
Celeron 5305U

Core i3-3227U
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 i3-3227U is on rank 599, so the Core i3-3227U 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 i3-3227U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 5305U | Core i3-3227U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | 🛑 Legacy (Ivy Bridge (2012−2013) / 22 nm) |
💎 Value Proposition
| Insight | Celeron 5305U | Core i3-3227U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 i3-3227U

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 i3-3227U
The Core i3-3227U is manufactured by Intel. It was released in 8 January 2013 (12 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 4 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 1,299 points. Launch price was $225.
Processing Power
The Celeron 5305U packs 2 cores / 2 threads, matching the Core i3-3227U's 2 cores. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 1.9 GHz on the Core i3-3227U — a 19% clock advantage for the Celeron 5305U (base: 2.3 GHz vs 1.9 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Core i3-3227U uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the Celeron 5305U scores 1,307 against the Core i3-3227U's 1,299 — a 0.6% lead for the Celeron 5305U. Geekbench 6 single-core — the metric most relevant to gaming — records 480 vs 400, a 18.2% lead for the Celeron 5305U that directly translates to higher frame rates. Multi-core Geekbench: 865 vs 900 (4% advantage for the Core i3-3227U). L3 cache: 2 MB on the Celeron 5305U vs 3 MB (total) on the Core i3-3227U.
| Feature | Celeron 5305U | Core i3-3227U |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 2.3 GHz+21% | 1.9 GHz |
| Base Clock | 2.3 GHz+21% | 1.9 GHz |
| L3 Cache | 2 MB | 3 MB (total)+50% |
| L2 Cache | — | 256K (per core) |
| Process | 14 nm-36% | 22 nm |
| Architecture | Comet Lake-U (2019−2020) | Ivy Bridge (2012−2013) |
| PassMark | 1,307 | 1,299 |
| Geekbench 6 Single | 480+20% | 400 |
| Geekbench 6 Multi | 865 | 900+4% |
Memory & Platform
The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Core i3-3227U uses BGA1023 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus DDR3-1600 on the Core i3-3227U — the Celeron 5305U supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 5305U supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 16 (Core i3-3227U) — the Core i3-3227U offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and HM77,HM76 (Core i3-3227U).
| Feature | Celeron 5305U | Core i3-3227U |
|---|---|---|
| Socket | FCBGA1528 | BGA1023 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2400+33% | DDR3-1600 |
| Max RAM Capacity | 64 GB+100% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12 | 16+33% |
Advanced Features
Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — UHD Graphics (Comet Lake) (Celeron 5305U) and Intel HD Graphics 4000 (Core i3-3227U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 5305U targets Budget, Core i3-3227U targets Legacy Ultrabook. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U; Core i3-3227U rivals AMD A6-4455M.
| Feature | Celeron 5305U | Core i3-3227U |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | UHD Graphics (Comet Lake) | Intel HD Graphics 4000 |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
| Target Use | Budget | Legacy Ultrabook |
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