
Opteron 6366 HE

Atom C3808
Performance Spectrum - CPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Opteron 6366 HE is positioned at rank 62 and the Atom C3808 is on rank 737, so the Opteron 6366 HE offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Opteron 6366 HE
Performance Per Dollar Atom C3808
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Opteron 6366 HE | Atom C3808 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Abu Dhabi (2012) / 32 nm) | ✨ Modern (Goldmont (2016−2017) / 14 nm) |
💎 Value Proposition
| Insight | Opteron 6366 HE | Atom C3808 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Opteron 6366 HE and Atom C3808

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.

Atom C3808
The Atom C3808 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 12 cores and 12 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 12 MB. L2 cache: 12 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 25 Watt. Memory support: DDR4: 2133. Passmark benchmark score: 5,671 points. Launch price was $369.
Processing Power
The Opteron 6366 HE packs 16 cores / 16 threads, while the Atom C3808 offers 12 cores / 12 threads — the Opteron 6366 HE has 4 more cores. Boost clocks reach 3.1 GHz on the Opteron 6366 HE versus 2 GHz on the Atom C3808 — a 43.1% clock advantage for the Opteron 6366 HE (base: 1.8 GHz vs 2 GHz). The Opteron 6366 HE uses the Abu Dhabi (2012) architecture (32 nm), while the Atom C3808 uses Goldmont (2016−2017) (14 nm). In PassMark, the Opteron 6366 HE scores 5,613 against the Atom C3808's 5,671 — a 1% lead for the Atom C3808. L3 cache: 8 MB (total) on the Opteron 6366 HE vs 12 MB on the Atom C3808.
| Feature | Opteron 6366 HE | Atom C3808 |
|---|---|---|
| Cores / Threads | 16 / 16+33% | 12 / 12 |
| Boost Clock | 3.1 GHz+55% | 2 GHz |
| Base Clock | 1.8 GHz | 2 GHz+11% |
| L3 Cache | 8 MB (total) | 12 MB+50% |
| L2 Cache | 16 MB+33% | 12 MB |
| Process | 32 nm | 14 nm-56% |
| Architecture | Abu Dhabi (2012) | Goldmont (2016−2017) |
| PassMark | 5,613 | 5,671+1% |
Memory & Platform
The Opteron 6366 HE uses the G34 socket (PCIe 2.0), while the Atom C3808 uses FCBGA1310 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Opteron 6366 HE | Atom C3808 |
|---|---|---|
| Socket | G34 | FCBGA1310 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | — | DDR4-2133 |
| Max RAM Capacity | — | 256 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 12 |
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