Xeon E5-2643 vs Opteron 6272
Xeon E5-2643
Opteron 6272
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 E5-2643 is positioned at rank 1009 and the Opteron 6272 is on rank 65, so the Opteron 6272 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5-2643
Performance Per Dollar Opteron 6272
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5-2643 | Opteron 6272 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm) | 🛑 Legacy (Interlagos (2011−2012) / 32 nm) |
💎 Value Proposition
| Insight | Xeon E5-2643 | Opteron 6272 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+0%) |
| 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 Xeon E5-2643 and Opteron 6272
Xeon E5-2643
The Xeon E5-2643 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 4 cores and 8 threads. Base frequency is 3.3 GHz, with boost up to 3.5 GHz. L3 cache: 10240 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 5,228 points. Launch price was $218.
Opteron 6272
The Opteron 6272 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 2.1 GHz, with boost up to 3 GHz. L3 cache: 8 MB (total). L2 cache: 8.00391 MB (per core). Built on 32 nm process technology. Socket: G34. Thermal design power (TDP): 115 Watt. Memory support: DDR3. Passmark benchmark score: 5,240 points. Launch price was $325.
Processing Power
The Xeon E5-2643 packs 4 cores / 8 threads, while the Opteron 6272 offers 16 cores / 16 threads — the Opteron 6272 has 12 more cores. Boost clocks reach 3.5 GHz on the Xeon E5-2643 versus 3 GHz on the Opteron 6272 — a 15.4% clock advantage for the Xeon E5-2643 (base: 3.3 GHz vs 2.1 GHz). The Xeon E5-2643 uses the Sandy Bridge-EP (2012) architecture (32 nm), while the Opteron 6272 uses Interlagos (2011−2012) (32 nm). In PassMark, the Xeon E5-2643 scores 5,228 against the Opteron 6272's 5,240 — a 0.2% lead for the Opteron 6272. L3 cache: 10240 kB (total) on the Xeon E5-2643 vs 8 MB (total) on the Opteron 6272.
| Feature | Xeon E5-2643 | Opteron 6272 |
|---|---|---|
| Cores / Threads | 4 / 8 | 16 / 16+300% |
| Boost Clock | 3.5 GHz+17% | 3 GHz |
| Base Clock | 3.3 GHz+57% | 2.1 GHz |
| L3 Cache | 10240 kB (total)+25% | 8 MB (total) |
| L2 Cache | 256 kB (per core) | 8.00391 MB (per core)+3102% |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge-EP (2012) | Interlagos (2011−2012) |
| PassMark | 5,228 | 5,240 |
Memory & Platform
The Xeon E5-2643 uses the LGA2011 socket (PCIe 5.0), while the Opteron 6272 uses G34 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5-2643 | Opteron 6272 |
|---|---|---|
| Socket | LGA2011 | G34 |
| PCIe Generation | PCIe 5.0+150% | PCIe 2.0 |
Value Analysis
The Xeon E5-2643 launched at $1552 MSRP, while the Opteron 6272 debuted at $523. At current prices ($50 vs $50), the Opteron 6272 is $0 cheaper. In terms of value (PassMark points per dollar), the Xeon E5-2643 delivers 104.6 pts/$ vs 104.8 pts/$ for the Opteron 6272 — making the Opteron 6272 the 0.2% better value option.
| Feature | Xeon E5-2643 | Opteron 6272 |
|---|---|---|
| MSRP | $1552 | $523-66% |
| Avg Price (30d) | $50 | $50 |
| Performance per Dollar | 104.6 | 104.8 |
| Release Date | 2012 | 2011 |
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