMark	4,080	4,125+1%

🧠

Memory & Platform

The Athlon PRO 300U uses the FP5 socket (PCIe 3.0), while the Opteron 3365 uses AM3+ (PCIe 3.0) — making them incompatible on the same motherboard.