Opteron 3280 vs Pentium Gold G6405

Opteron 3280 vs Pentium Gold G6405 Performance Spectrum

Opteron 3280

8 / 8

3,783

0.0%

Ryzen Threadripper 3990X

Pentium Gold G6405

2 / 4

3,817

+0.9%

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.

Opteron 3280 vs Pentium Gold G6405 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 3280 vs Pentium Gold G6405: Pros, Cons & Final Verdict

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

Opteron 3280

2012

Why buy it

✅Better for gaming: +9.0% 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

❌Lower PassMark (3,783 vs 3,817).
❌333.3% higher power demand at 65W vs 15W.

Pentium Gold G6405

2021

Why buy it

✅+0.9% higher PassMark.
✅Draws 15W instead of 65W, a 50W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Opteron 3280 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Less compelling for workstation-style loads than Opteron 3280, which brings 8 cores / 8 threads.

Quick Answers

So, is Pentium Gold G6405 better than Opteron 3280?

Not really, because they are built for different jobs. Opteron 3280 makes more sense for workstation-style multi-core throughput, while Pentium Gold G6405 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, Pentium Gold G6405 is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 4 threads.

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

Pentium Gold G6405 still makes the most sense overall. Pentium Gold G6405 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.9% better PassMark.

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

Pentium Gold G6405 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2012) and more multi-core headroom with 2 cores / 4 threads instead of 8/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Opteron 3280 vs Pentium Gold G6405 Technical Specifications

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

Opteron 3280

The Opteron 3280 is manufactured by AMD. It was released in 20 March 2012 (13 years ago). It is based on the Zurich (2012) architecture. It features 8 cores and 8 threads. Base frequency is 2.5 GHz, with boost up to 3.5 GHz. L3 cache: 8 MB (total). L2 cache: 8 MB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 3,783 points. Launch price was $229.

Pentium Gold G6405

The Pentium Gold G6405 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 2 cores and 4 threads. Base frequency is 4.1 GHz, with boost up to 4.1 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2666. Passmark benchmark score: 3,817 points. Launch price was $64.

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Processing Power

The Opteron 3280 packs 8 cores / 8 threads, while the Pentium Gold G6405 offers 2 cores / 4 threads — the Opteron 3280 has 6 more cores. Boost clocks reach 3.5 GHz on the Opteron 3280 versus 4.1 GHz on the Pentium Gold G6405 — a 15.8% clock advantage for the Pentium Gold G6405 (base: 2.5 GHz vs 4.1 GHz). The Opteron 3280 uses the Zurich (2012) architecture (32 nm), while the Pentium Gold G6405 uses Comet Lake-R (2021) (14 nm). In PassMark, the Opteron 3280 scores 3,783 against the Pentium Gold G6405's 3,817 — a 0.9% lead for the Pentium Gold G6405. L3 cache: 8 MB (total) on the Opteron 3280 vs 4 MB (total) on the Pentium Gold G6405.

Feature	Opteron 3280	Pentium Gold G6405
Cores / Threads	8 / 8+300%	2 / 4
Boost Clock	3.5 GHz	4.1 GHz+17%
Base Clock	2.5 GHz	4.1 GHz+64%
L3 Cache	8 MB (total)+100%	4 MB (total)
L2 Cache	8 MB+3100%	256 kB (per core)
Process	32 nm	14 nm-56%
Architecture	Zurich (2012)	Comet Lake-R (2021)
PassMark	3,783	3,817

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Memory & Platform

The Opteron 3280 uses the AM3+ socket (PCIe 2.0), while the Pentium Gold G6405 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.