CPU
GPU
Xeon E5620
Core i7-6650U
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 Core i7-6650U is on rank 436, so the Core i7-6650U 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 Core i7-6650U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5620 | Core i7-6650U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E5620 | Core i7-6650U |
|---|---|---|
| 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 E5620 and Core i7-6650U
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.
Core i7-6650U
The Core i7-6650U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 3.4 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 3,557 points. Launch price was $415.
Processing Power
The Xeon E5620 packs 4 cores / 8 threads, while the Core i7-6650U offers 2 cores / 4 threads — the Xeon E5620 has 2 more cores. Boost clocks reach 2.66 GHz on the Xeon E5620 versus 3.4 GHz on the Core i7-6650U — a 24.4% clock advantage for the Core i7-6650U (base: 2.4 GHz vs 2.2 GHz). The Xeon E5620 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Core i7-6650U uses Skylake (2015−2016) (14 nm). In PassMark, the Xeon E5620 scores 3,621 against the Core i7-6650U's 3,557 — a 1.8% lead for the Xeon E5620. L3 cache: 12 MB (total) on the Xeon E5620 vs 4 MB on the Core i7-6650U.
| Feature | Xeon E5620 | Core i7-6650U |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 4 |
| Boost Clock | 2.66 GHz | 3.4 GHz+28% |
| Base Clock | 2.4 GHz+9% | 2.2 GHz |
| L3 Cache | 12 MB (total)+200% | 4 MB |
| L2 Cache | 256 kB (per core) | 512 kB+100% |
| Process | 32 nm | 14 nm-56% |
| Architecture | Westmere-EP (2010−2011) | Skylake (2015−2016) |
| PassMark | 3,621+2% | 3,557 |
Memory & Platform
The Xeon E5620 uses the LGA1366 socket (PCIe 2.0), while the Core i7-6650U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5620 | Core i7-6650U |
|---|---|---|
| Socket | LGA1366 | BGA1356 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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