Athlon II X4 631 vs Celeron M 900
Athlon II X4 631
Celeron M 900
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 Athlon II X4 631 is positioned at rank 651 and the Celeron M 900 is on rank 797, so the Athlon II X4 631 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon II X4 631
Performance Per Dollar Celeron M 900
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X4 631 | Celeron M 900 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($10) |
| Longevity | 🛑 Legacy (Llano (2011−2012) / 32 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Athlon II X4 631 | Celeron M 900 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+49%) |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ More affordable ($10) |
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 X4 631 and Celeron M 900
Athlon II X4 631
The Athlon II X4 631 is manufactured by AMD. It was released in 2009-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM1. Thermal design power (TDP): 100 Watt. Memory support: DDR3. Passmark benchmark score: 2,118 points. Launch price was $149.
Celeron M 900
The Celeron M 900 is manufactured by Intel. It was released in 1 April 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 2,101 points. Launch price was $70.
Processing Power
The Athlon II X4 631 packs 4 cores / 4 threads, while the Celeron M 900 offers 1 cores / 1 threads — the Athlon II X4 631 has 3 more cores. Boost clocks reach 2.6 GHz on the Athlon II X4 631 versus 2.2 GHz on the Celeron M 900 — a 16.7% clock advantage for the Athlon II X4 631. The Athlon II X4 631 uses the Llano (2011−2012) architecture (32 nm), while the Celeron M 900 uses Penryn (2008−2011) (45 nm). In PassMark, the Athlon II X4 631 scores 2,118 against the Celeron M 900's 2,101 — a 0.8% lead for the Athlon II X4 631.
| Feature | Athlon II X4 631 | Celeron M 900 |
|---|---|---|
| Cores / Threads | 4 / 4+300% | 1 / 1 |
| Boost Clock | 2.6 GHz+18% | 2.2 GHz |
| Base Clock | 2.6 GHz | — |
| L3 Cache | 0 kB | — |
| L2 Cache | 1 MB (per core) | 1 MB |
| Process | 32 nm-29% | 45 nm |
| Architecture | Llano (2011−2012) | Penryn (2008−2011) |
| PassMark | 2,118 | 2,101 |
Memory & Platform
The Athlon II X4 631 uses the FM1 socket (PCIe 2.0), while the Celeron M 900 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Athlon II X4 631 | Celeron M 900 |
|---|---|---|
| Socket | FM1 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3-1866 | — |
| Max RAM Capacity | 64 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Value Analysis
The Athlon II X4 631 launched at $80 MSRP, while the Celeron M 900 debuted at $86. At current prices ($15 vs $10), the Celeron M 900 is $5 cheaper. In terms of value (PassMark points per dollar), the Athlon II X4 631 delivers 141.2 pts/$ vs 210.1 pts/$ for the Celeron M 900 — making the Celeron M 900 the 39.2% better value option.
| Feature | Athlon II X4 631 | Celeron M 900 |
|---|---|---|
| MSRP | $80-7% | $86 |
| Avg Price (30d) | $15 | $10-33% |
| Performance per Dollar | 141.2 | 210.1+49% |
| Release Date | 2011 | 2009 |
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