
Xeon E5520

Atom x7211E
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 E5520 is positioned at rank 788 and the Atom x7211E is on rank 240, so the Atom x7211E offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5520
Performance Per Dollar Atom x7211E
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5520 | Atom x7211E |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Gainestown (2009−2010) / 45 nm) | ✨ Modern (Gracemont (2023) / 10 nm) |
💎 Value Proposition
| Insight | Xeon E5520 | Atom x7211E |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| 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 E5520 and Atom x7211E

Xeon E5520
The Xeon E5520 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Gainestown (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.26 GHz, with boost up to 2.53 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 2,541 points. Launch price was $19.

Atom x7211E
The Atom x7211E is manufactured by Intel. It was released in 3 January 2023 (2 years ago). It is based on the Gracemont (2023) architecture. It features 2 cores and 2 threads. Base frequency is 1 GHz, with boost up to 3.2 GHz. L3 cache: 6 MB (total). L2 cache: 2 MB (total). Built on 10 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 6 Watt. Memory support: DDR4, DDR5 4800 MHz Single-channel. Passmark benchmark score: 2,553 points. Launch price was $69.
Processing Power
The Xeon E5520 packs 4 cores / 8 threads, while the Atom x7211E offers 2 cores / 2 threads — the Xeon E5520 has 2 more cores. Boost clocks reach 2.53 GHz on the Xeon E5520 versus 3.2 GHz on the Atom x7211E — a 23.4% clock advantage for the Atom x7211E (base: 2.26 GHz vs 1 GHz). The Xeon E5520 uses the Gainestown (2009−2010) architecture (45 nm), while the Atom x7211E uses Gracemont (2023) (10 nm). In PassMark, the Xeon E5520 scores 2,541 against the Atom x7211E's 2,553 — a 0.5% lead for the Atom x7211E. L3 cache: 8 MB (total) on the Xeon E5520 vs 6 MB (total) on the Atom x7211E.
| Feature | Xeon E5520 | Atom x7211E |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 2 |
| Boost Clock | 2.53 GHz | 3.2 GHz+26% |
| Base Clock | 2.26 GHz+126% | 1 GHz |
| L3 Cache | 8 MB (total)+33% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 2 MB (total)+700% |
| Process | 45 nm | 10 nm-78% |
| Architecture | Gainestown (2009−2010) | Gracemont (2023) |
| PassMark | 2,541 | 2,553 |
Memory & Platform
The Xeon E5520 uses the LGA1366 socket (PCIe 2.0), while the Atom x7211E uses FCBGA1744 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5520 | Atom x7211E |
|---|---|---|
| Socket | LGA1366 | FCBGA1744 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | — | DDR5-4800 |
| Max RAM Capacity | — | 16 GB |
| RAM Channels | — | 1 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 9 |
Advanced Features
The Atom x7211E includes integrated graphics (Intel UHD Graphics (16EU)), while the Xeon E5520 requires a dedicated GPU.
| Feature | Xeon E5520 | Atom x7211E |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel UHD Graphics (16EU) |
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