CPU
GPU
Core i3-2105
Atom N2800
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 i3-2105 is positioned at rank 935 and the Atom N2800 is on rank 147, so the Atom N2800 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i3-2105
Performance Per Dollar Atom N2800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-2105 | Atom N2800 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($30) | ✅ More affordable ($3) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | 🛑 Legacy (Cedarview-M (2011−2012) / 32 nm) |
💎 Value Proposition
| Insight | Core i3-2105 | Atom N2800 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+896%) |
| Upfront Cost | ⚠️ Higher cost ($30) | ✅ More affordable ($3) |
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 i3-2105 and Atom N2800
Core i3-2105
The Core i3-2105 is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.1 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,837 points. Launch price was $145.
Atom N2800
The Atom N2800 is manufactured by Intel. It was released in 1 December 2011 (14 years ago). It is based on the Cedarview-M (2011−2012) architecture. It features 2 cores and 4 threads. Base frequency is 1.86 GHz, with boost up to 1.87 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 32 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 6.5 Watt. Memory support: DDR3. Passmark benchmark score: 1,829 points. Launch price was $47.
Processing Power
Both the Core i3-2105 and Atom N2800 share an identical 2-core/4-thread configuration. Boost clocks reach 3.1 GHz on the Core i3-2105 versus 1.87 GHz on the Atom N2800 — a 49.5% clock advantage for the Core i3-2105 (base: 3.1 GHz vs 1.86 GHz). The Core i3-2105 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Atom N2800 uses Cedarview-M (2011−2012) (32 nm). In PassMark, the Core i3-2105 scores 1,837 against the Atom N2800's 1,829 — a 0.4% lead for the Core i3-2105. L3 cache: 3 MB (total) on the Core i3-2105 vs 0 kB on the Atom N2800.
| Feature | Core i3-2105 | Atom N2800 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 4 |
| Boost Clock | 3.1 GHz+66% | 1.87 GHz |
| Base Clock | 3.1 GHz+67% | 1.86 GHz |
| L3 Cache | 3 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 512K (per core)+100% |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge (2011−2013) | Cedarview-M (2011−2012) |
| PassMark | 1,837 | 1,829 |
Memory & Platform
The Core i3-2105 uses the LGA1155 socket (PCIe 2.0), while the Atom N2800 uses FCBGA559 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. The Core i3-2105 supports up to 32 GB of RAM compared to 4 GB — 155.6% more capacity for professional workloads. Memory channels: 2 (Core i3-2105) vs 1 (Atom N2800). PCIe lanes: 16 (Core i3-2105) vs 4 (Atom N2800) — the Core i3-2105 offers 12 more lanes for additional GPUs or NVMe drives.
| Feature | Core i3-2105 | Atom N2800 |
|---|---|---|
| Socket | LGA1155 | FCBGA559 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | DDR3-1066 |
| Max RAM Capacity | 32 GB+700% | 4 GB |
| RAM Channels | 2+100% | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16+300% | 4 |
Advanced Features
Virtualization: VT-x (Core i3-2105) / not specified (Atom N2800). Both include integrated graphics — HD Graphics 3000 (Core i3-2105) and Intel GMA 3650 (Atom N2800) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-2105 targets Desktop.
| Feature | Core i3-2105 | Atom N2800 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics 3000 | Intel GMA 3650 |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Desktop | — |
Value Analysis
The Core i3-2105 launched at $138 MSRP, while the Atom N2800 debuted at $47. At current prices ($30 vs $3), the Atom N2800 is $27 cheaper. In terms of value (PassMark points per dollar), the Core i3-2105 delivers 61.2 pts/$ vs 609.7 pts/$ for the Atom N2800 — making the Atom N2800 the 163.5% better value option.
| Feature | Core i3-2105 | Atom N2800 |
|---|---|---|
| MSRP | $138 | $47-66% |
| Avg Price (30d) | $30 | $3-90% |
| Performance per Dollar | 61.2 | 609.7+896% |
| Release Date | 2011 | 2011 |
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