
Athlon XP 1600+

Atom Z500
Athlon XP 1600+ vs Atom Z500 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.
Athlon XP 1600+ vs Atom Z500 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
Athlon XP 1600+ vs Atom Z500: 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 1600+
2001Why buy it
- ✅Better for gaming: +25.0% higher average FPS across 47 shared CPU benchmark tests.
- ✅Draws 63W instead of 650W, a 587W reduction.
- ✅Includes a boxed cooler (Yes), unlike Atom Z500.
Trade-offs
- ❌Launch MSRP is still $160 MSRP, while Atom Z500 mostly shows up through inconsistent older-market listings.
Atom Z500
2008Why buy it
Trade-offs
- ❌Worse for gaming: lower average FPS than Athlon XP 1600+ across 47 shared CPU benchmark tests.
- ❌Lower PassMark (165 vs 200).
- ❌931.7% higher power demand at 650W vs 63W.
- ❌No boxed cooler included, unlike Athlon XP 1600+.
Quick Answers
So, is Athlon XP 1600+ better than Atom Z500?
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?
Athlon XP 1600+ vs Atom Z500 Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Athlon XP 1600+
The Athlon XP 1600+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Thoroughbred (2001−2002) architecture. It features 1 cores and 1 threads. Max frequency: 1.4 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 180 nm process technology. Socket: A. Thermal design power (TDP): 63 Watt. Passmark benchmark score: 200 points. Launch price was $149.

Atom Z500
The Atom Z500 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 1 threads. Max frequency: 0.8 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 0.65 Watt. Passmark benchmark score: 165 points. Launch price was $45.
Processing Power
Both the Athlon XP 1600+ and Atom Z500 share an identical 1-core/1-thread configuration. Boost clocks reach 1.4 GHz on the Athlon XP 1600+ versus 0.8 GHz on the Atom Z500 — a 54.5% clock advantage for the Athlon XP 1600+. The Athlon XP 1600+ uses the Thoroughbred (2001−2002) architecture (180 nm), while the Atom Z500 uses Silverthorne (2008−2010) (45 nm). In PassMark, the Athlon XP 1600+ scores 200 against the Atom Z500's 165 — a 19.2% lead for the Athlon XP 1600+. Both processors carry 0 kB of L3 cache.
| Feature | Athlon XP 1600+ | Atom Z500 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.4 GHz+75% | 0.8 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 256 kB | 512 kB+100% |
| Process | 180 nm | 45 nm-75% |
| Architecture | Thoroughbred (2001−2002) | Silverthorne (2008−2010) |
| PassMark | 200+21% | 165 |
Memory & Platform
The Athlon XP 1600+ uses the A socket (PCIe 1.1), while the Atom Z500 uses PBGA441 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR-266 on the Athlon XP 1600+ versus DDR2-533 on the Atom Z500 — the Atom Z500 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: Socket A (Athlon XP 1600+) and Intel US15W (Atom Z500).
| Feature | Athlon XP 1600+ | Atom Z500 |
|---|---|---|
| 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 |
Advanced Features
Virtualization: false (Athlon XP 1600+) / not specified (Atom Z500).
| Feature | Athlon XP 1600+ | Atom Z500 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | false | — |
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