Mobile Athlon 64 2800+ vs Ryzen 9 5900X
Mobile Athlon 64 2800+
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 Mobile Athlon 64 2800+ is positioned at rank #1157 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 Mobile Athlon 64 2800+
Performance Per Dollar Ryzen 9 5900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Mobile Athlon 64 2800+ | Ryzen 9 5900X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($350) |
| Longevity | 🛑 Legacy (Oakville (2003−2004) / Standard Node) | ✨ Modern (Vermeer (Zen3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Mobile Athlon 64 2800+ | Ryzen 9 5900X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ 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 Mobile Athlon 64 2800+ and Ryzen 9 5900X
Mobile Athlon 64 2800+
The Mobile Athlon 64 2800+ is manufactured by AMD. It was released in Agosto 2004 (21 years ago). It is based on the Oakville (2003−2004) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L2 cache: 512K. Socket: 754. Thermal design power (TDP): 512 kB. Memory support: DDR1. Passmark benchmark score: 420 points. Launch price was $69.
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 Mobile Athlon 64 2800+ 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 1.8 GHz on the Mobile Athlon 64 2800+ versus 4.8 GHz on the Ryzen 9 5900X — a 90.9% clock advantage for the Ryzen 9 5900X. The Mobile Athlon 64 2800+ uses the Oakville (2003−2004) architecture, while the Ryzen 9 5900X uses Vermeer (Zen3) (2020−2022) (7 nm, 12 nm). In PassMark, the Mobile Athlon 64 2800+ scores 420 against the Ryzen 9 5900X's 38,955 — a 195.7% lead for the Ryzen 9 5900X.
| Feature | Mobile Athlon 64 2800+ | Ryzen 9 5900X |
|---|---|---|
| Cores / Threads | 1 / 1 | 12 / 24+1100% |
| Boost Clock | 1.8 GHz | 4.8 GHz+167% |
| Base Clock | — | 3.7 GHz |
| L3 Cache | — | 64 MB |
| L2 Cache | 512K | 512K (per core) |
| Process | — | 7 nm, 12 nm |
| Architecture | Oakville (2003−2004) | Vermeer (Zen3) (2020−2022) |
| PassMark | 420 | 38,955+9175% |
| Cinebench R23 Multi | — | 21,000 |
| Geekbench 6 Single | — | 2,174 |
| Geekbench 6 Multi | — | 11,888 |
Memory & Platform
The Mobile Athlon 64 2800+ uses the 754 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 400 on the Mobile Athlon 64 2800+ versus DDR4-3200 on the Ryzen 9 5900X — the Mobile Athlon 64 2800+ supports 196% 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 2 — 193.8% more capacity for professional workloads. Memory channels: 1 (Mobile Athlon 64 2800+) vs 2 (Ryzen 9 5900X). PCIe lanes: 0 (Mobile Athlon 64 2800+) vs 24 (Ryzen 9 5900X) — the Ryzen 9 5900X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 754 (Mobile Athlon 64 2800+) and A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X).
| Feature | Mobile Athlon 64 2800+ | Ryzen 9 5900X |
|---|---|---|
| Socket | 754 | AM4 |
| PCIe Generation | PCIe 1.1 | PCIe 4.0+264% |
| Max RAM Speed | 400+9900% | DDR4-3200 |
| Max RAM Capacity | 2 | 128 GB+6710886300% |
| RAM Channels | 1 | 2+100% |
| 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: false (Mobile Athlon 64 2800+) vs AMD-V (Ryzen 9 5900X). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Mobile Athlon 64 2800+ rivals Pentium M 725; Ryzen 9 5900X rivals Core i9-12900K.
| Feature | Mobile Athlon 64 2800+ | Ryzen 9 5900X |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | false | AMD-V |
| Target Use | — | Workstation |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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