Xeon E3-1275 vs Opteron 6376
Xeon E3-1275
Opteron 6376
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 Xeon E3-1275 is positioned at rank 522 and the Opteron 6376 is on rank 63, so the Opteron 6376 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E3-1275
Performance Per Dollar Opteron 6376
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E3-1275 | Opteron 6376 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($703) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Abu Dhabi (2012) / 32 nm) |
💎 Value Proposition
| Insight | Xeon E3-1275 | Opteron 6376 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($703) |
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 Xeon E3-1275 and Opteron 6376
Xeon E3-1275
The Xeon E3-1275 is manufactured by Intel. It was released in 3 April 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 3.4 GHz, with boost up to 3.8 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 5,496 points. Launch price was $450.
Opteron 6376
The Opteron 6376 is manufactured by AMD. It was released in 5 November 2012 (13 years ago). It is based on the Abu Dhabi (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: 16 MB. Built on 32 nm process technology. Socket: G34. Thermal design power (TDP): 115 Watt. Memory support: DDR3. Passmark benchmark score: 5,572 points. Launch price was $750.
Processing Power
The Xeon E3-1275 packs 4 cores / 8 threads, while the Opteron 6376 offers 16 cores / 16 threads — the Opteron 6376 has 12 more cores. Boost clocks reach 3.8 GHz on the Xeon E3-1275 versus 3.2 GHz on the Opteron 6376 — a 17.1% clock advantage for the Xeon E3-1275 (base: 3.4 GHz vs 2.3 GHz). The Xeon E3-1275 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Opteron 6376 uses Abu Dhabi (2012) (32 nm). In PassMark, the Xeon E3-1275 scores 5,496 against the Opteron 6376's 5,572 — a 1.4% lead for the Opteron 6376. Both processors carry 8 MB (total) of L3 cache.
| Feature | Xeon E3-1275 | Opteron 6376 |
|---|---|---|
| Cores / Threads | 4 / 8 | 16 / 16+300% |
| Boost Clock | 3.8 GHz+19% | 3.2 GHz |
| Base Clock | 3.4 GHz+48% | 2.3 GHz |
| L3 Cache | 8 MB (total) | 8 MB (total) |
| L2 Cache | 256 kB (per core) | 16 MB+6300% |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Abu Dhabi (2012) |
| PassMark | 5,496 | 5,572+1% |
Memory & Platform
The Xeon E3-1275 uses the LGA1155 socket (PCIe 2.0), while the Opteron 6376 uses G34 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E3-1275 | Opteron 6376 |
|---|---|---|
| Socket | LGA1155 | G34 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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