
Mobile Pentium 4 2.66

Ryzen 7 3700X
Mobile Pentium 4 2.66 vs Ryzen 7 3700X Performance Spectrum
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.
Mobile Pentium 4 2.66 vs Ryzen 7 3700X 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.

Path of Exile 2

Counter-Strike 2

League of Legends

Valorant

Among Us

Apex Legends

ARC Raiders

Baldur's Gate 3

Call of Duty: Black Ops 6
Mobile Pentium 4 2.66 vs Ryzen 7 3700X: 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
2003Why buy it
Trade-offs
- ❌Worse for gaming: lower average FPS than Ryzen 7 3700X across 50 shared CPU benchmark tests.
- ❌Lower PassMark (395 vs 22,430).
Ryzen 7 3700X
2019Why buy it
- ✅Better for gaming: +2362.0% higher average FPS across 50 shared CPU benchmark tests.
- ✅Draws 65W instead of 66W, a 1W reduction.
- ✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.
Trade-offs
- ❌Launch MSRP is still $329 MSRP, while Mobile Pentium 4 2.66 mostly shows up through inconsistent older-market listings.
Quick Answers
So, is Ryzen 7 3700X better than Mobile Pentium 4 2.66?
Which one is better for gaming?
Which one is better for streaming, content creation, and heavy multitasking?
Which one is the smarter buy today, not just the cheaper CPU?
Which one is more future-proof for 2026 and beyond?
Mobile Pentium 4 2.66 vs Ryzen 7 3700X 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.


Ryzen 7 3700X
The Ryzen 7 3700X is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.4 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4 Dual-channel. Passmark benchmark score: 22,430 points. Launch price was $329.
Processing Power
The Mobile Pentium 4 2.66 packs 1 cores / 2 threads, while the Ryzen 7 3700X offers 8 cores / 16 threads — the Ryzen 7 3700X has 7 more cores. Boost clocks reach 2.67 GHz on the Mobile Pentium 4 2.66 versus 4.4 GHz on the Ryzen 7 3700X — a 48.9% clock advantage for the Ryzen 7 3700X. The Mobile Pentium 4 2.66 uses the Northwood (2002−2004) architecture (130 nm), while the Ryzen 7 3700X uses Matisse (Zen 2) (2019−2020) (7 nm, 12 nm). In PassMark, the Mobile Pentium 4 2.66 scores 395 against the Ryzen 7 3700X's 22,430 — a 193.1% lead for the Ryzen 7 3700X. L3 cache: 0 kB on the Mobile Pentium 4 2.66 vs 32 MB on the Ryzen 7 3700X.
| Feature | Mobile Pentium 4 2.66 | Ryzen 7 3700X |
|---|---|---|
| Cores / Threads | 1 / 2 | 8 / 16+700% |
| Boost Clock | 2.67 GHz | 4.4 GHz+65% |
| Base Clock | — | 3.6 GHz |
| L3 Cache | 0 kB | 32 MB |
| L2 Cache | 512 kB | 512K (per core) |
| Process | 130 nm | 7 nm, 12 nm-95% |
| Architecture | Northwood (2002−2004) | Matisse (Zen 2) (2019−2020) |
| PassMark | 395 | 22,430+5578% |
| Geekbench 6 Single | 800 | — |
| Geekbench 6 Multi | 800 | — |
Memory & Platform
The Mobile Pentium 4 2.66 uses the PGA478 socket (PCIe 1.1), while the Ryzen 7 3700X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2 on the Mobile Pentium 4 2.66 versus DDR4-3200 on the Ryzen 7 3700X — the Ryzen 7 3700X supports 159900% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 7 3700X supports up to 128 GB of RAM compared to 4 GB — 3100% more capacity for professional workloads. Memory channels: 1 (Mobile Pentium 4 2.66) vs 2 (Ryzen 7 3700X). PCIe lanes: 0 (Mobile Pentium 4 2.66) vs 24 (Ryzen 7 3700X) — the Ryzen 7 3700X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 852PM,855PM (Mobile Pentium 4 2.66) and AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 3700X).
| Feature | Mobile Pentium 4 2.66 | Ryzen 7 3700X |
|---|---|---|
| Socket | PGA478 | AM4 |
| PCIe Generation | PCIe 1.1 | PCIe 4.0+264% |
| Max RAM Speed | DDR2 | DDR4-3200+159900% |
| Max RAM Capacity | 4 GB | 128 GB+3100% |
| RAM Channels | 1 | 2+100% |
| ECC Support | No | Yes |
| PCIe Lanes | 0 | 24 |
Advanced Features
Virtualization: None (Mobile Pentium 4 2.66) / not specified (Ryzen 7 3700X). Primary use case: Mobile Pentium 4 2.66 targets Legacy Laptop.
| Feature | Mobile Pentium 4 2.66 | Ryzen 7 3700X |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | None | — |
| Target Use | Legacy Laptop | — |
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