
Celeron 3965Y

Pentium E6600
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 Celeron 3965Y is positioned at rank 198 and the Pentium E6600 is on rank 912, so the Celeron 3965Y offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 3965Y
Performance Per Dollar Pentium E6600
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 3965Y | Pentium E6600 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($50) |
| Longevity | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) | 🛑 Legacy (Wolfdale (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | Celeron 3965Y | Pentium E6600 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($50) |
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 Celeron 3965Y and Pentium E6600

Celeron 3965Y
The Celeron 3965Y is manufactured by Intel. It was released in 2007-01-01. It is based on the Kaby Lake (2016−2019) architecture. It features 2 cores and 2 threads. Base frequency is 1.5 GHz, with boost up to 1.3 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: FCBGA1515. Thermal design power (TDP): 6 Watt. Memory support: DDR3. Passmark benchmark score: 1,201 points. Launch price was $69.

Pentium E6600
The Pentium E6600 is manufactured by Intel. It was released in 17 January 2010 (15 years ago). It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3.06 GHz, with boost up to 0.07 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,194 points. Launch price was $16.
Processing Power
Both the Celeron 3965Y and Pentium E6600 share an identical 2-core/2-thread configuration. Boost clocks reach 1.3 GHz on the Celeron 3965Y versus 0.07 GHz on the Pentium E6600 — a 179.6% clock advantage for the Celeron 3965Y (base: 1.5 GHz vs 3.06 GHz). The Celeron 3965Y uses the Kaby Lake (2016−2019) architecture (14 nm), while the Pentium E6600 uses Wolfdale (2008−2010) (45 nm). In PassMark, the Celeron 3965Y scores 1,201 against the Pentium E6600's 1,194 — a 0.6% lead for the Celeron 3965Y. L3 cache: 2 MB on the Celeron 3965Y vs 0 kB on the Pentium E6600.
| Feature | Celeron 3965Y | Pentium E6600 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.3 GHz+1757% | 0.07 GHz |
| Base Clock | 1.5 GHz | 3.06 GHz+104% |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | 512 kB | 2 MB (total)+300% |
| Process | 14 nm-69% | 45 nm |
| Architecture | Kaby Lake (2016−2019) | Wolfdale (2008−2010) |
| PassMark | 1,201 | 1,194 |
| Geekbench 6 Single | 372 | — |
| Geekbench 6 Multi | 708 | — |
Memory & Platform
The Celeron 3965Y uses the FCBGA1515 socket (PCIe 3.0), while the Pentium E6600 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Celeron 3965Y | Pentium E6600 |
|---|---|---|
| Socket | FCBGA1515 | LGA775 |
| PCIe Generation | PCIe 3.0+173% | PCIe 1.1 |
| Max RAM Speed | LPDDR3-1866 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 10 | — |
Advanced Features
Virtualization: VT-x, VT-d (Celeron 3965Y) / not specified (Pentium E6600). The Celeron 3965Y includes integrated graphics (Intel HD Graphics 615), while the Pentium E6600 requires a dedicated GPU. Primary use case: Celeron 3965Y targets Low Power. Direct competitor: Celeron 3965Y rivals Pentium Gold 4415Y.
| Feature | Celeron 3965Y | Pentium E6600 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel HD Graphics 615 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Low Power | — |
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