Mobile Athlon 64 2800+ vs Celeron 420
Mobile Athlon 64 2800+
Celeron 420
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 Mobile Athlon 64 2800+ is positioned at rank 1157 and the Celeron 420 is on rank 982, so the Celeron 420 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Mobile Athlon 64 2800+
Performance Per Dollar Celeron 420
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Mobile Athlon 64 2800+ | Celeron 420 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Oakville (2003−2004) / Standard Node) | 🛑 Legacy (Conroe-L (2007−2008) / 65 nm) |
💎 Value Proposition
| Insight | Mobile Athlon 64 2800+ | Celeron 420 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
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 Celeron 420
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.
Celeron 420
The Celeron 420 is manufactured by Intel. It was released in 3 June 2007 (18 years ago). It is based on the Conroe-L (2007−2008) architecture. It features 1 cores and 1 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 0 kB. L2 cache: 512 kB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 35 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 425 points. Launch price was $23.
Processing Power
Both the Mobile Athlon 64 2800+ and Celeron 420 share an identical 1-core/1-thread configuration. Boost clocks reach 1.8 GHz on the Mobile Athlon 64 2800+ versus 1.6 GHz on the Celeron 420 — a 11.8% clock advantage for the Mobile Athlon 64 2800+. The Mobile Athlon 64 2800+ uses the Oakville (2003−2004) architecture, while the Celeron 420 uses Conroe-L (2007−2008) (65 nm). In PassMark, the Mobile Athlon 64 2800+ scores 420 against the Celeron 420's 425 — a 1.2% lead for the Celeron 420.
| Feature | Mobile Athlon 64 2800+ | Celeron 420 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.8 GHz+12% | 1.6 GHz |
| Base Clock | — | 1.6 GHz |
| L3 Cache | — | 0 kB |
| L2 Cache | 512K | 512 kB (total) |
| Process | — | 65 nm |
| Architecture | Oakville (2003−2004) | Conroe-L (2007−2008) |
| PassMark | 420 | 425+1% |
Memory & Platform
The Mobile Athlon 64 2800+ uses the 754 socket (PCIe 1.1), while the Celeron 420 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 400 on the Mobile Athlon 64 2800+ versus DDR2-800 on the Celeron 420 — the Mobile Athlon 64 2800+ supports 198% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 420 supports up to 16 GB of RAM compared to 2 — 155.6% more capacity for professional workloads. Memory channels: 1 (Mobile Athlon 64 2800+) vs 2 (Celeron 420). Both provide 0 PCIe lanes. Chipset compatibility: 754 (Mobile Athlon 64 2800+) and 945,G31,G41 (Celeron 420).
| Feature | Mobile Athlon 64 2800+ | Celeron 420 |
|---|---|---|
| Socket | 754 | LGA775 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | 400+19900% | DDR2-800 |
| Max RAM Capacity | 2 | 16 GB+838860700% |
| RAM Channels | 1 | 2+100% |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Neither processor supports overclocking. Virtualization support: false (Mobile Athlon 64 2800+) vs No (Celeron 420). Primary use case: Celeron 420 targets Budget. Direct competitor: Mobile Athlon 64 2800+ rivals Pentium M 725; Celeron 420 rivals Pentium 4 2.80.
| Feature | Mobile Athlon 64 2800+ | Celeron 420 |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | false | No |
| Target Use | — | Budget |
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