
Athlon XP 3100+

Sempron 3300+
Athlon XP 3100+ vs Sempron 3300+ 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 3100+ vs Sempron 3300+ 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 3100+ vs Sempron 3300+: 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 3100+
2003Why buy it
- ✅Better for gaming: +9.8% higher average FPS across 50 shared CPU benchmark tests.
Trade-offs
- ❌Launch MSRP is still $150 MSRP, while Sempron 3300+ mostly shows up through inconsistent older-market listings.
Sempron 3300+
2001Why buy it
- ✅Draws 62W instead of 68W, a 6W reduction.
Trade-offs
- ❌Worse for gaming: lower average FPS than Athlon XP 3100+ across 50 shared CPU benchmark tests.
- ❌Lower PassMark (412 vs 425).
Quick Answers
So, is Athlon XP 3100+ better than Sempron 3300+?
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 3100+ vs Sempron 3300+ Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Athlon XP 3100+
The Athlon XP 3100+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Thorton (2001−2003) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: A. Thermal design power (TDP): 68 Watt. Passmark benchmark score: 425 points. Launch price was $149.

Sempron 3300+
The Sempron 3300+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 512K. Built on 130 nm process technology. Socket: 754. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 412 points. Launch price was $30.
Processing Power
Both the Athlon XP 3100+ and Sempron 3300+ share an identical 1-core/1-thread configuration. Boost clocks reach 2.2 GHz on the Athlon XP 3100+ versus 2 GHz on the Sempron 3300+ — a 9.5% clock advantage for the Athlon XP 3100+. The Athlon XP 3100+ uses the Thorton (2001−2003) architecture (130 nm), while the Sempron 3300+ uses Palermo (2001−2005) (130 nm). In PassMark, the Athlon XP 3100+ scores 425 against the Sempron 3300+'s 412 — a 3.1% lead for the Athlon XP 3100+. Both processors carry 0 kB of L3 cache.
| Feature | Athlon XP 3100+ | Sempron 3300+ |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 2.2 GHz+10% | 2 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 256 kB | 512K+100% |
| Process | 130 nm | 130 nm |
| Architecture | Thorton (2001−2003) | Palermo (2001−2005) |
| PassMark | 425+3% | 412 |
Memory & Platform
The Athlon XP 3100+ uses the A socket (PCIe 1.1), while the Sempron 3300+ uses 754 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Athlon XP 3100+ | Sempron 3300+ |
|---|---|---|
| Socket | A | 754 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR-333 | — |
| Max RAM Capacity | 4 GB | — |
| RAM Channels | 1 | — |
| ECC Support | No | — |
| PCIe Lanes | 0 | — |
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