Core i3-380UM vs A6-6400K
Core i3-380UM
A6-6400K
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 Core i3-380UM is positioned at rank 225 and the A6-6400K is on rank 688, so the Core i3-380UM offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i3-380UM
Performance Per Dollar A6-6400K
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-380UM | A6-6400K |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Richland (2013−2014) / 32 nm) |
💎 Value Proposition
| Insight | Core i3-380UM | A6-6400K |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Core i3-380UM and A6-6400K
Core i3-380UM
The Core i3-380UM is manufactured by Intel. It was released in 1 October 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.33 GHz, with boost up to 0.03 GHz. L3 cache: 3 MB. L2 cache: 512 kB. Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3. Passmark benchmark score: 1,502 points. Launch price was $69.
A6-6400K
The A6-6400K is manufactured by AMD. It was released in 2014-01-01. It is based on the Richland (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 3.9 GHz, with boost up to 4.1 GHz. L3 cache: 0 kB. L2 cache: 1024 kB. Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,511 points. Launch price was $70.
Processing Power
The Core i3-380UM packs 2 cores / 4 threads, matching the A6-6400K's 2 cores. Boost clocks reach 0.03 GHz on the Core i3-380UM versus 4.1 GHz on the A6-6400K — a 197.1% clock advantage for the A6-6400K (base: 1.33 GHz vs 3.9 GHz). The Core i3-380UM uses the Arrandale (2010−2011) architecture (32 nm), while the A6-6400K uses Richland (2013−2014) (32 nm). In PassMark, the Core i3-380UM scores 1,502 against the A6-6400K's 1,511 — a 0.6% lead for the A6-6400K. L3 cache: 3 MB on the Core i3-380UM vs 0 kB on the A6-6400K.
| Feature | Core i3-380UM | A6-6400K |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | 0.03 GHz | 4.1 GHz+13567% |
| Base Clock | 1.33 GHz | 3.9 GHz+193% |
| L3 Cache | 3 MB | 0 kB |
| L2 Cache | 512 kB | 1024 kB+100% |
| Process | 32 nm | 32 nm |
| Architecture | Arrandale (2010−2011) | Richland (2013−2014) |
| PassMark | 1,502 | 1,511 |
| Geekbench 6 Single | 199 | — |
| Geekbench 6 Multi | 451 | — |
Memory & Platform
The Core i3-380UM uses the BGA1288 socket (PCIe 2.0), while the A6-6400K uses FM2 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-800 on the Core i3-380UM versus 1866 on the A6-6400K — the A6-6400K supports 199.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The A6-6400K supports up to 32 of RAM compared to 8 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: HM55,HM57,QM57 (Core i3-380UM) and FM2 (A6-6400K).
| Feature | Core i3-380UM | A6-6400K |
|---|---|---|
| Socket | BGA1288 | FM2 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-800 | 1866+62100% |
| Max RAM Capacity | 8 GB+26214300% | 32 |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Only the A6-6400K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: No (Core i3-380UM) vs true (A6-6400K). Both include integrated graphics — Intel HD Graphics (Core i3-380UM) and Radeon HD 8470D (A6-6400K) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-380UM targets Budget. Direct competitor: Core i3-380UM rivals Athlon Silver 3050U; A6-6400K rivals Pentium G3258.
| Feature | Core i3-380UM | A6-6400K |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel HD Graphics | Radeon HD 8470D |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | No | true |
| Target Use | Budget | — |
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