Core i5-6600 vs Core i7-8565U
Core i5-6600
Core i7-8565U
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 i5-6600 is positioned at rank 641 and the Core i7-8565U is on rank 988, so the Core i5-6600 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-6600
Performance Per Dollar Core i7-8565U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-6600 | Core i7-8565U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($90) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Skylake (2015−2016) / 14 nm) | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) |
💎 Value Proposition
| Insight | Core i5-6600 | Core i7-8565U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($90) | ✅ 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 Core i5-6600 and Core i7-8565U
Core i5-6600
The Core i5-6600 is manufactured by Intel. It was released in 1 July 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.9 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 6,058 points. Launch price was $224.
Core i7-8565U
The Core i7-8565U 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 1.8 GHz, with boost up to 4.6 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: 5,976 points. Launch price was $409.
Processing Power
The Core i5-6600 packs 4 cores / 4 threads, matching the Core i7-8565U's 4 cores. Boost clocks reach 3.9 GHz on the Core i5-6600 versus 4.6 GHz on the Core i7-8565U — a 16.5% clock advantage for the Core i7-8565U (base: 3.3 GHz vs 1.8 GHz). The Core i5-6600 uses the Skylake (2015−2016) architecture (14 nm), while the Core i7-8565U uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Core i5-6600 scores 6,058 against the Core i7-8565U's 5,976 — a 1.4% lead for the Core i5-6600. L3 cache: 6 MB (total) on the Core i5-6600 vs 8 MB (total) on the Core i7-8565U.
| Feature | Core i5-6600 | Core i7-8565U |
|---|---|---|
| Cores / Threads | 4 / 4 | 4 / 8 |
| Boost Clock | 3.9 GHz | 4.6 GHz+18% |
| Base Clock | 3.3 GHz+83% | 1.8 GHz |
| L3 Cache | 6 MB (total) | 8 MB (total)+33% |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Skylake (2015−2016) | Whiskey Lake-U (2018−2019) |
| PassMark | 6,058+1% | 5,976 |
Memory & Platform
The Core i5-6600 uses the LGA1151 socket (PCIe 3.0), while the Core i7-8565U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i5-6600 | Core i7-8565U |
|---|---|---|
| Socket | LGA1151 | FCBGA1528 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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