Athlon II X4 638 vs Core i3-6006U
Athlon II X4 638
Core i3-6006U
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 638 is positioned at rank 1040 and the Core i3-6006U is on rank 370, so the Core i3-6006U 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 638
Performance Per Dollar Core i3-6006U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Athlon II X4 638 | Core i3-6006U |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($280) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Llano (2011−2012) / 32 nm) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Athlon II X4 638 | Core i3-6006U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($280) | ✅ 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 X4 638 and Core i3-6006U
Athlon II X4 638
The Athlon II X4 638 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 2.7 GHz, with boost up to 2.7 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM1. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 2,260 points. Launch price was $149.
Core i3-6006U
The Core i3-6006U is manufactured by Intel. It was released in 10 November 2016 (9 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 3 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 2,273 points. Launch price was $281.
Processing Power
The Athlon II X4 638 packs 4 cores / 4 threads, while the Core i3-6006U offers 2 cores / 4 threads — the Athlon II X4 638 has 2 more cores. Boost clocks reach 2.7 GHz on the Athlon II X4 638 versus 2 GHz on the Core i3-6006U — a 29.8% clock advantage for the Athlon II X4 638 (base: 2.7 GHz vs 2 GHz). The Athlon II X4 638 uses the Llano (2011−2012) architecture (32 nm), while the Core i3-6006U uses Skylake (2015−2016) (14 nm). In PassMark, the Athlon II X4 638 scores 2,260 against the Core i3-6006U's 2,273 — a 0.6% lead for the Core i3-6006U. L3 cache: 0 kB on the Athlon II X4 638 vs 3 MB on the Core i3-6006U.
| Feature | Athlon II X4 638 | Core i3-6006U |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 4 |
| Boost Clock | 2.7 GHz+35% | 2 GHz |
| Base Clock | 2.7 GHz+35% | 2 GHz |
| L3 Cache | 0 kB | 3 MB |
| L2 Cache | 1 MB (per core)+100% | 512 kB |
| Process | 32 nm | 14 nm-56% |
| Architecture | Llano (2011−2012) | Skylake (2015−2016) |
| PassMark | 2,260 | 2,273 |
| Cinebench R23 Multi | — | 2,200 |
| Geekbench 6 Single | — | 630 |
| Geekbench 6 Multi | — | 1,313 |
Memory & Platform
The Athlon II X4 638 uses the FM1 socket (PCIe 2.0), while the Core i3-6006U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1866 on the Athlon II X4 638 versus DDR4-2133 on the Core i3-6006U — the Core i3-6006U supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon II X4 638 supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Athlon II X4 638) vs 12 (Core i3-6006U) — the Athlon II X4 638 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FM1 (Athlon II X4 638) and Skylake-U (Core i3-6006U).
| Feature | Athlon II X4 638 | Core i3-6006U |
|---|---|---|
| Socket | FM1 | BGA1356 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1866 | DDR4-2133+33% |
| Max RAM Capacity | 64 GB+100% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16+33% | 12 |
Advanced Features
Virtualization: not specified (Athlon II X4 638) / Yes (Core i3-6006U). The Core i3-6006U includes integrated graphics (HD Graphics 520), while the Athlon II X4 638 requires a dedicated GPU. Primary use case: Core i3-6006U targets Mobile.
| Feature | Athlon II X4 638 | Core i3-6006U |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | HD Graphics 520 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | Yes |
| Target Use | — | Mobile |
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