Athlon II X3 420e vs Ryzen 7 3700X
Athlon II X3 420e
Ryzen 7 3700X
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. The Athlon II X3 420e is positioned at rank #906 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Athlon II X3 420e
Performance Per Dollar Ryzen 7 3700X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X3 420e | Ryzen 7 3700X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($15) | ⚠️ Higher cost ($140) |
| Longevity | 🛑 Legacy (Rana (2009−2011) / 45 nm) | ✨ Modern (Matisse (Zen 2) (2019−2020) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Athlon II X3 420e | Ryzen 7 3700X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+54%) |
| Upfront Cost | ✅ More affordable ($15) | ⚠️ Higher cost ($140) |
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 X3 420e and Ryzen 7 3700X
Athlon II X3 420e
The Athlon II X3 420e is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Rana (2009−2011) architecture. It features 3 cores and 3 threads. Base frequency is 2.6 GHz, with boost up to 2.6 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: 1,557 points. Launch price was $116.
Ryzen 7 3700X
The Ryzen 7 3700X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 22,430 points. Launch price was $329.
Processing Power
The Athlon II X3 420e packs 3 cores / 3 threads, while the Ryzen 7 3700X offers 8 cores / 16 threads — the Ryzen 7 3700X has 5 more cores. Boost clocks reach 2.6 GHz on the Athlon II X3 420e versus 4.4 GHz on the Ryzen 7 3700X — a 51.4% clock advantage for the Ryzen 7 3700X (base: 2.6 GHz vs 3.6 GHz). The Athlon II X3 420e uses the Rana (2009−2011) architecture (45 nm), while the Ryzen 7 3700X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Athlon II X3 420e scores 1,557 against the Ryzen 7 3700X's 22,430 — a 174% lead for the Ryzen 7 3700X. L3 cache: 0 kB on the Athlon II X3 420e vs 32 MB on the Ryzen 7 3700X.
| Feature | Athlon II X3 420e | Ryzen 7 3700X |
|---|---|---|
| Cores / Threads | 3 / 3 | 8 / 16+167% |
| Boost Clock | 2.6 GHz | 4.4 GHz+69% |
| Base Clock | 2.6 GHz | 3.6 GHz+38% |
| L3 Cache | 0 kB | 32 MB |
| L2 Cache | 512 kB (per core) | 512K (per core) |
| Process | 45 nm | 7 nm, 12 nm-84% |
| Architecture | Rana (2009−2011) | Matisse (Zen 2) (2019−2020) |
| PassMark | 1,557 | 22,430+1341% |
| Geekbench 6 Single | 314 | — |
| Geekbench 6 Multi | 880 | — |
Memory & Platform
The Athlon II X3 420e uses the AM3 socket (PCIe 2.0), while the Ryzen 7 3700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Athlon II X3 420e versus DDR4-3200 on the Ryzen 7 3700X — the Ryzen 7 3700X supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 3700X supports up to 128 GB of RAM compared to 16 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Athlon II X3 420e) vs 24 (Ryzen 7 3700X) — the Ryzen 7 3700X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 760G,785G,880G (Athlon II X3 420e) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 3700X).
| Feature | Athlon II X3 420e | Ryzen 7 3700X |
|---|---|---|
| Socket | AM3 | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | DDR3-1333 | DDR4-3200+33% |
| Max RAM Capacity | 16 GB | 128 GB+700% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 16 | 24+50% |
Advanced Features
Virtualization: AMD-V (Athlon II X3 420e) / not specified (Ryzen 7 3700X). Primary use case: Athlon II X3 420e targets Legacy Desktop. Direct competitor: Athlon II X3 420e rivals Athlon II X3 415e.
| Feature | Athlon II X3 420e | Ryzen 7 3700X |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Legacy Desktop | — |
Value Analysis
The Athlon II X3 420e launched at $107 MSRP, while the Ryzen 7 3700X debuted at $329. At current prices ($15 vs $140), the Athlon II X3 420e is $125 cheaper. In terms of value (PassMark points per dollar), the Athlon II X3 420e delivers 103.8 pts/$ vs 160.2 pts/$ for the Ryzen 7 3700X — making the Ryzen 7 3700X the 42.7% better value option.
| Feature | Athlon II X3 420e | Ryzen 7 3700X |
|---|---|---|
| MSRP | $107-67% | $329 |
| Avg Price (30d) | $15-89% | $140 |
| Performance per Dollar | 103.8 | 160.2+54% |
| Release Date | 2010 | 2019 |
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