CPU
GPU
Xeon E3-1275L v3
Opteron 6276
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 E3-1275L v3 is positioned at rank 650 and the Opteron 6276 is on rank 53, 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 Xeon E3-1275L v3
Performance Per Dollar Opteron 6276
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E3-1275L v3 | Opteron 6276 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($29) | ⚠️ Higher cost ($397) |
| Longevity | 🛑 Legacy (Legacy / 22 nm) | 🛑 Legacy (Interlagos (2011−2012) / 32 nm) |
💎 Value Proposition
| Insight | Xeon E3-1275L v3 | Opteron 6276 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+1264%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($29) | ⚠️ Higher cost ($397) |
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 E3-1275L v3 and Opteron 6276
Xeon E3-1275L v3
The Xeon E3-1275L v3 is manufactured by Intel. It was released in 2015-01-01. It features 4 cores and 8 threads. Base frequency is 2.7 GHz, with boost up to 3.9 GHz. L3 cache: 8 MB Intel® Smart Cache. Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 45 Watt. Memory support: DDR3-1333, DDR3-1600. Passmark benchmark score: 6,327 points. Launch price was $800.
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.
Processing Power
The Xeon E3-1275L v3 packs 4 cores / 8 threads, while the Opteron 6276 offers 16 cores / 16 threads — the Opteron 6276 has 12 more cores. Boost clocks reach 3.9 GHz on the Xeon E3-1275L v3 versus 3.2 GHz on the Opteron 6276 — a 19.7% clock advantage for the Xeon E3-1275L v3 (base: 2.7 GHz vs 2.3 GHz). The Opteron 6276 is built on the Interlagos (2011−2012) architecture. In PassMark, the Xeon E3-1275L v3 scores 6,327 against the Opteron 6276's 6,348 — a 0.3% lead for the Opteron 6276. L3 cache: 8 MB Intel® Smart Cache on the Xeon E3-1275L v3 vs 8 MB (total) on the Opteron 6276.
| Feature | Xeon E3-1275L v3 | Opteron 6276 |
|---|---|---|
| Cores / Threads | 4 / 8 | 16 / 16+300% |
| Boost Clock | 3.9 GHz+22% | 3.2 GHz |
| Base Clock | 2.7 GHz+17% | 2.3 GHz |
| L3 Cache | 8 MB Intel® Smart Cache | 8 MB (total) |
| L2 Cache | — | 2 MB (per module) |
| Process | 22 nm-31% | 32 nm |
| Architecture | — | Interlagos (2011−2012) |
| PassMark | 6,327 | 6,348 |
| Geekbench 6 Single | 900 | — |
| Geekbench 6 Multi | 3,000 | — |
Memory & Platform
The Xeon E3-1275L v3 uses the LGA1150 socket (PCIe 3.0), while the Opteron 6276 uses G34 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E3-1275L v3 | Opteron 6276 |
|---|---|---|
| Socket | LGA1150 | G34 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR3-1600 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x, VT-d (Xeon E3-1275L v3) / not specified (Opteron 6276). The Xeon E3-1275L v3 includes integrated graphics (Intel HD Graphics P4600), while the Opteron 6276 requires a dedicated GPU. Primary use case: Xeon E3-1275L v3 targets Low Power Server. Direct competitor: Xeon E3-1275L v3 rivals Xeon E3-1270 v3.
| Feature | Xeon E3-1275L v3 | Opteron 6276 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel HD Graphics P4600 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Low Power Server | — |
Value Analysis
The Xeon E3-1275L v3 launched at $350 MSRP, while the Opteron 6276 debuted at $788. At current prices ($29 vs $397), the Xeon E3-1275L v3 is $368 cheaper. In terms of value (PassMark points per dollar), the Xeon E3-1275L v3 delivers 218.2 pts/$ vs 16.0 pts/$ for the Opteron 6276 — making the Xeon E3-1275L v3 the 172.7% better value option.
| Feature | Xeon E3-1275L v3 | Opteron 6276 |
|---|---|---|
| MSRP | $350-56% | $788 |
| Avg Price (30d) | $29-93% | $397 |
| Performance per Dollar | 218.2+1264% | 16.0 |
| Release Date | 2014 | 2011 |
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