
Celeron 4305U vs Core 2 Duo T5600

Celeron 4305U

Core 2 Duo T5600
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 4305U is positioned at rank 109 and the Core 2 Duo T5600 is on rank 1179, so the Celeron 4305U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 4305U
Performance Per Dollar Core 2 Duo T5600
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 4305U | Core 2 Duo T5600 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($107) | ⚠️ Higher cost ($241) |
| Longevity | ✨ Modern (Whiskey Lake-U (2018−2019) / 14 nm) | 🛑 Legacy (Merom (2006−2008) / 65 nm) |
💎 Value Proposition
| Insight | Celeron 4305U | Core 2 Duo T5600 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+126%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($107) | ⚠️ Higher cost ($241) |
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 4305U and Core 2 Duo T5600

Celeron 4305U
The Celeron 4305U is manufactured by Intel. It was released in 16 April 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2133, LPDDR3-1866. Passmark benchmark score: 1,562 points. Launch price was $107.

Core 2 Duo T5600
The Core 2 Duo T5600 is manufactured by Intel. It was released in 28 July 2006 (19 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 1.83 GHz, with boost up to 1.83 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 34 Watt. Passmark benchmark score: 1,560 points. Launch price was $241.
Processing Power
Both the Celeron 4305U and Core 2 Duo T5600 share an identical 2-core/2-thread configuration. Boost clocks reach 2.2 GHz on the Celeron 4305U versus 1.83 GHz on the Core 2 Duo T5600 — a 18.4% clock advantage for the Celeron 4305U (base: 2.2 GHz vs 1.83 GHz). The Celeron 4305U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Core 2 Duo T5600 uses Merom (2006−2008) (65 nm). In PassMark, the Celeron 4305U scores 1,562 against the Core 2 Duo T5600's 1,560 — a 0.1% lead for the Celeron 4305U. L3 cache: 2 MB (total) on the Celeron 4305U vs 0 kB on the Core 2 Duo T5600.
| Feature | Celeron 4305U | Core 2 Duo T5600 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.2 GHz+20% | 1.83 GHz |
| Base Clock | 2.2 GHz+20% | 1.83 GHz |
| L3 Cache | 2 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 2 MB+700% |
| Process | 14 nm-78% | 65 nm |
| Architecture | Whiskey Lake-U (2018−2019) | Merom (2006−2008) |
| PassMark | 1,562 | 1,560 |
Memory & Platform
The Celeron 4305U uses the FCBGA1528 socket (PCIe 3.0), while the Core 2 Duo T5600 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 2133 on the Celeron 4305U versus DDR2-667 on the Core 2 Duo T5600 — the Celeron 4305U supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 4305U supports up to 64 of RAM compared to 4 GB — 176.5% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron 4305U) vs 0 (Core 2 Duo T5600) — the Celeron 4305U offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Whiskey Lake-U (Celeron 4305U) and 945GM,945PM (Core 2 Duo T5600).
| Feature | Celeron 4305U | Core 2 Duo T5600 |
|---|---|---|
| Socket | FCBGA1528 | PGA478 |
| PCIe Generation | PCIe 3.0+173% | PCIe 1.1 |
| Max RAM Speed | 2133+106550% | DDR2-667 |
| Max RAM Capacity | 64 | 4 GB+6553500% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Virtualization: true (Celeron 4305U) / not specified (Core 2 Duo T5600). The Celeron 4305U includes integrated graphics (Intel UHD Graphics 610), while the Core 2 Duo T5600 requires a dedicated GPU. Primary use case: Celeron 4305U targets Budget. Direct competitor: Celeron 4305U rivals Pentium Gold 5405U.
| Feature | Celeron 4305U | Core 2 Duo T5600 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel UHD Graphics 610 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | true | — |
| Target Use | Budget | — |
Value Analysis
The Celeron 4305U launched at $107 MSRP, while the Core 2 Duo T5600 debuted at $241.
| Feature | Celeron 4305U | Core 2 Duo T5600 |
|---|---|---|
| MSRP | $107-56% | $241 |
| Release Date | 2019 | 2006 |
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