
Pentium E6600 vs Celeron 3965Y

Pentium E6600

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

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.

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.
Processing Power
Both the Pentium E6600 and Celeron 3965Y share an identical 2-core/2-thread configuration. Boost clocks reach 0.07 GHz on the Pentium E6600 versus 1.3 GHz on the Celeron 3965Y — a 179.6% clock advantage for the Celeron 3965Y (base: 3.06 GHz vs 1.5 GHz). The Pentium E6600 uses the Wolfdale (2008−2010) architecture (45 nm), while the Celeron 3965Y uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Pentium E6600 scores 1,194 against the Celeron 3965Y's 1,201 — a 0.6% lead for the Celeron 3965Y. L3 cache: 0 kB on the Pentium E6600 vs 2 MB on the Celeron 3965Y.
| Feature | Pentium E6600 | Celeron 3965Y |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 0.07 GHz | 1.3 GHz+1757% |
| Base Clock | 3.06 GHz+104% | 1.5 GHz |
| L3 Cache | 0 kB | 2 MB |
| L2 Cache | 2 MB (total)+300% | 512 kB |
| Process | 45 nm | 14 nm-69% |
| Architecture | Wolfdale (2008−2010) | Kaby Lake (2016−2019) |
| PassMark | 1,194 | 1,201 |
| Geekbench 6 Single | — | 372 |
| Geekbench 6 Multi | — | 708 |
Memory & Platform
The Pentium E6600 uses the LGA775 socket (PCIe 1.1), while the Celeron 3965Y uses FCBGA1515 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Pentium E6600 | Celeron 3965Y |
|---|---|---|
| Socket | LGA775 | FCBGA1515 |
| PCIe Generation | PCIe 1.1 | PCIe 3.0+173% |
| Max RAM Speed | — | LPDDR3-1866 |
| Max RAM Capacity | — | 16 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 10 |
Advanced Features
Virtualization: not specified (Pentium E6600) / VT-x, VT-d (Celeron 3965Y). 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 | Pentium E6600 | Celeron 3965Y |
|---|---|---|
| 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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