
Core i7-8500Y vs Core i7-6660U

Core i7-8500Y

Core i7-6660U
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 i7-8500Y is positioned at rank 1035 and the Core i7-6660U is on rank 612, so the Core i7-6660U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-8500Y
Performance Per Dollar Core i7-6660U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-8500Y | Core i7-6660U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Amber Lake-Y (2018−2021) / 14 nm) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-8500Y | Core i7-6660U |
|---|---|---|
| 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 Core i7-8500Y and Core i7-6660U

Core i7-8500Y
The Core i7-8500Y is manufactured by Intel. It was released in 28 August 2018 (7 years ago). It is based on the Amber Lake-Y (2018−2021) architecture. It features 2 cores and 4 threads. Base frequency is 1.5 GHz, with boost up to 4.2 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: FCBGA1515. Thermal design power (TDP): 5 Watt. Memory support: DDR3. Passmark benchmark score: 3,590 points. Launch price was $393.

Core i7-6660U
The Core i7-6660U is manufactured by Intel. It was released in 20 March 2016 (9 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 2.4 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: DDR4-2133, LPDDR3-1866, DDR3L-1600. Passmark benchmark score: 3,628 points. Launch price was $415.
Processing Power
Both the Core i7-8500Y and Core i7-6660U share an identical 2-core/4-thread configuration. Boost clocks reach 4.2 GHz on the Core i7-8500Y versus 3.4 GHz on the Core i7-6660U — a 21.1% clock advantage for the Core i7-8500Y (base: 1.5 GHz vs 2.4 GHz). The Core i7-8500Y uses the Amber Lake-Y (2018−2021) architecture (14 nm), while the Core i7-6660U uses Skylake (2015−2016) (14 nm). In PassMark, the Core i7-8500Y scores 3,590 against the Core i7-6660U's 3,628 — a 1.1% lead for the Core i7-6660U. Both processors carry 4 MB of L3 cache.
| Feature | Core i7-8500Y | Core i7-6660U |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 4 |
| Boost Clock | 4.2 GHz+24% | 3.4 GHz |
| Base Clock | 1.5 GHz | 2.4 GHz+60% |
| L3 Cache | 4 MB | 4 MB |
| L2 Cache | 512 kB | 512 kB |
| Process | 14 nm | 14 nm |
| Architecture | Amber Lake-Y (2018−2021) | Skylake (2015−2016) |
| PassMark | 3,590 | 3,628+1% |
Memory & Platform
The Core i7-8500Y uses the FCBGA1515 socket (PCIe 3.0), while the Core i7-6660U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i7-8500Y | Core i7-6660U |
|---|---|---|
| Socket | FCBGA1515 | BGA1356 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
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