
Athlon II X2 265

Athlon II X3 405e
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 X2 265 is positioned at rank 884 and the Athlon II X3 405e is on rank 935, so the Athlon II X2 265 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 X2 265
Performance Per Dollar Athlon II X3 405e
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X2 265 | Athlon II X3 405e |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($10) |
| Longevity | 🛑 Legacy (Regor (2009−2013) / 45 nm) | 🛑 Legacy (Rana (2009−2011) / 45 nm) |
💎 Value Proposition
| Insight | Athlon II X2 265 | Athlon II X3 405e |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+51%) |
| 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 X2 265 and Athlon II X3 405e

Athlon II X2 265
The Athlon II X2 265 is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Regor (2009−2013) architecture. It features 2 cores and 2 threads. Base frequency is 3.3 GHz, with boost up to 3.3 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 1,324 points. Launch price was $83.

Athlon II X3 405e
The Athlon II X3 405e is manufactured by AMD. It was released in 20 October 2009 (16 years ago). It is based on the Rana (2009−2011) architecture. It features 3 cores and 3 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 1,331 points. Launch price was $80.
Processing Power
The Athlon II X2 265 packs 2 cores / 2 threads, while the Athlon II X3 405e offers 3 cores / 3 threads — the Athlon II X3 405e has 1 more core. Boost clocks reach 3.3 GHz on the Athlon II X2 265 versus 2.3 GHz on the Athlon II X3 405e — a 35.7% clock advantage for the Athlon II X2 265 (base: 3.3 GHz vs 2.3 GHz). The Athlon II X2 265 uses the Regor (2009−2013) architecture (45 nm), while the Athlon II X3 405e uses Rana (2009−2011) (45 nm). In PassMark, the Athlon II X2 265 scores 1,324 against the Athlon II X3 405e's 1,331 — a 0.5% lead for the Athlon II X3 405e. Both processors carry 0 kB of L3 cache.
| Feature | Athlon II X2 265 | Athlon II X3 405e |
|---|---|---|
| Cores / Threads | 2 / 2 | 3 / 3+50% |
| Boost Clock | 3.3 GHz+43% | 2.3 GHz |
| Base Clock | 3.3 GHz+43% | 2.3 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 1 MB+100% | 512 kB (per core) |
| Process | 45 nm | 45 nm |
| Architecture | Regor (2009−2013) | Rana (2009−2011) |
| PassMark | 1,324 | 1,331 |
| Geekbench 6 Single | 275 | — |
| Geekbench 6 Multi | 520 | — |
Memory & Platform
Both processors use the AM3 socket with PCIe 2.0. Both support up to DDR3-1333 memory speed. The Athlon II X3 405e supports up to 32 GB of RAM compared to 16 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: 760G,780G,785G,790GX,870,880G,890GX,890FX (Athlon II X2 265) and AMD AM3 (Athlon II X3 405e).
| Feature | Athlon II X2 265 | Athlon II X3 405e |
|---|---|---|
| Socket | AM3 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | DDR3-1333 |
| Max RAM Capacity | 16 GB | 32 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 0 | 0 |
Advanced Features
Virtualization: AMD-V (Athlon II X2 265) / not specified (Athlon II X3 405e). Primary use case: Athlon II X2 265 targets Legacy Desktop. Direct competitor: Athlon II X2 265 rivals Pentium E6700.
| Feature | Athlon II X2 265 | Athlon II X3 405e |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Legacy Desktop | — |
Value Analysis
The Athlon II X2 265 launched at $83 MSRP, while the Athlon II X3 405e debuted at $100. At current prices ($15 vs $10), the Athlon II X3 405e is $5 cheaper. In terms of value (PassMark points per dollar), the Athlon II X2 265 delivers 88.3 pts/$ vs 133.1 pts/$ for the Athlon II X3 405e — making the Athlon II X3 405e the 40.5% better value option.
| Feature | Athlon II X2 265 | Athlon II X3 405e |
|---|---|---|
| MSRP | $83-17% | $100 |
| Avg Price (30d) | $15 | $10-33% |
| Performance per Dollar | 88.3 | 133.1+51% |
| Release Date | 2010 | 2009 |
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