Opteron 140 vs Xeon 2.66
Opteron 140
Xeon 2.66
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 140 is positioned at rank 849 and the Xeon 2.66 is on rank 1028, so the Opteron 140 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Opteron 140
Performance Per Dollar Xeon 2.66
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Opteron 140 | Xeon 2.66 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (SledgeHammer (2003−2005) / 130 nm) | 🛑 Legacy (Prestonia (2002) / 130 nm) |
💎 Value Proposition
| Insight | Opteron 140 | Xeon 2.66 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
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 140 and Xeon 2.66
Opteron 140
The Opteron 140 is manufactured by AMD. It was released in Setembro 2003 (22 years ago). It is based on the SledgeHammer (2003−2005) architecture. It features 1 cores and 1 threads. Max frequency: 1.4 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 940. Thermal design power (TDP): 85 Watt. Passmark benchmark score: 428 points. Launch price was $596.
Xeon 2.66
The Xeon 2.66 is manufactured by Intel. It was released in 2015-01-01. It is based on the Prestonia (2002) architecture. It features 1 cores and 1 threads. Max frequency: 2.66 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA604. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 445 points. Launch price was $800.
Processing Power
Both the Opteron 140 and Xeon 2.66 share an identical 1-core/1-thread configuration. Boost clocks reach 1.4 GHz on the Opteron 140 versus 2.66 GHz on the Xeon 2.66 — a 62.1% clock advantage for the Xeon 2.66. The Opteron 140 uses the SledgeHammer (2003−2005) architecture (130 nm), while the Xeon 2.66 uses Prestonia (2002) (130 nm). In PassMark, the Opteron 140 scores 428 against the Xeon 2.66's 445 — a 3.9% lead for the Xeon 2.66. Both processors carry 0 kB of L3 cache.
| Feature | Opteron 140 | Xeon 2.66 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.4 GHz | 2.66 GHz+90% |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 1 MB+100% | 512 kB |
| Process | 130 nm | 130 nm |
| Architecture | SledgeHammer (2003−2005) | Prestonia (2002) |
| PassMark | 428 | 445+4% |
Memory & Platform
The Opteron 140 uses the 940 socket (PCIe 2.0), while the Xeon 2.66 uses PGA604 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Opteron 140 | Xeon 2.66 |
|---|---|---|
| Socket | 940 | PGA604 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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