Athlon X2 450 vs Celeron 5305U
Athlon X2 450
Celeron 5305U
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 Athlon X2 450 is positioned at rank 760 and the Celeron 5305U is on rank 656, 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 Athlon X2 450
Performance Per Dollar Celeron 5305U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon X2 450 | Celeron 5305U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Kaveri (2014−2015) / 28 nm) | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) |
💎 Value Proposition
| Insight | Athlon X2 450 | Celeron 5305U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
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 Athlon X2 450 and Celeron 5305U
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.
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.
Processing Power
Both the Athlon X2 450 and Celeron 5305U share an identical 2-core/2-thread configuration. Boost clocks reach 3.9 GHz on the Athlon X2 450 versus 2.3 GHz on the Celeron 5305U — a 51.6% clock advantage for the Athlon X2 450 (base: 3.5 GHz vs 2.3 GHz). The Athlon X2 450 uses the Kaveri (2014−2015) architecture (28 nm), while the Celeron 5305U uses Comet Lake-U (2019−2020) (14 nm). In PassMark, the Athlon X2 450 scores 1,295 against the Celeron 5305U's 1,307 — a 0.9% lead for the Celeron 5305U. Geekbench 6 single-core — the metric most relevant to gaming — records 450 vs 480, a 6.5% lead for the Celeron 5305U that directly translates to higher frame rates. Multi-core Geekbench: 800 vs 865 (7.8% advantage for the Celeron 5305U).
| Feature | Athlon X2 450 | Celeron 5305U |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 3.9 GHz+70% | 2.3 GHz |
| Base Clock | 3.5 GHz+52% | 2.3 GHz |
| L3 Cache | — | 2 MB |
| L2 Cache | 1 MB (total) | — |
| Process | 28 nm | 14 nm-50% |
| Architecture | Kaveri (2014−2015) | Comet Lake-U (2019−2020) |
| PassMark | 1,295 | 1,307 |
| Cinebench R23 Multi | 1,500 | — |
| Geekbench 6 Single | 450 | 480+7% |
| Geekbench 6 Multi | 800 | 865+8% |
Memory & Platform
The Athlon X2 450 uses the FM2+ socket (PCIe 3.0), while the Celeron 5305U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1866 on the Athlon X2 450 versus DDR4-2400 on the Celeron 5305U — 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: 16 (Athlon X2 450) vs 12 (Celeron 5305U) — the Athlon X2 450 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A88X,A78,A68H (Athlon X2 450) and Comet Lake-U (Celeron 5305U).
| Feature | Athlon X2 450 | Celeron 5305U |
|---|---|---|
| Socket | FM2+ | FCBGA1528 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR3-1866 | DDR4-2400+33% |
| Max RAM Capacity | 16 GB | 64 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16+33% | 12 |
Advanced Features
Neither processor supports overclocking. Virtualization support: AMD-V (Athlon X2 450) vs VT-x, VT-d (Celeron 5305U). The Celeron 5305U includes integrated graphics (UHD Graphics (Comet Lake)), while the Athlon X2 450 requires a dedicated GPU. Primary use case: Athlon X2 450 targets Basic Desktop, Celeron 5305U targets Budget. Direct competitor: Athlon X2 450 rivals Core i3-3220; Celeron 5305U rivals Pentium Gold 6405U.
| Feature | Athlon X2 450 | Celeron 5305U |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | UHD Graphics (Comet Lake) |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | AMD-V | VT-x, VT-d |
| Target Use | Basic Desktop | Budget |
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