Athlon II X2 265 vs Pentium Gold 6405U
Athlon II X2 265
Pentium Gold 6405U
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 Pentium Gold 6405U is on rank 770, so the Pentium Gold 6405U 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 Pentium Gold 6405U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X2 265 | Pentium Gold 6405U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Regor (2009−2013) / 45 nm) | ✨ Modern (Comet Lake-U (2019−2020) / 14 nm) |
💎 Value Proposition
| Insight | Athlon II X2 265 | Pentium Gold 6405U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ 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 Athlon II X2 265 and Pentium Gold 6405U
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.
Pentium Gold 6405U
The Pentium Gold 6405U is manufactured by Intel. It was released in 31 October 2019 (6 years ago). It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 4 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 2 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 1,320 points. Launch price was $161.
Processing Power
The Athlon II X2 265 packs 2 cores / 2 threads, matching the Pentium Gold 6405U's 2 cores. Boost clocks reach 3.3 GHz on the Athlon II X2 265 versus 2.4 GHz on the Pentium Gold 6405U — a 31.6% clock advantage for the Athlon II X2 265 (base: 3.3 GHz vs 2.4 GHz). The Athlon II X2 265 uses the Regor (2009−2013) architecture (45 nm), while the Pentium Gold 6405U uses Comet Lake-U (2019−2020) (14 nm). In PassMark, the Athlon II X2 265 scores 1,324 against the Pentium Gold 6405U's 1,320 — a 0.3% lead for the Athlon II X2 265. L3 cache: 0 kB on the Athlon II X2 265 vs 2 MB on the Pentium Gold 6405U.
| Feature | Athlon II X2 265 | Pentium Gold 6405U |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 3.3 GHz+38% | 2.4 GHz |
| Base Clock | 3.3 GHz+38% | 2.4 GHz |
| L3 Cache | 0 kB | 2 MB |
| L2 Cache | 1 MB | 1 MB |
| Process | 45 nm | 14 nm-69% |
| Architecture | Regor (2009−2013) | Comet Lake-U (2019−2020) |
| PassMark | 1,324 | 1,320 |
| Geekbench 6 Single | 275 | — |
| Geekbench 6 Multi | 520 | — |
Memory & Platform
The Athlon II X2 265 uses the AM3 socket (PCIe 2.0), while the Pentium Gold 6405U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Athlon II X2 265 | Pentium Gold 6405U |
|---|---|---|
| Socket | AM3 | FCBGA1528 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: AMD-V (Athlon II X2 265) / not specified (Pentium Gold 6405U). Primary use case: Athlon II X2 265 targets Legacy Desktop. Direct competitor: Athlon II X2 265 rivals Pentium E6700.
| Feature | Athlon II X2 265 | Pentium Gold 6405U |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Legacy Desktop | — |
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