Atom Z515 vs Z-01
Atom Z515
Z-01
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 Z515 is positioned at rank 894 and the Z-01 is on rank 1221, so the Atom Z515 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom Z515
Performance Per Dollar Z-01
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom Z515 | Z-01 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (Silverthorne (2008−2010) / 45 nm) | 🛑 Legacy (Desna (2011) / 40 nm) |
💎 Value Proposition
| Insight | Atom Z515 | Z-01 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($10) |
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 Z515 and Z-01
Atom Z515
The Atom Z515 is manufactured by Intel. It was released in 8 April 2009 (16 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 1 threads. Base frequency is 1.2 GHz, with boost up to 1.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 1.4 Watt. Memory support: unknown. Passmark benchmark score: 195 points. Launch price was $69.
Z-01
The Z-01 is manufactured by AMD. It was released in 1 June 2011 (14 years ago). It is based on the Desna (2011) architecture. It features 2 cores and 2 threads. Max frequency: 1 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 40 nm process technology. Socket: FT1. Thermal design power (TDP): 6 Watt. Memory support: DDR3 Single-channel. Passmark benchmark score: 215 points. Launch price was $69.
Processing Power
The Atom Z515 packs 1 cores / 1 threads, while the Z-01 offers 2 cores / 2 threads — the Z-01 has 1 more core. Boost clocks reach 1.2 GHz on the Atom Z515 versus 1 GHz on the Z-01 — a 18.2% clock advantage for the Atom Z515. The Atom Z515 uses the Silverthorne (2008−2010) architecture (45 nm), while the Z-01 uses Desna (2011) (40 nm). In PassMark, the Atom Z515 scores 195 against the Z-01's 215 — a 9.8% lead for the Z-01. Both processors carry 0 kB of L3 cache.
| Feature | Atom Z515 | Z-01 |
|---|---|---|
| Cores / Threads | 1 / 1 | 2 / 2+100% |
| Boost Clock | 1.2 GHz+20% | 1 GHz |
| Base Clock | 1.2 GHz | — |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 512 kB (per core) | 1 MB+100% |
| Process | 45 nm | 40 nm-11% |
| Architecture | Silverthorne (2008−2010) | Desna (2011) |
| PassMark | 195 | 215+10% |
| Geekbench 6 Single | — | 100 |
| Geekbench 6 Multi | — | 180 |
Memory & Platform
The Atom Z515 uses the PBGA441 socket (PCIe 2.0), while the Z-01 uses FT1 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-533 on the Atom Z515 versus DDR3-1066 on the Z-01 — the Z-01 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Z-01 supports up to 4 GB of RAM compared to 2 GB — 66.7% more capacity for professional workloads. Both feature 1-channel memory with ECC support. PCIe lanes: 0 (Atom Z515) vs 4 (Z-01) — the Z-01 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel US15W (Atom Z515) and Desna (Z-01).
| Feature | Atom Z515 | Z-01 |
|---|---|---|
| Socket | PBGA441 | FT1 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR2-533 | DDR3-1066+50% |
| Max RAM Capacity | 2 GB | 4 GB+100% |
| RAM Channels | 1 | 1 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 4 |
Advanced Features
Virtualization: not specified (Atom Z515) / AMD-V (Z-01). The Z-01 includes integrated graphics (Radeon HD 6250), while the Atom Z515 requires a dedicated GPU. Primary use case: Z-01 targets Tablet/Netbook.
| Feature | Atom Z515 | Z-01 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon HD 6250 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Tablet/Netbook |
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