Mobile Pentium 4 2.66 vs Pentium M 715

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.

Mobile Pentium 4 2.66 vs Pentium M 715 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.

Mobile Pentium 4 2.66 vs Pentium M 715: Pros, Cons & Final Verdict

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

Mobile Pentium 4 2.66

2003

Why buy it

Trade-offs

❌Lower PassMark (395 vs 405).
❌214.3% higher power demand at 66W vs 21W.

Pentium M 715

2004

Why buy it

✅+2.5% higher PassMark.
✅Draws 21W instead of 66W, a 45W reduction.

Trade-offs

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

Quick Answers

So, is Pentium M 715 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 0.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Pentium M 715 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, Pentium M 715 is the stronger fit. You are getting 2.5% better PassMark, backed by 1 cores and 1 threads.

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

Pentium M 715 still makes the most sense overall. Pentium M 715 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 2.5% better PassMark.

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

Pentium M 715 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2004 vs 2003) and more multi-core headroom with 1 cores / 1 threads instead of 1/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Mobile Pentium 4 2.66 vs Pentium M 715 Technical Specifications

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

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.

Pentium M 715

The Pentium M 715 is manufactured by Intel. It was released in 2007-01-01. It is based on the Dothan (2004−2005) architecture. It features 1 cores and 1 threads. Base frequency is 1.5 GHz, with boost up to 1.5 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 90 nm process technology. Socket: PGA478. Thermal design power (TDP): 7.5 Watt. Memory support: DDR2. Passmark benchmark score: 405 points. Launch price was $69.

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Processing Power

The Mobile Pentium 4 2.66 packs 1 cores / 2 threads, matching the Pentium M 715's 1 cores. Boost clocks reach 2.67 GHz on the Mobile Pentium 4 2.66 versus 1.5 GHz on the Pentium M 715 — a 56.1% clock advantage for the Mobile Pentium 4 2.66. The Mobile Pentium 4 2.66 uses the Northwood (2002−2004) architecture (130 nm), while the Pentium M 715 uses Dothan (2004−2005) (90 nm). In PassMark, the Mobile Pentium 4 2.66 scores 395 against the Pentium M 715's 405 — a 2.5% lead for the Pentium M 715. Both processors carry 0 kB of L3 cache.

Feature	Mobile Pentium 4 2.66	Pentium M 715
Cores / Threads	1 / 2	1 / 1
Boost Clock	2.67 GHz+78%	1.5 GHz
Base Clock	—	1.5 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB	2 MB+300%
Process	130 nm	90 nm-31%
Architecture	Northwood (2002−2004)	Dothan (2004−2005)
PassMark	395	405+3%
Geekbench 6 Single	800	—
Geekbench 6 Multi	800	—

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Memory & Platform

Both processors use the PGA478 socket with PCIe 1.1. Maximum memory speed reaches DDR2 on the Mobile Pentium 4 2.66 versus DDR2-533 on the Pentium M 715 — the Pentium M 715 supports 26550% 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. Chipset compatibility: 852PM,855PM (Mobile Pentium 4 2.66) and Socket 479 (Pentium M 715).

Feature	Mobile Pentium 4 2.66	Pentium M 715
Socket	PGA478	PGA478
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR2	DDR2-533+26550%
Max RAM Capacity	4 GB+100%	2 GB
RAM Channels	1	1
ECC Support	No	No
PCIe Lanes	0	—

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Advanced Features

Neither processor supports overclocking. Virtualization support: None (Mobile Pentium 4 2.66) vs false (Pentium M 715). Primary use case: Mobile Pentium 4 2.66 targets Legacy Laptop.