Athlon XP 1500+
Pentium III 1133
Athlon XP 1500+ vs Pentium III 1133 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 1500+ vs Pentium III 1133 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 1500+ vs Pentium III 1133: 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+
2001Why buy it
- ✅Better for gaming: +25.0% higher average FPS across 50 shared CPU benchmark tests.
- ✅Costs $860 less on MSRP ($130 MSRP vs $990 MSRP).
- ✅Delivers 695.4% more PassMark for each dollar spent, at 1.4 vs 0.2 PassMark/$ ($130 MSRP vs $990 MSRP).
Trade-offs
- ❌106.9% higher power demand at 60W vs 29W.
Pentium III 1133
2000Why buy it
- ✅Draws 29W instead of 60W, a 31W reduction.
Trade-offs
- ❌Worse for gaming: lower average FPS than Athlon XP 1500+ across 50 shared CPU benchmark tests.
- ❌Lower PassMark (180 vs 188).
- ❌Lower PassMark per dollar, at 0.2 vs 1.4 PassMark/$ ($990 MSRP vs $130 MSRP).
Quick Answers
So, is Athlon XP 1500+ better than Pentium III 1133?
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 1500+ vs Pentium III 1133 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.
Pentium III 1133
The Pentium III 1133 is manufactured by Intel. It was released in 2007-01-01. It is based on the Tualatin (2000−2002) architecture. It features 1 cores and 1 threads. Max frequency: 1.13 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 180 nm process technology. Socket: PGA370. Thermal design power (TDP): 29 Watt. Passmark benchmark score: 180 points. Launch price was $69.
Processing Power
Both the Athlon XP 1500+ and Pentium III 1133 share an identical 1-core/1-thread configuration. Boost clocks reach 1.33 GHz on the Athlon XP 1500+ versus 1.13 GHz on the Pentium III 1133 — a 16.3% clock advantage for the Athlon XP 1500+. The Athlon XP 1500+ uses the Palomino (2001) architecture (180 nm), while the Pentium III 1133 uses Tualatin (2000−2002) (180 nm). In PassMark, the Athlon XP 1500+ scores 188 against the Pentium III 1133's 180 — a 4.3% lead for the Athlon XP 1500+. Both processors carry 0 kB of L3 cache.
| Feature | Athlon XP 1500+ | Pentium III 1133 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.33 GHz+18% | 1.13 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 256 kB | 256 kB |
| Process | 180 nm | 180 nm |
| Architecture | Palomino (2001) | Tualatin (2000−2002) |
| PassMark | 188+4% | 180 |
Memory & Platform
The Athlon XP 1500+ uses the A socket (PCIe 1.1), while the Pentium III 1133 uses PGA370 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Athlon XP 1500+ | Pentium III 1133 |
|---|---|---|
| Socket | A | PGA370 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | DDR-266 | — |
| Max RAM Capacity | 2 GB | — |
| RAM Channels | 1 | — |
| ECC Support | No | — |
Advanced Features
Virtualization: None (Athlon XP 1500+) / not specified (Pentium III 1133). Primary use case: Athlon XP 1500+ targets Desktop.
| Feature | Athlon XP 1500+ | Pentium III 1133 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | None | — |
| Target Use | Desktop | — |
Value Analysis
At launch, the Athlon XP 1500+ was priced at $130, while the Pentium III 1133 came in at $990. On launch pricing ($130 vs $990), Athlon XP 1500+ was $860 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon XP 1500+ delivers 1.4 pts/$ vs 0.2 pts/$ for the Pentium III 1133 — making the Athlon XP 1500+ the 155.3% better value option.
| Feature | Athlon XP 1500+ | Pentium III 1133 |
|---|---|---|
| MSRP | $130-87% | $990 |
| Performance per Dollar | 1.4+600% | 0.2 |
| Release Date | 2001 | 2000 |
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