Core i5-6400T vs Pentium Gold G6600
Core i5-6400T
Pentium Gold G6600
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 i5-6400T is positioned at rank #747 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 i5-6400T
Performance Per Dollar
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-6400T | Pentium Gold G6600 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($40) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Skylake (2015−2016) / 14 nm) | ✨ Modern (Comet Lake (2020−2025) / 14 nm) |
💎 Value Proposition
| Insight | Core i5-6400T | Pentium Gold G6600 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($40) | ✅ 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 i5-6400T and Pentium Gold G6600
Core i5-6400T
The Core i5-6400T is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 2.8 GHz. L3 cache: 6 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 4,243 points. Launch price was $192.
Pentium Gold G6600
The Pentium Gold G6600 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 4.2 GHz, with boost up to 4.2 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: 4,223 points. Launch price was $69.
Processing Power
The Core i5-6400T packs 4 cores / 4 threads, while the Pentium Gold G6600 offers 2 cores / 4 threads — the Core i5-6400T has 2 more cores. Boost clocks reach 2.8 GHz on the Core i5-6400T versus 4.2 GHz on the Pentium Gold G6600 — a 40% clock advantage for the Pentium Gold G6600 (base: 2.2 GHz vs 4.2 GHz). The Core i5-6400T uses the Skylake (2015−2016) architecture (14 nm), while the Pentium Gold G6600 uses Comet Lake (2020−2025) (14 nm). In PassMark, the Core i5-6400T scores 4,243 against the Pentium Gold G6600's 4,223 — a 0.5% lead for the Core i5-6400T. L3 cache: 6 MB on the Core i5-6400T vs 4 MB (total) on the Pentium Gold G6600.
| Feature | Core i5-6400T | Pentium Gold G6600 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 4 |
| Boost Clock | 2.8 GHz | 4.2 GHz+50% |
| Base Clock | 2.2 GHz | 4.2 GHz+91% |
| L3 Cache | 6 MB+50% | 4 MB (total) |
| L2 Cache | 1 MB+300% | 256K (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Skylake (2015−2016) | Comet Lake (2020−2025) |
| PassMark | 4,243 | 4,223 |
| Cinebench R23 Multi | 2,200 | — |
| Geekbench 6 Single | 950 | — |
| Geekbench 6 Multi | 2,600 | — |
Memory & Platform
The Core i5-6400T uses the LGA1151 socket (PCIe 3.0), while the Pentium Gold G6600 uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i5-6400T | Pentium Gold G6600 |
|---|---|---|
| Socket | LGA1151 | LGA1200 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2133 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i5-6400T) / not specified (Pentium Gold G6600). The Core i5-6400T includes integrated graphics (HD 530), while the Pentium Gold G6600 requires a dedicated GPU. Primary use case: Core i5-6400T targets Budget. Direct competitor: Core i5-6400T rivals Core i3-7100.
| Feature | Core i5-6400T | Pentium Gold G6600 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | HD 530 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Budget | — |
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