CPU
GPU
Celeron 450
Ryzen 9 5900X
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. The Celeron 450 is positioned at rank #1004 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 450
Performance Per Dollar Ryzen 9 5900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 450 | Ryzen 9 5900X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($5) | ⚠️ Higher cost ($350) |
| Longevity | 🛑 Legacy (Conroe-L (2007−2008) / 65 nm) | ✨ Modern (Vermeer (Zen3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Celeron 450 | Ryzen 9 5900X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+12%) |
| Upfront Cost | ✅ More affordable ($5) | ⚠️ Higher cost ($350) |
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 450 and Ryzen 9 5900X
Celeron 450
The Celeron 450 is manufactured by Intel. It was released in 31 August 2008 (17 years ago). It is based on the Conroe-L (2007−2008) architecture. It features 1 cores and 1 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 35 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 495 points. Launch price was $53.
Ryzen 9 5900X
The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.
Processing Power
The Celeron 450 packs 1 cores / 1 threads, while the Ryzen 9 5900X offers 12 cores / 24 threads — the Ryzen 9 5900X has 11 more cores. Boost clocks reach 2.2 GHz on the Celeron 450 versus 4.8 GHz on the Ryzen 9 5900X — a 74.3% clock advantage for the Ryzen 9 5900X (base: 2.2 GHz vs 3.7 GHz). The Celeron 450 uses the Conroe-L (2007−2008) architecture (65 nm), while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Celeron 450 scores 495 against the Ryzen 9 5900X's 38,955 — a 195% lead for the Ryzen 9 5900X. Multi-core Geekbench: 269 vs 11,888 (191.1% advantage for the Ryzen 9 5900X). L3 cache: 0 kB on the Celeron 450 vs 64 MB on the Ryzen 9 5900X.
| Feature | Celeron 450 | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 1 / 1 | 12 / 24+1100% |
| Boost Clock | 2.2 GHz | 4.8 GHz+118% |
| Base Clock | 2.2 GHz | 3.7 GHz+68% |
| L3 Cache | 0 kB | 64 MB |
| L2 Cache | 512 kB | 512K (per core) |
| Process | 65 nm | 7 nm, 12 nm-89% |
| Architecture | Conroe-L (2007−2008) | Vermeer (Zen3) (2020−2022) |
| PassMark | 495 | 38,955+7770% |
| Cinebench R23 Multi | — | 21,000 |
| Geekbench 6 Single | — | 2,174 |
| Geekbench 6 Multi | 269 | 11,888+4319% |
Memory & Platform
The Celeron 450 uses the LGA775 socket (PCIe 1.1), while the Ryzen 9 5900X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-800 on the Celeron 450 versus DDR4-3200 on the Ryzen 9 5900X — the Ryzen 9 5900X supports 66.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 5900X supports up to 128 GB of RAM compared to 4 GB — 187.9% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Celeron 450) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 945,G31,G41 (Celeron 450) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | Celeron 450 | Ryzen 9 5900X |
|---|---|---|
| Socket | LGA775 | AM4 |
| PCIe Generation | PCIe 1.1 | PCIe 4.0+264% |
| Max RAM Speed | DDR2-800 | DDR4-3200+100% |
| Max RAM Capacity | 4 GB | 128 GB+3100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 24 |
Advanced Features
Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: No (Celeron 450) vs AMD-V (Ryzen 9 5900X). Primary use case: Celeron 450 targets Budget, Ryzen 9 5900X targets Workstation. Direct competitor: Celeron 450 rivals Pentium 4 2.80; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | Celeron 450 | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | No | AMD-V |
| Target Use | Budget | Workstation |
Value Analysis
The Celeron 450 launched at $53 MSRP, while the Ryzen 9 5900X debuted at $549. At current prices ($5 vs $350), the Celeron 450 is $345 cheaper. In terms of value (PassMark points per dollar), the Celeron 450 delivers 99.0 pts/$ vs 111.3 pts/$ for the Ryzen 9 5900X — making the Ryzen 9 5900X the 11.7% better value option.
| Feature | Celeron 450 | Ryzen 9 5900X |
|---|---|---|
| MSRP | $53-90% | $549 |
| Avg Price (30d) | $5-99% | $350 |
| Performance per Dollar | 99.0 | 111.3+12% |
| Release Date | 2008 | 2020 |
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