Athlon II X4 645 vs 3020e
Athlon II X4 645
3020e
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 645 is positioned at rank 819 and the 3020e is on rank 805, so the 3020e 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 645
Performance Per Dollar 3020e
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X4 645 | 3020e |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($20) | ⚠️ Higher cost ($25) |
| Longevity | 🛑 Legacy (Propus (2009−2011) / 45 nm) | ✨ Modern (Dali (Zen) (2020) / 14 nm) |
💎 Value Proposition
| Insight | Athlon II X4 645 | 3020e |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+23%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($20) | ⚠️ Higher cost ($25) |
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 645 and 3020e
Athlon II X4 645
The Athlon II X4 645 is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.1 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,375 points. Launch price was $80.
3020e
The 3020e is manufactured by AMD. It was released in 2014-01-01. It is based on the Dali (Zen) (2020) architecture. It features 2 cores and 2 threads. Base frequency is 1.2 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: FT5. Thermal design power (TDP): 1 MB + 4 MB. Memory support: DDR4. Passmark benchmark score: 2,406 points. Launch price was $50.
Processing Power
The Athlon II X4 645 packs 4 cores / 4 threads, while the 3020e offers 2 cores / 2 threads — the Athlon II X4 645 has 2 more cores. Boost clocks reach 3.1 GHz on the Athlon II X4 645 versus 2.6 GHz on the 3020e — a 17.5% clock advantage for the Athlon II X4 645 (base: 3.1 GHz vs 1.2 GHz). The Athlon II X4 645 uses the Propus (2009−2011) architecture (45 nm), while the 3020e uses Dali (Zen) (2020) (14 nm). In PassMark, the Athlon II X4 645 scores 2,375 against the 3020e's 2,406 — a 1.3% lead for the 3020e. Cinebench R23 multi-core: 1,374 vs 480 (96.4% advantage for the Athlon II X4 645). Geekbench 6 single-core — the metric most relevant to gaming — records 399 vs 660, a 49.3% lead for the 3020e that directly translates to higher frame rates. Multi-core Geekbench: 1,374 vs 1,100 (22.2% advantage for the Athlon II X4 645). L3 cache: 0 kB on the Athlon II X4 645 vs 4 MB on the 3020e.
| Feature | Athlon II X4 645 | 3020e |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 3.1 GHz+19% | 2.6 GHz |
| Base Clock | 3.1 GHz+158% | 1.2 GHz |
| L3 Cache | 0 kB | 4 MB |
| L2 Cache | 512 kB (per core) | 1 MB+100% |
| Process | 45 nm | 14 nm-69% |
| Architecture | Propus (2009−2011) | Dali (Zen) (2020) |
| PassMark | 2,375 | 2,406+1% |
| Cinebench R23 Multi | 1,374+186% | 480 |
| Geekbench 6 Single | 399 | 660+65% |
| Geekbench 6 Multi | 1,374+25% | 1,100 |
Memory & Platform
The Athlon II X4 645 uses the AM3 socket (PCIe 2.0), while the 3020e uses FT5 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Athlon II X4 645 versus DDR4-2400 on the 3020e — the 3020e supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The 3020e 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. PCIe lanes: 16 (Athlon II X4 645) vs 8 (3020e) — the Athlon II X4 645 offers 8 more lanes for additional GPUs or NVMe drives.
| Feature | Athlon II X4 645 | 3020e |
|---|---|---|
| Socket | AM3 | FT5 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1333 | DDR4-2400+33% |
| Max RAM Capacity | 16 GB | 32 GB+100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 16+100% | 8 |
Advanced Features
Virtualization support: Yes (Athlon II X4 645) vs AMD-V (3020e). The 3020e includes integrated graphics (Radeon Graphics (Vega 3)), while the Athlon II X4 645 requires a dedicated GPU. Primary use case: Athlon II X4 645 targets Desktop, 3020e targets Entry Level Laptop. Direct competitor: 3020e rivals Celeron N4020.
| Feature | Athlon II X4 645 | 3020e |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon Graphics (Vega 3) |
| Unlocked | — | No |
| AVX-512 | No | No |
| Virtualization | Yes | AMD-V |
| Target Use | Desktop | Entry Level Laptop |
Value Analysis
The Athlon II X4 645 launched at $126 MSRP, while the 3020e debuted at $100. At current prices ($20 vs $25), the Athlon II X4 645 is $5 cheaper. In terms of value (PassMark points per dollar), the Athlon II X4 645 delivers 118.8 pts/$ vs 96.2 pts/$ for the 3020e — making the Athlon II X4 645 the 20.9% better value option.
| Feature | Athlon II X4 645 | 3020e |
|---|---|---|
| MSRP | $126 | $100-21% |
| Avg Price (30d) | $20-20% | $25 |
| Performance per Dollar | 118.8+23% | 96.2 |
| Release Date | 2010 | 2020 |
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