Pentium D 940 vs VIA Nano X2 U4025

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.

Pentium D 940 vs VIA Nano X2 U4025 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Pentium D 940 vs VIA Nano X2 U4025: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Pentium D 940

2006

Why buy it

Trade-offs

❌Lower PassMark (875 vs 885).
❌Launch MSRP is still $132 MSRP, while VIA Nano X2 U4025 mostly shows up through inconsistent older-market listings.
❌900% higher power demand at 130W vs 13W.

VIA Nano X2 U4025

2011

Why buy it

✅+1.1% higher PassMark.
✅Draws 13W instead of 130W, a 117W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is VIA Nano X2 U4025 better than Pentium D 940?

It depends on what you want from the system. For gaming, Pentium D 940 is ahead with a 0.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, VIA Nano X2 U4025 pulls ahead with 1.1% better PassMark.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, VIA Nano X2 U4025 is the stronger fit. You are getting 1.1% better PassMark, backed by 2 cores and 2 threads.

Which one is the smarter buy today, not just the cheaper CPU?

VIA Nano X2 U4025 is still the much better call for a fresh build. VIA Nano X2 U4025 comes in at an unclear MSRP at unclear MSRP versus $132 MSRP, and it still gives you 1.1% better PassMark. Pentium D 940 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2006 platform. Even with 100.0% better value on paper (6.6 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA775.

Which one is more future-proof for 2026 and beyond?

VIA Nano X2 U4025 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2006) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium D 940 vs VIA Nano X2 U4025 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

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.

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.

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Processing Power

Both the Pentium D 940 and VIA Nano X2 U4025 share an identical 2-core/2-thread configuration. Boost clocks reach 3.2 GHz on the Pentium D 940 versus 1.2 GHz on the VIA Nano X2 U4025 — a 90.9% clock advantage for the Pentium D 940. The Pentium D 940 uses the NetBurst (2000−2006) architecture (65 nm), while the VIA Nano X2 U4025 uses CNC (2011) (40 nm). In PassMark, the Pentium D 940 scores 875 against the VIA Nano X2 U4025's 885 — a 1.1% lead for the VIA Nano X2 U4025.

Feature	Pentium D 940	VIA Nano X2 U4025
Cores / Threads	2 / 2	2 / 2
Boost Clock	3.2 GHz+167%	1.2 GHz
Base Clock	3.2 GHz	—
L3 Cache	0 kB	—
L2 Cache	2 MB (total)+100%	1 MB (per core)
Process	65 nm	40 nm-38%
Architecture	NetBurst (2000−2006)	CNC (2011)
PassMark	875	885+1%

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Memory & Platform

The Pentium D 940 uses the LGA775 socket (PCIe 1.1), while the VIA Nano X2 U4025 uses NanoBGA2 (PCIe 2.0) — making them incompatible on the same motherboard.