Celeron 5305U vs A6-3420M
Celeron 5305U
A6-3420M
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 A6-3420M is on rank 837, so the Celeron 5305U 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 A6-3420M
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 5305U | A6-3420M |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | 🛑 Legacy (Llano (2011−2012) / 32 nm) |
💎 Value Proposition
| Insight | Celeron 5305U | A6-3420M |
|---|---|---|
| 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 A6-3420M
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.
A6-3420M
The A6-3420M is manufactured by AMD. It was released in 2014-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 1.5 GHz, with boost up to 2.4 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FS1. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,310 points. Launch price was $70.
Processing Power
The Celeron 5305U packs 2 cores / 2 threads, while the A6-3420M offers 4 cores / 4 threads — the A6-3420M has 2 more cores. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 2.4 GHz on the A6-3420M — a 4.3% clock advantage for the A6-3420M (base: 2.3 GHz vs 1.5 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the A6-3420M uses Llano (2011−2012) (32 nm). In PassMark, the Celeron 5305U scores 1,307 against the A6-3420M's 1,310 — a 0.2% lead for the A6-3420M. Geekbench 6 single-core — the metric most relevant to gaming — records 480 vs 234, a 68.9% lead for the Celeron 5305U that directly translates to higher frame rates. L3 cache: 2 MB on the Celeron 5305U vs 0 kB on the A6-3420M.
| Feature | Celeron 5305U | A6-3420M |
|---|---|---|
| Cores / Threads | 2 / 2 | 4 / 4+100% |
| Boost Clock | 2.3 GHz | 2.4 GHz+4% |
| Base Clock | 2.3 GHz+53% | 1.5 GHz |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | — | 1 MB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Comet Lake-U (2019−2020) | Llano (2011−2012) |
| PassMark | 1,307 | 1,310 |
| Geekbench 6 Single | 480+105% | 234 |
| Geekbench 6 Multi | 865 | — |
Memory & Platform
The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the A6-3420M uses FS1 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus DDR3-1333 on the A6-3420M — 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 8 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 16 (A6-3420M) — the A6-3420M offers 4 more lanes for additional GPUs or NVMe drives.
| Feature | Celeron 5305U | A6-3420M |
|---|---|---|
| Socket | FCBGA1528 | FS1 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2400+33% | DDR3-1333 |
| Max RAM Capacity | 64 GB+700% | 8 GB |
| 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 AMD-V (A6-3420M). Both include integrated graphics — UHD Graphics (Comet Lake) (Celeron 5305U) and Radeon HD 6520G (A6-3420M) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 5305U targets Budget, A6-3420M targets Budget Laptop. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U; A6-3420M rivals Core i3-2330M.
| Feature | Celeron 5305U | A6-3420M |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | UHD Graphics (Comet Lake) | Radeon HD 6520G |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | AMD-V |
| Target Use | Budget | Budget Laptop |
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