Athlon II X3 450 vs Ryzen 7 5800X
Athlon II X3 450
Popular choices:
Ryzen 7 5800X
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 Athlon II X3 450 is positioned at rank #761 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 Athlon II X3 450
Performance Per Dollar Ryzen 7 5800X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X3 450 | Ryzen 7 5800X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($15) | ⚠️ Higher cost ($180) |
| Longevity | 🛑 Legacy (Rana (2009−2011) / 45 nm) | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Athlon II X3 450 | Ryzen 7 5800X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+24%) |
| Upfront Cost | ✅ More affordable ($15) | ⚠️ Higher cost ($180) |
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 II X3 450 and Ryzen 7 5800X
Athlon II X3 450
The Athlon II X3 450 is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Rana (2009−2011) architecture. It features 3 cores and 3 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 1,865 points. Launch price was $45.
Ryzen 7 5800X
The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 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. Passmark benchmark score: 27,712 points. Launch price was $449.
Processing Power
The Athlon II X3 450 packs 3 cores / 3 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Ryzen 7 5800X has 5 more cores. Boost clocks reach 3.2 GHz on the Athlon II X3 450 versus 4.7 GHz on the Ryzen 7 5800X — a 38% clock advantage for the Ryzen 7 5800X (base: 3.2 GHz vs 3.8 GHz). The Athlon II X3 450 uses the Rana (2009−2011) architecture (45 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Athlon II X3 450 scores 1,865 against the Ryzen 7 5800X's 27,712 — a 174.8% lead for the Ryzen 7 5800X. L3 cache: 0 kB on the Athlon II X3 450 vs 32 MB on the Ryzen 7 5800X.
| Feature | Athlon II X3 450 | Ryzen 7 5800X |
|---|---|---|
| Cores / Threads | 3 / 3 | 8 / 16+167% |
| Boost Clock | 3.2 GHz | 4.7 GHz+47% |
| Base Clock | 3.2 GHz | 3.8 GHz+19% |
| L3 Cache | 0 kB | 32 MB |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 45 nm | 7 nm, 12 nm-84% |
| Architecture | Rana (2009−2011) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 1,865 | 27,712+1386% |
| Geekbench 6 Single | 380 | — |
| Geekbench 6 Multi | 980 | — |
Memory & Platform
The Athlon II X3 450 uses the AM3 socket (PCIe 2.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Athlon II X3 450 versus DDR4-3200 on the Ryzen 7 5800X — the Ryzen 7 5800X supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 5800X supports up to 128 GB of RAM compared to 32 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Athlon II X3 450) vs 24 (Ryzen 7 5800X) — the Ryzen 7 5800X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 760G,780G,790GX,880G,970,990FX (Athlon II X3 450) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X).
| Feature | Athlon II X3 450 | Ryzen 7 5800X |
|---|---|---|
| Socket | AM3 | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | DDR3-1333 | DDR4-3200+33% |
| Max RAM Capacity | 32 GB | 128 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 16 | 24+50% |
Advanced Features
Only the Ryzen 7 5800X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AMD-V virtualization. Primary use case: Athlon II X3 450 targets Desktop, Ryzen 7 5800X targets Desktop.
| Feature | Athlon II X3 450 | Ryzen 7 5800X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | AMD-V | AMD-V |
| Target Use | Desktop | Desktop |
Value Analysis
The Athlon II X3 450 launched at $87 MSRP, while the Ryzen 7 5800X debuted at $449. At current prices ($15 vs $180), the Athlon II X3 450 is $165 cheaper. In terms of value (PassMark points per dollar), the Athlon II X3 450 delivers 124.3 pts/$ vs 154.0 pts/$ for the Ryzen 7 5800X — making the Ryzen 7 5800X the 21.3% better value option.
| Feature | Athlon II X3 450 | Ryzen 7 5800X |
|---|---|---|
| MSRP | $87-81% | $449 |
| Avg Price (30d) | $15-92% | $180 |
| Performance per Dollar | 124.3 | 154.0+24% |
| Release Date | 2010 | 2020 |
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