Atom C3808 vs Core i7-3920XM
Atom C3808
Core i7-3920XM
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 Atom C3808 is positioned at rank 737 and the Core i7-3920XM is on rank 582, so the Core i7-3920XM offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom C3808
Performance Per Dollar Core i7-3920XM
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom C3808 | Core i7-3920XM |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Goldmont (2016−2017) / 14 nm) | 🛑 Legacy (Ivy Bridge (2012−2013) / 22 nm) |
💎 Value Proposition
| Insight | Atom C3808 | Core i7-3920XM |
|---|---|---|
| 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 Atom C3808 and Core i7-3920XM
Atom C3808
The Atom C3808 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 12 cores and 12 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 12 MB. L2 cache: 12 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 25 Watt. Memory support: DDR4: 2133. Passmark benchmark score: 5,671 points. Launch price was $369.
Core i7-3920XM
The Core i7-3920XM is manufactured by Intel. It was released in 29 April 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.9 GHz, with boost up to 3.8 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: PGA988. Thermal design power (TDP): 55 Watt. Memory support: DDR3. Passmark benchmark score: 5,713 points. Launch price was $1,096.
Processing Power
The Atom C3808 packs 12 cores / 12 threads, while the Core i7-3920XM offers 4 cores / 8 threads — the Atom C3808 has 8 more cores. Boost clocks reach 2 GHz on the Atom C3808 versus 3.8 GHz on the Core i7-3920XM — a 62.1% clock advantage for the Core i7-3920XM (base: 2 GHz vs 2.9 GHz). The Atom C3808 uses the Goldmont (2016−2017) architecture (14 nm), while the Core i7-3920XM uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the Atom C3808 scores 5,671 against the Core i7-3920XM's 5,713 — a 0.7% lead for the Core i7-3920XM. L3 cache: 12 MB on the Atom C3808 vs 8 MB (total) on the Core i7-3920XM.
| Feature | Atom C3808 | Core i7-3920XM |
|---|---|---|
| Cores / Threads | 12 / 12+200% | 4 / 8 |
| Boost Clock | 2 GHz | 3.8 GHz+90% |
| Base Clock | 2 GHz | 2.9 GHz+45% |
| L3 Cache | 12 MB+50% | 8 MB (total) |
| L2 Cache | 12 MB+4700% | 256K (per core) |
| Process | 14 nm-36% | 22 nm |
| Architecture | Goldmont (2016−2017) | Ivy Bridge (2012−2013) |
| PassMark | 5,671 | 5,713 |
| Geekbench 6 Single | — | 686 |
Memory & Platform
The Atom C3808 uses the FCBGA1310 socket (PCIe 3.0), while the Core i7-3920XM uses PGA988 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2133 on the Atom C3808 versus DDR3-1600 on the Core i7-3920XM — the Atom C3808 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom C3808 supports up to 256 GB of RAM compared to 32 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Atom C3808) vs 16 (Core i7-3920XM) — the Core i7-3920XM offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1310 (Atom C3808) and HM77,QM77 (Core i7-3920XM).
| Feature | Atom C3808 | Core i7-3920XM |
|---|---|---|
| Socket | FCBGA1310 | PGA988 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2133+33% | DDR3-1600 |
| Max RAM Capacity | 256 GB+700% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 12 | 16+33% |
Advanced Features
Virtualization: not specified (Atom C3808) / VT-x, VT-d, EPT (Core i7-3920XM). The Core i7-3920XM includes integrated graphics (HD Graphics 4000), while the Atom C3808 requires a dedicated GPU. Primary use case: Core i7-3920XM targets Extreme Performance Laptop. Direct competitor: Core i7-3920XM rivals A10-5750M.
| Feature | Atom C3808 | Core i7-3920XM |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | HD Graphics 4000 |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d, EPT |
| Target Use | — | Extreme Performance Laptop |
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