CPU
GPU
Xeon X5660
Core i5-8365U
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 X5660 is positioned at rank 990 and the Core i5-8365U is on rank 880, so the Core i5-8365U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon X5660
Performance Per Dollar Core i5-8365U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5660 | Core i5-8365U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($10) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) |
💎 Value Proposition
| Insight | Xeon X5660 | Core i5-8365U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($10) | ✅ 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 X5660 and Core i5-8365U
Xeon X5660
The Xeon X5660 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 6 cores and 12 threads. Base frequency is 2.8 GHz, with boost up to 3.2 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 5,979 points. Launch price was $33.
Core i5-8365U
The Core i5-8365U is manufactured by Intel. It was released in 16 April 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.6 GHz, with boost up to 4.1 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 5,939 points. Launch price was $297.
Processing Power
The Xeon X5660 packs 6 cores / 12 threads, while the Core i5-8365U offers 4 cores / 8 threads — the Xeon X5660 has 2 more cores. Boost clocks reach 3.2 GHz on the Xeon X5660 versus 4.1 GHz on the Core i5-8365U — a 24.7% clock advantage for the Core i5-8365U (base: 2.8 GHz vs 1.6 GHz). The Xeon X5660 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Core i5-8365U uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Xeon X5660 scores 5,979 against the Core i5-8365U's 5,939 — a 0.7% lead for the Xeon X5660. L3 cache: 12 MB (total) on the Xeon X5660 vs 6 MB (total) on the Core i5-8365U.
| Feature | Xeon X5660 | Core i5-8365U |
|---|---|---|
| Cores / Threads | 6 / 12+50% | 4 / 8 |
| Boost Clock | 3.2 GHz | 4.1 GHz+28% |
| Base Clock | 2.8 GHz+75% | 1.6 GHz |
| L3 Cache | 12 MB (total)+100% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm | 14 nm-56% |
| Architecture | Westmere-EP (2010−2011) | Whiskey Lake-U (2018−2019) |
| PassMark | 5,979 | 5,939 |
Memory & Platform
The Xeon X5660 uses the LGA1366 socket (PCIe 2.0), while the Core i5-8365U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon X5660 | Core i5-8365U |
|---|---|---|
| Socket | LGA1366 | FCBGA1528 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1333 | — |
| RAM Channels | 3 | — |
| ECC Support | ✅ | — |
Advanced Features
Virtualization: VT-x, VT-d, EPT (Xeon X5660) / not specified (Core i5-8365U). Primary use case: Xeon X5660 targets Workstation. Direct competitor: Xeon X5660 rivals Core i7-980X.
| Feature | Xeon X5660 | Core i5-8365U |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d, EPT | — |
| Target Use | Workstation | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Xeon X5660 and Core i5-8365U
