CPU
GPU
Pentium U5400
Atom Z2580
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 Pentium U5400 is positioned at rank 1219 and the Atom Z2580 is on rank 9, so the Atom Z2580 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium U5400
Performance Per Dollar Atom Z2580
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium U5400 | Atom Z2580 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($214) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Clovertrail (2013) / 32 nm) |
💎 Value Proposition
| Insight | Pentium U5400 | Atom Z2580 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($214) | ✅ 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 Pentium U5400 and Atom Z2580
Pentium U5400
The Pentium U5400 is manufactured by Intel. It was released in 2007-01-01. It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 2 threads. Base frequency is 1.2 GHz, with boost up to 1.2 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3. Passmark benchmark score: 1,286 points. Launch price was $69.
Atom Z2580
The Atom Z2580 is manufactured by Intel. It was released in 27 February 2013 (12 years ago). It is based on the Clovertrail (2013) architecture. It features 2 cores and 4 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 32 nm process technology. Socket: FC-MB4760. Thermal design power (TDP): 3 Watt. Memory support: DDR2. Passmark benchmark score: 1,303 points. Launch price was $69.
Processing Power
The Pentium U5400 packs 2 cores / 2 threads, matching the Atom Z2580's 2 cores. Boost clocks reach 1.2 GHz on the Pentium U5400 versus 2 GHz on the Atom Z2580 — a 50% clock advantage for the Atom Z2580. The Pentium U5400 uses the Arrandale (2010−2011) architecture (32 nm), while the Atom Z2580 uses Clovertrail (2013) (32 nm). In PassMark, the Pentium U5400 scores 1,286 against the Atom Z2580's 1,303 — a 1.3% lead for the Atom Z2580. L3 cache: 3 MB (total) on the Pentium U5400 vs 0 kB on the Atom Z2580.
| Feature | Pentium U5400 | Atom Z2580 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 4 |
| Boost Clock | 1.2 GHz | 2 GHz+67% |
| Base Clock | 1.2 GHz | — |
| L3 Cache | 3 MB (total) | 0 kB |
| L2 Cache | 256K (per core) | 512K (per core)+100% |
| Process | 32 nm | 32 nm |
| Architecture | Arrandale (2010−2011) | Clovertrail (2013) |
| PassMark | 1,286 | 1,303+1% |
| Geekbench 6 Single | 170 | — |
| Geekbench 6 Multi | 300 | — |
Memory & Platform
The Pentium U5400 uses the BGA1288 socket (PCIe 2.0), while the Atom Z2580 uses FC-MB4760 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-800 on the Pentium U5400 versus LPDDR2-1066 on the Atom Z2580 — the Pentium U5400 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Pentium U5400 supports up to 8 GB of RAM compared to 2 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Pentium U5400) vs 0 (Atom Z2580) — the Pentium U5400 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM55 (Pentium U5400) and Intel BGA1264 (Atom Z2580).
| Feature | Pentium U5400 | Atom Z2580 |
|---|---|---|
| Socket | BGA1288 | FC-MB4760 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-800+50% | LPDDR2-1066 |
| Max RAM Capacity | 8 GB+300% | 2 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Virtualization: VT-x (Pentium U5400) / not specified (Atom Z2580). Both include integrated graphics — Intel HD Graphics (Ironlake) (Pentium U5400) and PowerVR SGX544MP2 (Atom Z2580) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Pentium U5400 targets Legacy Budget Laptop.
| Feature | Pentium U5400 | Atom Z2580 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | Intel HD Graphics (Ironlake) | PowerVR SGX544MP2 |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Legacy Budget Laptop | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Pentium U5400 and Atom Z2580
