VIA Nano X2 U4025 vs Pentium D 940
VIA Nano X2 U4025
Pentium D 940
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 VIA Nano X2 U4025 is positioned at rank 831 and the Pentium D 940 is on rank 1055, so the VIA Nano X2 U4025 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar VIA Nano X2 U4025
Performance Per Dollar Pentium D 940
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | VIA Nano X2 U4025 | Pentium D 940 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (CNC (2011) / 40 nm) | 🛑 Legacy (NetBurst (2000−2006) / 65 nm) |
💎 Value Proposition
| Insight | VIA Nano X2 U4025 | Pentium D 940 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
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 VIA Nano X2 U4025 and Pentium D 940
VIA Nano X2 U4025
The VIA Nano X2 U4025 is manufactured by TSMC. It was released in Janeiro 2011 (14 years ago). It is based on the CNC (2011) architecture. It features 2 cores and 2 threads. Max frequency: 1.2 GHz. L2 cache: 1 MB (per core). Built on 40 nm process technology. Socket: NanoBGA2. Thermal design power (TDP): 13 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 885 points. Launch price was $69.
Pentium D 940
The Pentium D 940 is manufactured by Intel. It was released in 5 January 2006 (19 years ago). It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 130 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 875 points. Launch price was $423.
Processing Power
Both the VIA Nano X2 U4025 and Pentium D 940 share an identical 2-core/2-thread configuration. Boost clocks reach 1.2 GHz on the VIA Nano X2 U4025 versus 3.2 GHz on the Pentium D 940 — a 90.9% clock advantage for the Pentium D 940. The VIA Nano X2 U4025 uses the CNC (2011) architecture (40 nm), while the Pentium D 940 uses NetBurst (2000−2006) (65 nm). In PassMark, the VIA Nano X2 U4025 scores 885 against the Pentium D 940's 875 — a 1.1% lead for the VIA Nano X2 U4025.
| Feature | VIA Nano X2 U4025 | Pentium D 940 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.2 GHz | 3.2 GHz+167% |
| Base Clock | — | 3.2 GHz |
| L3 Cache | — | 0 kB |
| L2 Cache | 1 MB (per core) | 2 MB (total)+100% |
| Process | 40 nm-38% | 65 nm |
| Architecture | CNC (2011) | NetBurst (2000−2006) |
| PassMark | 885+1% | 875 |
Memory & Platform
The VIA Nano X2 U4025 uses the NanoBGA2 socket (PCIe 2.0), while the Pentium D 940 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | VIA Nano X2 U4025 | Pentium D 940 |
|---|---|---|
| Socket | NanoBGA2 | LGA775 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
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