
Atom Z3735G vs Phenom II X2 X640 BE

Atom Z3735G

Phenom II X2 X640 BE
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 Z3735G is positioned at rank 5 and the Phenom II X2 X640 BE is on rank 136, so the Atom Z3735G offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom Z3735G
Performance Per Dollar Phenom II X2 X640 BE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom Z3735G | Phenom II X2 X640 BE |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($17) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Bay Trail-T (2013−2014) / 22 nm) | 🛑 Legacy (Champlain (2010−2011) / 45 nm) |
💎 Value Proposition
| Insight | Atom Z3735G | Phenom II X2 X640 BE |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($17) | ✅ 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 Atom Z3735G and Phenom II X2 X640 BE

Atom Z3735G
The Atom Z3735G is manufactured by Intel. It was released in 9 April 2014 (11 years ago). It is based on the Bay Trail-T (2013−2014) architecture. It features 4 cores and 4 threads. Base frequency is 1.33 GHz, with boost up to 1.83 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 22 nm process technology. Socket: UTFCBGA592. Thermal design power (TDP): 2 Watt. Memory support: DDR3. Passmark benchmark score: 2,891 points. Launch price was $17.

Phenom II X2 X640 BE
The Phenom II X2 X640 BE is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 2 cores and 2 threads. Max frequency: 3.2 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 2 MB. Memory support: DDR3. Passmark benchmark score: 2,839 points. Launch price was $149.
Processing Power
The Atom Z3735G packs 4 cores / 4 threads, while the Phenom II X2 X640 BE offers 2 cores / 2 threads — the Atom Z3735G has 2 more cores. Boost clocks reach 1.83 GHz on the Atom Z3735G versus 3.2 GHz on the Phenom II X2 X640 BE — a 54.5% clock advantage for the Phenom II X2 X640 BE. The Atom Z3735G uses the Bay Trail-T (2013−2014) architecture (22 nm), while the Phenom II X2 X640 BE uses Champlain (2010−2011) (45 nm). In PassMark, the Atom Z3735G scores 2,891 against the Phenom II X2 X640 BE's 2,839 — a 1.8% lead for the Atom Z3735G.
| Feature | Atom Z3735G | Phenom II X2 X640 BE |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 1.83 GHz | 3.2 GHz+75% |
| Base Clock | 1.33 GHz | — |
| L3 Cache | 2 MB L2 Cache | — |
| L2 Cache | 2 MB | 2 MB |
| Process | 22 nm-51% | 45 nm |
| Architecture | Bay Trail-T (2013−2014) | Champlain (2010−2011) |
| PassMark | 2,891+2% | 2,839 |
Memory & Platform
The Atom Z3735G uses the UTFCBGA592 socket (PCIe 2.0), while the Phenom II X2 X640 BE uses S1 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Atom Z3735G | Phenom II X2 X640 BE |
|---|---|---|
| Socket | UTFCBGA592 | S1 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3L-RS 1333 | — |
| Max RAM Capacity | 1 GB | — |
| RAM Channels | 1 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
The Atom Z3735G includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Phenom II X2 X640 BE requires a dedicated GPU.
| Feature | Atom Z3735G | Phenom II X2 X640 BE |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel HD Graphics (Bay Trail) | — |
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