Celeron 5305U vs Athlon II X3 400e
Celeron 5305U
Athlon II X3 400e
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 Athlon II X3 400e is on rank 938, 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 Athlon II X3 400e
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 5305U | Athlon II X3 400e |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | 🛑 Legacy (Rana (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Celeron 5305U | Athlon II X3 400e |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
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 Athlon II X3 400e
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.
Athlon II X3 400e
The Athlon II X3 400e is manufactured by AMD. It was released in 20 October 2009 (16 years ago). It is based on the Rana (2009−2011) architecture. It features 3 cores and 3 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 1,320 points. Launch price was $107.
Processing Power
The Celeron 5305U packs 2 cores / 2 threads, while the Athlon II X3 400e offers 3 cores / 3 threads — the Athlon II X3 400e has 1 more core. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 2.2 GHz on the Athlon II X3 400e — a 4.4% clock advantage for the Celeron 5305U (base: 2.3 GHz vs 2.2 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Athlon II X3 400e uses Rana (2009−2011) (45 nm). In PassMark, the Celeron 5305U scores 1,307 against the Athlon II X3 400e's 1,320 — a 1% lead for the Athlon II X3 400e. L3 cache: 2 MB on the Celeron 5305U vs 0 kB on the Athlon II X3 400e.
| Feature | Celeron 5305U | Athlon II X3 400e |
|---|---|---|
| Cores / Threads | 2 / 2 | 3 / 3+50% |
| Boost Clock | 2.3 GHz+5% | 2.2 GHz |
| Base Clock | 2.3 GHz+5% | 2.2 GHz |
| L3 Cache | 2 MB | 0 kB |
| L2 Cache | — | 512 kB (per core) |
| Process | 14 nm-69% | 45 nm |
| Architecture | Comet Lake-U (2019−2020) | Rana (2009−2011) |
| PassMark | 1,307 | 1,320 |
| Geekbench 6 Single | 480 | — |
| Geekbench 6 Multi | 865 | — |
Memory & Platform
The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Athlon II X3 400e uses AM3 (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 Athlon II X3 400e — 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 0 (Athlon II X3 400e) — the Celeron 5305U offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and AMD AM3 (Athlon II X3 400e).
| Feature | Celeron 5305U | Athlon II X3 400e |
|---|---|---|
| Socket | FCBGA1528 | AM3 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2400+33% | DDR3-1333 |
| Max RAM Capacity | 64 GB+100% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 12 | 0 |
Advanced Features
Virtualization: VT-x, VT-d (Celeron 5305U) / not specified (Athlon II X3 400e). The Celeron 5305U includes integrated graphics (UHD Graphics (Comet Lake)), while the Athlon II X3 400e requires a dedicated GPU. Primary use case: Celeron 5305U targets Budget. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U.
| Feature | Celeron 5305U | Athlon II X3 400e |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | UHD Graphics (Comet Lake) | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Budget | — |
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