Core i7-8665U vs Xeon E5-1428L
Core i7-8665U
Xeon E5-1428L
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 Core i7-8665U is positioned at rank 544 and the Xeon E5-1428L is on rank 460, so the Xeon E5-1428L offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-8665U
Performance Per Dollar Xeon E5-1428L
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-8665U | Xeon E5-1428L |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($480) |
| Longevity | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) | 🛑 Legacy (Sandy Bridge-EN (2012) / 32 nm) |
💎 Value Proposition
| Insight | Core i7-8665U | Xeon E5-1428L |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($480) |
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 Core i7-8665U and Xeon E5-1428L
Core i7-8665U
The Core i7-8665U is manufactured by Intel. It was released in 1 October 2018 (7 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.9 GHz, with boost up to 4.8 GHz. L3 cache: 8 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: 6,202 points. Launch price was $409.
Xeon E5-1428L
The Xeon E5-1428L is manufactured by Intel. It was released in 2015-01-01. It is based on the Sandy Bridge-EN (2012) architecture. It features 6 cores and 12 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 15360 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1356. Thermal design power (TDP): 60 Watt. Memory support: DDR3. Passmark benchmark score: 6,255 points. Launch price was $800.
Processing Power
The Core i7-8665U packs 4 cores / 8 threads, while the Xeon E5-1428L offers 6 cores / 12 threads — the Xeon E5-1428L has 2 more cores. Boost clocks reach 4.8 GHz on the Core i7-8665U versus 1.8 GHz on the Xeon E5-1428L — a 90.9% clock advantage for the Core i7-8665U (base: 1.9 GHz vs 1.8 GHz). The Core i7-8665U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Xeon E5-1428L uses Sandy Bridge-EN (2012) (32 nm). In PassMark, the Core i7-8665U scores 6,202 against the Xeon E5-1428L's 6,255 — a 0.9% lead for the Xeon E5-1428L. L3 cache: 8 MB (total) on the Core i7-8665U vs 15360 kB (total) on the Xeon E5-1428L.
| Feature | Core i7-8665U | Xeon E5-1428L |
|---|---|---|
| Cores / Threads | 4 / 8 | 6 / 12+50% |
| Boost Clock | 4.8 GHz+167% | 1.8 GHz |
| Base Clock | 1.9 GHz+6% | 1.8 GHz |
| L3 Cache | 8 MB (total) | 15360 kB (total)+88% |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Whiskey Lake-U (2018−2019) | Sandy Bridge-EN (2012) |
| PassMark | 6,202 | 6,255 |
Memory & Platform
The Core i7-8665U uses the FCBGA1528 socket (PCIe 3.0), while the Xeon E5-1428L uses LGA1356 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core i7-8665U | Xeon E5-1428L |
|---|---|---|
| Socket | FCBGA1528 | LGA1356 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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