Atom N2800 vs Phenom II X3 B77
Atom N2800
Phenom II X3 B77
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 N2800 is positioned at rank 147 and the Phenom II X3 B77 is on rank 1057, 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 Atom N2800
Performance Per Dollar Phenom II X3 B77
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom N2800 | Phenom II X3 B77 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($3) | ⚠️ Higher cost ($35) |
| Longevity | 🛑 Legacy (Cedarview-M (2011−2012) / 32 nm) | 🛑 Legacy (Heka (2009−2010) / 45 nm) |
💎 Value Proposition
| Insight | Atom N2800 | Phenom II X3 B77 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+1057%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($3) | ⚠️ Higher cost ($35) |
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 N2800 and Phenom II X3 B77
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.
Phenom II X3 B77
The Phenom II X3 B77 is manufactured by AMD. It was released in 2009-01-01. It is based on the Heka (2009−2010) architecture. It features 3 cores and 3 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 1,844 points. Launch price was $149.
Processing Power
The Atom N2800 packs 2 cores / 4 threads, while the Phenom II X3 B77 offers 3 cores / 3 threads — the Phenom II X3 B77 has 1 more core. Boost clocks reach 1.87 GHz on the Atom N2800 versus 3.2 GHz on the Phenom II X3 B77 — a 52.5% clock advantage for the Phenom II X3 B77 (base: 1.86 GHz vs 3.2 GHz). The Atom N2800 uses the Cedarview-M (2011−2012) architecture (32 nm), while the Phenom II X3 B77 uses Heka (2009−2010) (45 nm). In PassMark, the Atom N2800 scores 1,829 against the Phenom II X3 B77's 1,844 — a 0.8% lead for the Phenom II X3 B77. L3 cache: 0 kB on the Atom N2800 vs 6 MB (total) on the Phenom II X3 B77.
| Feature | Atom N2800 | Phenom II X3 B77 |
|---|---|---|
| Cores / Threads | 2 / 4 | 3 / 3+50% |
| Boost Clock | 1.87 GHz | 3.2 GHz+71% |
| Base Clock | 1.86 GHz | 3.2 GHz+72% |
| L3 Cache | 0 kB | 6 MB (total) |
| L2 Cache | 512K (per core) | 512 kB (per core) |
| Process | 32 nm-29% | 45 nm |
| Architecture | Cedarview-M (2011−2012) | Heka (2009−2010) |
| PassMark | 1,829 | 1,844 |
Memory & Platform
The Atom N2800 uses the FCBGA559 socket (PCIe 2.0), while the Phenom II X3 B77 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1066 memory speed. The Phenom II X3 B77 supports up to 32 GB of RAM compared to 4 GB — 155.6% more capacity for professional workloads. Memory channels: 1 (Atom N2800) vs 2 (Phenom II X3 B77). PCIe lanes: 4 (Atom N2800) vs 0 (Phenom II X3 B77) — the Atom N2800 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel NM10 (Atom N2800) and AM3 (Phenom II X3 B77).
| Feature | Atom N2800 | Phenom II X3 B77 |
|---|---|---|
| Socket | FCBGA559 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1066 | DDR3-1333 |
| Max RAM Capacity | 4 GB | 32 GB+700% |
| RAM Channels | 1 | 2+100% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 4 | 0 |
Advanced Features
The Atom N2800 includes integrated graphics (Intel GMA 3650), while the Phenom II X3 B77 requires a dedicated GPU.
| Feature | Atom N2800 | Phenom II X3 B77 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel GMA 3650 | — |
Value Analysis
The Atom N2800 launched at $47 MSRP, while the Phenom II X3 B77 debuted at $281. At current prices ($3 vs $35), the Atom N2800 is $32 cheaper. In terms of value (PassMark points per dollar), the Atom N2800 delivers 609.7 pts/$ vs 52.7 pts/$ for the Phenom II X3 B77 — making the Atom N2800 the 168.2% better value option.
| Feature | Atom N2800 | Phenom II X3 B77 |
|---|---|---|
| MSRP | $47-83% | $281 |
| Avg Price (30d) | $3-91% | $35 |
| Performance per Dollar | 609.7+1057% | 52.7 |
| Release Date | 2011 | 2010 |
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