Xeon 2.66 vs Ryzen 7 3700X
Xeon 2.66
Ryzen 7 3700X
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. The Xeon 2.66 is positioned at rank #1028 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon 2.66
Performance Per Dollar Ryzen 7 3700X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon 2.66 | Ryzen 7 3700X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($10) | ⚠️ Higher cost ($140) |
| Longevity | 🛑 Legacy (Prestonia (2002) / 130 nm) | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Xeon 2.66 | Ryzen 7 3700X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+260%) |
| Upfront Cost | ✅ More affordable ($10) | ⚠️ Higher cost ($140) |
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 2.66 and Ryzen 7 3700X
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.
Ryzen 7 3700X
The Ryzen 7 3700X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 22,430 points. Launch price was $329.
Processing Power
The Xeon 2.66 packs 1 cores / 1 threads, while the Ryzen 7 3700X offers 8 cores / 16 threads — the Ryzen 7 3700X has 7 more cores. Boost clocks reach 2.66 GHz on the Xeon 2.66 versus 4.4 GHz on the Ryzen 7 3700X — a 49.3% clock advantage for the Ryzen 7 3700X. The Xeon 2.66 uses the Prestonia (2002) architecture (130 nm), while the Ryzen 7 3700X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Xeon 2.66 scores 445 against the Ryzen 7 3700X's 22,430 — a 192.2% lead for the Ryzen 7 3700X. L3 cache: 0 kB on the Xeon 2.66 vs 32 MB on the Ryzen 7 3700X.
| Feature | Xeon 2.66 | Ryzen 7 3700X |
|---|---|---|
| Cores / Threads | 1 / 1 | 8 / 16+700% |
| Boost Clock | 2.66 GHz | 4.4 GHz+65% |
| Base Clock | — | 3.6 GHz |
| L3 Cache | 0 kB | 32 MB |
| L2 Cache | 512 kB | 512K (per core) |
| Process | 130 nm | 7 nm, 12 nm-95% |
| Architecture | Prestonia (2002) | Matisse (Zen 2) (2019−2020) |
| PassMark | 445 | 22,430+4940% |
Memory & Platform
The Xeon 2.66 uses the PGA604 socket (PCIe 2.0), while the Ryzen 7 3700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Xeon 2.66 | Ryzen 7 3700X |
|---|---|---|
| Socket | PGA604 | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | — | DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 24 |
Value Analysis
The Xeon 2.66 launched at $337 MSRP, while the Ryzen 7 3700X debuted at $329. At current prices ($10 vs $140), the Xeon 2.66 is $130 cheaper. In terms of value (PassMark points per dollar), the Xeon 2.66 delivers 44.5 pts/$ vs 160.2 pts/$ for the Ryzen 7 3700X — making the Ryzen 7 3700X the 113% better value option.
| Feature | Xeon 2.66 | Ryzen 7 3700X |
|---|---|---|
| MSRP | $337 | $329-2% |
| Avg Price (30d) | $10-93% | $140 |
| Performance per Dollar | 44.5 | 160.2+260% |
| Release Date | 2002 | 2019 |
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