Pentium Gold G6600 vs Core i5-6400T
Pentium Gold G6600
Core i5-6400T
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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar
Performance Per Dollar Core i5-6400T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium Gold G6600 | Core i5-6400T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($40) |
| Longevity | ✨ Modern (Comet Lake (2020−2025) / 14 nm) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Pentium Gold G6600 | Core i5-6400T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($40) |
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 Pentium Gold G6600 and Core i5-6400T
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.
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.
Processing Power
The Pentium Gold G6600 packs 2 cores / 4 threads, while the Core i5-6400T offers 4 cores / 4 threads — the Core i5-6400T has 2 more cores. Boost clocks reach 4.2 GHz on the Pentium Gold G6600 versus 2.8 GHz on the Core i5-6400T — a 40% clock advantage for the Pentium Gold G6600 (base: 4.2 GHz vs 2.2 GHz). The Pentium Gold G6600 uses the Comet Lake (2020−2025) architecture (14 nm), while the Core i5-6400T uses Skylake (2015−2016) (14 nm). In PassMark, the Pentium Gold G6600 scores 4,223 against the Core i5-6400T's 4,243 — a 0.5% lead for the Core i5-6400T. L3 cache: 4 MB (total) on the Pentium Gold G6600 vs 6 MB on the Core i5-6400T.
| Feature | Pentium Gold G6600 | Core i5-6400T |
|---|---|---|
| Cores / Threads | 2 / 4 | 4 / 4+100% |
| Boost Clock | 4.2 GHz+50% | 2.8 GHz |
| Base Clock | 4.2 GHz+91% | 2.2 GHz |
| L3 Cache | 4 MB (total) | 6 MB+50% |
| L2 Cache | 256K (per core) | 1 MB+300% |
| Process | 14 nm | 14 nm |
| Architecture | Comet Lake (2020−2025) | Skylake (2015−2016) |
| PassMark | 4,223 | 4,243 |
| Cinebench R23 Multi | — | 2,200 |
| Geekbench 6 Single | — | 950 |
| Geekbench 6 Multi | — | 2,600 |
Memory & Platform
The Pentium Gold G6600 uses the LGA1200 socket (PCIe 3.0), while the Core i5-6400T uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Pentium Gold G6600 | Core i5-6400T |
|---|---|---|
| Socket | LGA1200 | LGA1151 |
| 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: not specified (Pentium Gold G6600) / VT-x, VT-d (Core i5-6400T). 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 | Pentium Gold G6600 | Core i5-6400T |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | HD 530 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Budget |
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