Core i7-7660U vs Pentium Gold G6400
Core i7-7660U
Pentium Gold G6400
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. The Core i7-7660U is positioned at rank #550 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i7-7660U
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-7660U | Pentium Gold G6400 |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) | ✨ Modern (Comet Lake (2020−2025) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-7660U | Pentium Gold G6400 |
|---|---|---|
| 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 i7-7660U and Pentium Gold G6400
Core i7-7660U
The Core i7-7660U is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 2 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 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. Passmark benchmark score: 4,059 points. Launch price was $415.
Pentium Gold G6400
The Pentium Gold G6400 is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake (2020−2025) architecture. It features 2 cores and 4 threads. Base frequency is 4 GHz, with boost up to 4 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 58 Watt. Memory support: DDR4-2666. Passmark benchmark score: 4,106 points. Launch price was $69.
Processing Power
Both the Core i7-7660U and Pentium Gold G6400 share an identical 2-core/4-thread configuration. Boost clocks reach 4 GHz on the Core i7-7660U versus 4 GHz on the Pentium Gold G6400 — identical boost frequencies (base: 2.5 GHz vs 4 GHz). The Core i7-7660U uses the Kaby Lake (2016−2019) architecture (14 nm), while the Pentium Gold G6400 uses Comet Lake (2020−2025) (14 nm). In PassMark, the Core i7-7660U scores 4,059 against the Pentium Gold G6400's 4,106 — a 1.2% lead for the Pentium Gold G6400. L3 cache: 4 MB on the Core i7-7660U vs 4 MB (total) on the Pentium Gold G6400.
| Feature | Core i7-7660U | Pentium Gold G6400 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 4 |
| Boost Clock | 4 GHz | 4 GHz |
| Base Clock | 2.5 GHz | 4 GHz+60% |
| L3 Cache | 4 MB | 4 MB (total) |
| L2 Cache | 512 kB+100% | 256K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Kaby Lake (2016−2019) | Comet Lake (2020−2025) |
| PassMark | 4,059 | 4,106+1% |
| Cinebench R23 Multi | 1,759 | — |
| Geekbench 6 Single | 1,150 | — |
| Geekbench 6 Multi | 2,285 | — |
Memory & Platform
The Core i7-7660U uses the BGA1356 socket (PCIe 3.0), while the Pentium Gold G6400 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i7-7660U | Pentium Gold G6400 |
|---|---|---|
| Socket | BGA1356 | LGA1200 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2133 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 12 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i7-7660U) / not specified (Pentium Gold G6400). The Core i7-7660U includes integrated graphics (Iris Plus 640), while the Pentium Gold G6400 requires a dedicated GPU. Primary use case: Core i7-7660U targets Productivity. Direct competitor: Core i7-7660U rivals Core i5-8250U.
| Feature | Core i7-7660U | Pentium Gold G6400 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Iris Plus 640 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Productivity | — |
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