Opteron 6276 vs Core i5-6600K
Opteron 6276
Core i5-6600K
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 6276 is positioned at rank 53 and the Core i5-6600K is on rank 662, so the Opteron 6276 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Opteron 6276
Performance Per Dollar Core i5-6600K
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Opteron 6276 | Core i5-6600K |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($397) | ✅ More affordable ($105) |
| Longevity | 🛑 Legacy (Interlagos (2011−2012) / 32 nm) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Opteron 6276 | Core i5-6600K |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+275%) |
| Upfront Cost | ⚠️ Higher cost ($397) | ✅ More affordable ($105) |
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 6276 and Core i5-6600K
Opteron 6276
The Opteron 6276 is manufactured by AMD. It was released in 14 November 2011 (14 years ago). It is based on the Interlagos (2011−2012) architecture. It features 16 cores and 16 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 2 MB (per module). Built on 32 nm process technology. Socket: G34. Thermal design power (TDP): 115 Watt. Memory support: DDR3. Passmark benchmark score: 6,348 points. Launch price was $119.
Core i5-6600K
The Core i5-6600K is manufactured by Intel. It was released in 5 August 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 91 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 6,301 points. Launch price was $242.
Processing Power
The Opteron 6276 packs 16 cores / 16 threads, while the Core i5-6600K offers 4 cores / 4 threads — the Opteron 6276 has 12 more cores. Boost clocks reach 3.2 GHz on the Opteron 6276 versus 3.9 GHz on the Core i5-6600K — a 19.7% clock advantage for the Core i5-6600K (base: 2.3 GHz vs 3.5 GHz). The Opteron 6276 uses the Interlagos (2011−2012) architecture (32 nm), while the Core i5-6600K uses Skylake (2015−2016) (14 nm). In PassMark, the Opteron 6276 scores 6,348 against the Core i5-6600K's 6,301 — a 0.7% lead for the Opteron 6276. L3 cache: 8 MB (total) on the Opteron 6276 vs 6 MB (total) on the Core i5-6600K.
| Feature | Opteron 6276 | Core i5-6600K |
|---|---|---|
| Cores / Threads | 16 / 16+300% | 4 / 4 |
| Boost Clock | 3.2 GHz | 3.9 GHz+22% |
| Base Clock | 2.3 GHz | 3.5 GHz+52% |
| L3 Cache | 8 MB (total)+33% | 6 MB (total) |
| L2 Cache | 2 MB (per module)+700% | 256 kB (per core) |
| Process | 32 nm | 14 nm-56% |
| Architecture | Interlagos (2011−2012) | Skylake (2015−2016) |
| PassMark | 6,348 | 6,301 |
Memory & Platform
The Opteron 6276 uses the G34 socket (PCIe 2.0), while the Core i5-6600K uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Opteron 6276 | Core i5-6600K |
|---|---|---|
| Socket | G34 | LGA1151 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
Value Analysis
The Opteron 6276 launched at $788 MSRP, while the Core i5-6600K debuted at $242. At current prices ($397 vs $105), the Core i5-6600K is $292 cheaper. In terms of value (PassMark points per dollar), the Opteron 6276 delivers 16.0 pts/$ vs 60.0 pts/$ for the Core i5-6600K — making the Core i5-6600K the 115.8% better value option.
| Feature | Opteron 6276 | Core i5-6600K |
|---|---|---|
| MSRP | $788 | $242-69% |
| Avg Price (30d) | $397 | $105-74% |
| Performance per Dollar | 16.0 | 60.0+275% |
| Release Date | 2011 | 2015 |
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