Atom N475 vs Mobile Pentium 4 2.66

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.

Atom N475 vs Mobile Pentium 4 2.66 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.

Atom N475 vs Mobile Pentium 4 2.66: Pros, Cons & Final Verdict

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

Atom N475

2010

Why buy it

✅+2.5% higher PassMark.
✅Integrated graphics onboard with Intel GMA 3150, while Mobile Pentium 4 2.66 needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $75 MSRP, while Mobile Pentium 4 2.66 mostly shows up through inconsistent older-market listings.
❌675.8% higher power demand at 512W vs 66W.

Mobile Pentium 4 2.66

2003

Why buy it

✅Draws 66W instead of 512W, a 446W reduction.

Trade-offs

❌Lower PassMark (395 vs 405).
❌No integrated graphics, while Atom N475 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Atom N475 better than Mobile Pentium 4 2.66?

It depends on what you want from the system. For gaming, Mobile Pentium 4 2.66 is ahead with a 0.4% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Atom N475 pulls ahead with 2.5% better PassMark.

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

For streaming, content creation, and heavier multitasking, Atom N475 is the stronger fit. You are getting 2.5% better PassMark, backed by 1 cores and 2 threads.

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

Atom N475 is the better buy right now. Atom N475 comes in at an unclear MSRP at $75 MSRP versus unclear MSRP, and it still gives you 2.5% better PassMark. The compromise is that Mobile Pentium 4 2.66 is still the better pure gaming CPU with a 0.4% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (5.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Atom N475 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2003) and more multi-core headroom with 1 cores / 2 threads instead of 1/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom N475 vs Mobile Pentium 4 2.66 Technical Specifications

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

Atom N475

The Atom N475 is manufactured by Intel. It was released in 1 June 2010 (15 years ago). It is based on the Pineview (2009−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.83 GHz, with boost up to 1.83 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 6.5 Watt. Memory support: DDR3. Passmark benchmark score: 405 points. Launch price was $75.

Mobile Pentium 4 2.66

The Mobile Pentium 4 2.66 is manufactured by Intel. It was released in Junho 2003 (22 years ago). It is based on the Northwood (2002−2004) architecture. It features 1 cores and 2 threads. Max frequency: 2.67 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 66 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 395 points. Launch price was $69.

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Processing Power

Both the Atom N475 and Mobile Pentium 4 2.66 share an identical 1-core/2-thread configuration. Boost clocks reach 1.83 GHz on the Atom N475 versus 2.67 GHz on the Mobile Pentium 4 2.66 — a 37.3% clock advantage for the Mobile Pentium 4 2.66. The Atom N475 uses the Pineview (2009−2011) architecture (45 nm), while the Mobile Pentium 4 2.66 uses Northwood (2002−2004) (130 nm). In PassMark, the Atom N475 scores 405 against the Mobile Pentium 4 2.66's 395 — a 2.5% lead for the Atom N475. Both processors carry 0 kB of L3 cache.

Feature	Atom N475	Mobile Pentium 4 2.66
Cores / Threads	1 / 2	1 / 2
Boost Clock	1.83 GHz	2.67 GHz+46%
Base Clock	1.83 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512K (per core)	512 kB
Process	45 nm-65%	130 nm
Architecture	Pineview (2009−2011)	Northwood (2002−2004)
PassMark	405+3%	395
Geekbench 6 Single	—	800
Geekbench 6 Multi	—	800

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Memory & Platform

The Atom N475 uses the FCBGA559 socket (PCIe 2.0), while the Mobile Pentium 4 2.66 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-667 on the Atom N475 versus DDR2 on the Mobile Pentium 4 2.66 — the Atom N475 supports 33250% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Mobile Pentium 4 2.66 supports up to 4 GB of RAM compared to 2 GB — 100% more capacity for professional workloads. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: Intel NM10 (Atom N475) and 852PM,855PM (Mobile Pentium 4 2.66).

Feature	Atom N475	Mobile Pentium 4 2.66
Socket	FCBGA559	PGA478
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	DDR3-667+33250%	DDR2
Max RAM Capacity	2 GB	4 GB+100%
RAM Channels	1	1
ECC Support	No	No
PCIe Lanes	0	0

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Advanced Features

Virtualization: not specified (Atom N475) / None (Mobile Pentium 4 2.66). The Atom N475 includes integrated graphics (Intel GMA 3150), while the Mobile Pentium 4 2.66 requires a dedicated GPU. Primary use case: Mobile Pentium 4 2.66 targets Legacy Laptop.