Celeron 5305U vs Athlon X2 450
Celeron 5305U
Athlon X2 450
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 X2 450 is on rank 760, 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 X2 450
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 5305U | Athlon X2 450 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) | 🛑 Legacy (Kaveri (2014−2015) / 28 nm) |
💎 Value Proposition
| Insight | Celeron 5305U | Athlon X2 450 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
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 X2 450
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 X2 450
The Athlon X2 450 is manufactured by AMD. It was released in 2009-01-01. It is based on the Kaveri (2014−2015) architecture. It features 2 cores and 2 threads. Base frequency is 3.5 GHz, with boost up to 3.9 GHz. L2 cache: 1 MB (total). Built on 28 nm process technology. Socket: FM2+. Thermal design power (TDP): 65 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,295 points. Launch price was $149.
Processing Power
Both the Celeron 5305U and Athlon X2 450 share an identical 2-core/2-thread configuration. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 3.9 GHz on the Athlon X2 450 — a 51.6% clock advantage for the Athlon X2 450 (base: 2.3 GHz vs 3.5 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Athlon X2 450 uses Kaveri (2014−2015) (28 nm). In PassMark, the Celeron 5305U scores 1,307 against the Athlon X2 450's 1,295 — a 0.9% lead for the Celeron 5305U. Geekbench 6 single-core — the metric most relevant to gaming — records 480 vs 450, a 6.5% lead for the Celeron 5305U that directly translates to higher frame rates. Multi-core Geekbench: 865 vs 800 (7.8% advantage for the Celeron 5305U).
| Feature | Celeron 5305U | Athlon X2 450 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.3 GHz | 3.9 GHz+70% |
| Base Clock | 2.3 GHz | 3.5 GHz+52% |
| L3 Cache | 2 MB | — |
| L2 Cache | — | 1 MB (total) |
| Process | 14 nm-50% | 28 nm |
| Architecture | Comet Lake-U (2019−2020) | Kaveri (2014−2015) |
| PassMark | 1,307 | 1,295 |
| Cinebench R23 Multi | — | 1,500 |
| Geekbench 6 Single | 480+7% | 450 |
| Geekbench 6 Multi | 865+8% | 800 |
Memory & Platform
The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Athlon X2 450 uses FM2+ (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus DDR3-1866 on the Athlon X2 450 — 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 16 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 16 (Athlon X2 450) — the Athlon X2 450 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and A88X,A78,A68H (Athlon X2 450).
| Feature | Celeron 5305U | Athlon X2 450 |
|---|---|---|
| Socket | FCBGA1528 | FM2+ |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2400+33% | DDR3-1866 |
| Max RAM Capacity | 64 GB+300% | 16 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 (Athlon X2 450). The Celeron 5305U includes integrated graphics (UHD Graphics (Comet Lake)), while the Athlon X2 450 requires a dedicated GPU. Primary use case: Celeron 5305U targets Budget, Athlon X2 450 targets Basic Desktop. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U; Athlon X2 450 rivals Core i3-3220.
| Feature | Celeron 5305U | Athlon X2 450 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | UHD Graphics (Comet Lake) | None |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | AMD-V |
| Target Use | Budget | Basic Desktop |
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