
Xeon E5620

Athlon X4 950
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 E5620 is positioned at rank 649 and the Athlon X4 950 is on rank 344, so the Athlon X4 950 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5620
Performance Per Dollar Athlon X4 950
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5620 | Athlon X4 950 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | ✨ Modern (Bristol Ridge (2016−2019) / 28 nm) |
💎 Value Proposition
| Insight | Xeon E5620 | Athlon X4 950 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
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 E5620 and Athlon X4 950

Xeon E5620
The Xeon E5620 is manufactured by Intel. It was released in 16 March 2010 (15 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 8 threads. Base frequency is 2.4 GHz, with boost up to 2.66 GHz. L3 cache: 12 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: 3,621 points. Launch price was $35.

Athlon X4 950
The Athlon X4 950 is manufactured by AMD. It was released in 27 July 2017 (8 years ago). It is based on the Bristol Ridge (2016−2019) architecture. It features 4 cores and 4 threads. Base frequency is 3.5 GHz, with boost up to 3.8 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 28 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 3,576 points. Launch price was $60.
Processing Power
The Xeon E5620 packs 4 cores / 8 threads, matching the Athlon X4 950's 4 cores. Boost clocks reach 2.66 GHz on the Xeon E5620 versus 3.8 GHz on the Athlon X4 950 — a 35.3% clock advantage for the Athlon X4 950 (base: 2.4 GHz vs 3.5 GHz). The Xeon E5620 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Athlon X4 950 uses Bristol Ridge (2016−2019) (28 nm). In PassMark, the Xeon E5620 scores 3,621 against the Athlon X4 950's 3,576 — a 1.3% lead for the Xeon E5620. L3 cache: 12 MB (total) on the Xeon E5620 vs 0 kB on the Athlon X4 950.
| Feature | Xeon E5620 | Athlon X4 950 |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 4 |
| Boost Clock | 2.66 GHz | 3.8 GHz+43% |
| Base Clock | 2.4 GHz | 3.5 GHz+46% |
| L3 Cache | 12 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 512 kB (per core)+100% |
| Process | 32 nm | 28 nm-13% |
| Architecture | Westmere-EP (2010−2011) | Bristol Ridge (2016−2019) |
| PassMark | 3,621+1% | 3,576 |
| Geekbench 6 Single | — | 656 |
| Geekbench 6 Multi | — | 1,637 |
Memory & Platform
The Xeon E5620 uses the LGA1366 socket (PCIe 2.0), while the Athlon X4 950 uses AM4 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5620 | Athlon X4 950 |
|---|---|---|
| Socket | LGA1366 | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | — | DDR4-2400 |
| Max RAM Capacity | — | 64 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 8 |
Advanced Features
Virtualization: not specified (Xeon E5620) / AMD-V (Athlon X4 950).
| Feature | Xeon E5620 | Athlon X4 950 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.

















