Athlon XP 1500+ vs Atom Z520

Athlon XP 1500+ vs Atom Z520 Performance Spectrum

Athlon XP 1500+

1 / 1

188

0.0%

Ryzen 7 4700GE

Ryzen 9 5900X

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Ryzen Threadripper 7980X

Ryzen Threadripper PRO 9995WX

Atom Z520

1 / 2

215

+14.4%

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.

Athlon XP 1500+ vs Atom Z520 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.

Athlon XP 1500+ vs Atom Z520: Pros, Cons & Final Verdict

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

Athlon XP 1500+

2001

Why buy it

Trade-offs

❌Lower PassMark (188 vs 215).
❌Launch MSRP is still $130 MSRP, while Atom Z520 mostly shows up through inconsistent older-market listings.
❌2900% higher power demand at 60W vs 2W.

Atom Z520

2008

Why buy it

✅+14.4% higher PassMark.
✅Draws 2W instead of 60W, a 58W reduction.

Trade-offs

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

Quick Answers

So, is Atom Z520 better than Athlon XP 1500+?

It depends on what you want from the system. For gaming, Athlon XP 1500+ is ahead with 4333.3% higher max boost clock. For rendering, compiling, streaming, and heavier multitasking, Atom Z520 pulls ahead with 14.4% better PassMark.

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

For streaming, content creation, and heavier multitasking, Atom Z520 is the stronger fit. You are getting 14.4% better PassMark, backed by 1 cores and 2 threads.

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

Atom Z520 is still the much better call for a fresh build. Atom Z520 comes in at an unclear MSRP at unclear MSRP versus $130 MSRP, and it still gives you 14.4% better PassMark. Athlon XP 1500+ only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2001 platform. Even with 100.0% better value on paper (1.4 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on A.

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

Atom Z520 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2008 vs 2001) and more multi-core headroom with 1 cores / 2 threads instead of 1/1. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Athlon XP 1500+ vs Atom Z520 Technical Specifications

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

Athlon XP 1500+

The Athlon XP 1500+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Palomino (2001) architecture. It features 1 cores and 1 threads. Max frequency: 1.33 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 180 nm process technology. Socket: A. Thermal design power (TDP): 60 Watt. Passmark benchmark score: 188 points. Launch price was $149.

Atom Z520

The Atom Z520 is manufactured by Intel. It was released in 2 April 2008 (17 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 2 threads. Base frequency is 1.33 GHz, with boost up to 0.03 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2 Watt. Passmark benchmark score: 215 points. Launch price was $65.

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Processing Power

The Athlon XP 1500+ packs 1 cores / 1 threads, matching the Atom Z520's 1 cores. Boost clocks reach 1.33 GHz on the Athlon XP 1500+ versus 0.03 GHz on the Atom Z520 — a 191.2% clock advantage for the Athlon XP 1500+. The Athlon XP 1500+ uses the Palomino (2001) architecture (180 nm), while the Atom Z520 uses Silverthorne (2008−2010) (45 nm). In PassMark, the Athlon XP 1500+ scores 188 against the Atom Z520's 215 — a 13.4% lead for the Atom Z520. Both processors carry 0 kB of L3 cache.

Feature	Athlon XP 1500+	Atom Z520
Cores / Threads	1 / 1	1 / 2
Boost Clock	1.33 GHz+4333%	0.03 GHz
Base Clock	—	1.33 GHz
L3 Cache	0 kB	0 kB
L2 Cache	256 kB	512 kB+100%
Process	180 nm	45 nm-75%
Architecture	Palomino (2001)	Silverthorne (2008−2010)
PassMark	188	215+14%

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Memory & Platform

The Athlon XP 1500+ uses the A socket (PCIe 1.1), while the Atom Z520 uses PBGA441 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR-266 on the Athlon XP 1500+ versus DDR2-533 on the Atom Z520 — the Atom Z520 supports -300.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 2 GB of RAM. Both feature 1-channel memory with ECC support. Chipset compatibility: AMD Socket A (Athlon XP 1500+) and Intel US15W (Atom Z520).

Feature	Athlon XP 1500+	Atom Z520
Socket	A	PBGA441
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR-266	DDR2-533
Max RAM Capacity	2 GB	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 (Athlon XP 1500+) vs VT-x (Atom Z520). Primary use case: Athlon XP 1500+ targets Desktop, Atom Z520 targets Mobile.