
Ryzen 7 5800X vs Athlon PRO 300U

Ryzen 7 5800X

Athlon PRO 300U
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Ryzen 7 5800X
Performance Per Dollar Athlon PRO 300U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 5800X | Athlon PRO 300U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($180) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) | ✨ Modern (Raven Ridge 2 (2019) / 14 nm) |
💎 Value Proposition
| Insight | Ryzen 7 5800X | Athlon PRO 300U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($180) | ✅ 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 Ryzen 7 5800X and Athlon PRO 300U

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.

Athlon PRO 300U
The Athlon PRO 300U is manufactured by AMD. It was released in 2009-01-01. It is based on the Raven Ridge 2 (2019) architecture. It features 2 cores and 4 threads. Base frequency is 2.4 GHz, with boost up to 3.3 GHz. L3 cache: 4 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 4,080 points. Launch price was $149.
Processing Power
The Ryzen 7 5800X packs 8 cores / 16 threads, while the Athlon PRO 300U offers 2 cores / 4 threads — the Ryzen 7 5800X has 6 more cores. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 3.3 GHz on the Athlon PRO 300U — a 35% clock advantage for the Ryzen 7 5800X (base: 3.8 GHz vs 2.4 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020−2022) architecture (7 nm, 12 nm), while the Athlon PRO 300U uses Raven Ridge 2 (2019) (14 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Athlon PRO 300U's 4,080 — a 148.7% lead for the Ryzen 7 5800X. L3 cache: 32 MB on the Ryzen 7 5800X vs 4 MB (total) on the Athlon PRO 300U.
| Feature | Ryzen 7 5800X | Athlon PRO 300U |
|---|---|---|
| Cores / Threads | 8 / 16+300% | 2 / 4 |
| Boost Clock | 4.7 GHz+42% | 3.3 GHz |
| Base Clock | 3.8 GHz+58% | 2.4 GHz |
| L3 Cache | 32 MB+700% | 4 MB (total) |
| L2 Cache | 512K (per core) | 512K (per core) |
| Process | 7 nm, 12 nm-50% | 14 nm |
| Architecture | Vermeer (Zen 3) (2020−2022) | Raven Ridge 2 (2019) |
| PassMark | 27,712+579% | 4,080 |
Memory & Platform
The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Athlon PRO 300U uses FP5 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. 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: 24 (Ryzen 7 5800X) vs 8 (Athlon PRO 300U) — the Ryzen 7 5800X offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X) and AMD FP5 (Athlon PRO 300U).
| Feature | Ryzen 7 5800X | Athlon PRO 300U |
|---|---|---|
| Socket | AM4 | FP5 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | DDR4-3200 | DDR4-2400 |
| Max RAM Capacity | 128 GB+300% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 24+200% | 8 |
Advanced Features
Virtualization: AMD-V (Ryzen 7 5800X) / not specified (Athlon PRO 300U). The Athlon PRO 300U includes integrated graphics (AMD Radeon Vega 3), while the Ryzen 7 5800X requires a dedicated GPU. Primary use case: Ryzen 7 5800X targets Desktop.
| Feature | Ryzen 7 5800X | Athlon PRO 300U |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | AMD Radeon Vega 3 |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Desktop | — |
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