Xeon E5603 vs Opteron 3320 EE
Xeon E5603
Opteron 3320 EE
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 E5603 is positioned at rank 863 and the Opteron 3320 EE is on rank 282, so the Opteron 3320 EE offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5603
Performance Per Dollar Opteron 3320 EE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5603 | Opteron 3320 EE |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($188) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | 🛑 Legacy (Delhi (2012−2013) / 32 nm) |
💎 Value Proposition
| Insight | Xeon E5603 | Opteron 3320 EE |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($188) | ✅ More affordable ($0) |
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 E5603 and Opteron 3320 EE
Xeon E5603
The Xeon E5603 is manufactured by Intel. It was released in 14 February 2011 (14 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 1,935 points. Launch price was $286.
Opteron 3320 EE
The Opteron 3320 EE is manufactured by AMD. It was released in 2015-01-01. It is based on the Delhi (2012−2013) architecture. It features 4 cores and 4 threads. Base frequency is 1.9 GHz, with boost up to 2.5 GHz. L3 cache: 8192 kB (total). L2 cache: 4096 kB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 25 Watt. Memory support: DDR3. Passmark benchmark score: 1,918 points. Launch price was $800.
Processing Power
Both the Xeon E5603 and Opteron 3320 EE share an identical 4-core/4-thread configuration. Boost clocks reach 1.6 GHz on the Xeon E5603 versus 2.5 GHz on the Opteron 3320 EE — a 43.9% clock advantage for the Opteron 3320 EE (base: 1.6 GHz vs 1.9 GHz). The Xeon E5603 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Opteron 3320 EE uses Delhi (2012−2013) (32 nm). In PassMark, the Xeon E5603 scores 1,935 against the Opteron 3320 EE's 1,918 — a 0.9% lead for the Xeon E5603. L3 cache: 4 MB (total) on the Xeon E5603 vs 8192 kB (total) on the Opteron 3320 EE.
| Feature | Xeon E5603 | Opteron 3320 EE |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 4 |
| Boost Clock | 1.6 GHz | 2.5 GHz+56% |
| Base Clock | 1.6 GHz | 1.9 GHz+19% |
| L3 Cache | 4 MB (total) | 8192 kB (total)+100% |
| L2 Cache | 256 kB (per core) | 4096 kB+1500% |
| Process | 32 nm | 32 nm |
| Architecture | Westmere-EP (2010−2011) | Delhi (2012−2013) |
| PassMark | 1,935 | 1,918 |
Memory & Platform
The Xeon E5603 uses the LGA1366 socket (PCIe 2.0), while the Opteron 3320 EE uses AM3+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5603 | Opteron 3320 EE |
|---|---|---|
| Socket | LGA1366 | AM3+ |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1066 | — |
| Max RAM Capacity | 288 GB | — |
| RAM Channels | 3 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 32 | — |
Advanced Features
Virtualization: VT-x, VT-d (Xeon E5603) / not specified (Opteron 3320 EE). Primary use case: Xeon E5603 targets Server.
| Feature | Xeon E5603 | Opteron 3320 EE |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Server | — |
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