Celeron 5305U vs Core 2 Duo E8500
Celeron 5305U
Core 2 Duo E8500
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 5305U is positioned at rank 656 and the Core 2 Duo E8500 is on rank 427, so the Core 2 Duo E8500 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 5305U
Performance Per Dollar Core 2 Duo E8500
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 5305U | Core 2 Duo E8500 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($26) |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | 🛑 Legacy (Wolfdale (2008−2010) / 45 nm) |
💎 Value Proposition
| Insight | Celeron 5305U | Core 2 Duo E8500 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($26) |
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 5305U and Core 2 Duo E8500
Celeron 5305U
The Celeron 5305U is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 2 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 2 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2400, LPDDR3-2133. Passmark benchmark score: 1,307 points. Launch price was $69.
Core 2 Duo E8500
The Core 2 Duo E8500 is manufactured by Intel. It was released in 2008-01-01. It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3.16 GHz, with boost up to 3.17 GHz. L3 cache: 0 kB. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,297 points. Launch price was $249.
Processing Power
Both the Celeron 5305U and Core 2 Duo E8500 share an identical 2-core/2-thread configuration. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 3.17 GHz on the Core 2 Duo E8500 — a 31.8% clock advantage for the Core 2 Duo E8500 (base: 2.3 GHz vs 3.16 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Core 2 Duo E8500 uses Wolfdale (2008−2010) (45 nm). In PassMark, the Celeron 5305U scores 1,307 against the Core 2 Duo E8500's 1,297 — a 0.8% lead for the Celeron 5305U. L3 cache: 2 MB on the Celeron 5305U vs 0 kB on the Core 2 Duo E8500.
| Feature | Celeron 5305U | Core 2 Duo E8500 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.3 GHz | 3.17 GHz+38% |
| Base Clock | 2.3 GHz | 3.16 GHz+37% |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | — | 6 MB (total) |
| Process | 14 nm-69% | 45 nm |
| Architecture | Comet Lake-U (2019−2020) | Wolfdale (2008−2010) |
| PassMark | 1,307 | 1,297 |
| Geekbench 6 Single | 480 | — |
| Geekbench 6 Multi | 865 | — |
Memory & Platform
The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Core 2 Duo E8500 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus 1333 on the Core 2 Duo E8500 — the Core 2 Duo E8500 supports 198.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 5305U supports up to 64 GB of RAM compared to 16 — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 16 (Core 2 Duo E8500) — the Core 2 Duo E8500 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and P35,G31,G33,P45 (Core 2 Duo E8500).
| Feature | Celeron 5305U | Core 2 Duo E8500 |
|---|---|---|
| Socket | FCBGA1528 | LGA775 |
| PCIe Generation | PCIe 3.0+173% | PCIe 1.1 |
| Max RAM Speed | DDR4-2400 | 1333+33225% |
| Max RAM Capacity | 64 GB+419430300% | 16 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12 | 16+33% |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Celeron 5305U) vs true (Core 2 Duo E8500). The Celeron 5305U includes integrated graphics (UHD Graphics (Comet Lake)), while the Core 2 Duo E8500 requires a dedicated GPU. Primary use case: Celeron 5305U targets Budget. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U; Core 2 Duo E8500 rivals Phenom II X2 550.
| Feature | Celeron 5305U | Core 2 Duo E8500 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | UHD Graphics (Comet Lake) | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | true |
| Target Use | Budget | — |
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