Opteron 6366 HE vs Xeon E3-1220 v6

Opteron 6366 HE vs Xeon E3-1220 v6 Performance Spectrum

Opteron 6366 HE

16 / 16

5,613

+0.4%

Ryzen Embedded R1305G

Ryzen Threadripper PRO 3975WX

Ryzen Threadripper PRO 7965WX

Xeon E3-1220 v6

4 / 4

5,589

0.0%

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 6366 HE vs Xeon E3-1220 v6 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 Xeon E3-1220 v6: 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: +21.7% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌18.1% higher power demand at 85W vs 72W.

Xeon E3-1220 v6

2017

Why buy it

✅Draws 72W instead of 85W, a 13W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Opteron 6366 HE across 50 shared CPU benchmark tests.
❌Lower PassMark (5,589 vs 5,613).
❌Launch MSRP is still $372 MSRP, while Opteron 6366 HE mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Opteron 6366 HE better than Xeon E3-1220 v6?

Yes. Opteron 6366 HE is the better all-around CPU here. It gives you a 21.7% average FPS lead across 50 shared CPU game tests in our data and 0.4% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Opteron 6366 HE is the better pick. According to our tests, it delivers 21.7% 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 6366 HE is the stronger fit. You are getting 0.4% better PassMark, backed by 16 cores and 16 threads.

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

Opteron 6366 HE is still the faster CPU overall, but Xeon E3-1220 v6 is easier to justify if budget matters more than peak performance. Opteron 6366 HE comes in at an unclear MSRP at unclear MSRP versus $372 MSRP, and it still gives you a 21.7% average FPS lead across 50 shared CPU game tests in our data. Xeon E3-1220 v6 is also 100.0% better value on MSRP (15.0 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon E3-1220 v6 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2012). That makes it the safer long-term bet.

Opteron 6366 HE vs Xeon E3-1220 v6 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.

Xeon E3-1220 v6

The Xeon E3-1220 v6 is manufactured by Intel. It was released in 28 March 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 4 threads. Base frequency is 3 GHz, with boost up to 3.5 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 72 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 5,589 points. Launch price was $193.

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Processing Power

The Opteron 6366 HE packs 16 cores / 16 threads, while the Xeon E3-1220 v6 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 Xeon E3-1220 v6 — a 12.1% clock advantage for the Xeon E3-1220 v6 (base: 1.8 GHz vs 3 GHz). The Opteron 6366 HE uses the Abu Dhabi (2012) architecture (32 nm), while the Xeon E3-1220 v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Opteron 6366 HE scores 5,613 against the Xeon E3-1220 v6's 5,589 — a 0.4% lead for the Opteron 6366 HE. L3 cache: 8 MB (total) on the Opteron 6366 HE vs 8 MB on the Xeon E3-1220 v6.

Feature	Opteron 6366 HE	Xeon E3-1220 v6
Cores / Threads	16 / 16+300%	4 / 4
Boost Clock	3.1 GHz	3.5 GHz+13%
Base Clock	1.8 GHz	3 GHz+67%
L3 Cache	8 MB (total)	8 MB
L2 Cache	16 MB+1500%	1 MB
Process	32 nm	14 nm-56%
Architecture	Abu Dhabi (2012)	Kaby Lake (2016−2019)
PassMark	5,613	5,589

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Memory & Platform

The Opteron 6366 HE uses the G34 socket (PCIe 2.0), while the Xeon E3-1220 v6 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.