Athlon XP 3100+ vs Sempron 3300+

AMD

Athlon XP 3100+

1 Cores1 Thrd68 WWMax: 2.2 GHz2003
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VS
AMD

Sempron 3300+

1 Cores1 Thrd62 WWMax: 2 GHz2001
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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.

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+

2003

Why 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+

2001

Why 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+?
Yes. Athlon XP 3100+ is the better all-around CPU here. It gives you a 9.8% average FPS lead across 50 shared CPU game tests in our data, 3.2% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.
Which one is better for gaming?
If gaming is the priority, Athlon XP 3100+ is the better pick. According to our tests, it delivers 9.8% more average FPS across 50 shared CPU game tests.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Athlon XP 3100+ is the stronger fit. You are getting 3.2% better PassMark, backed by 1 cores and 1 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Athlon XP 3100+ is the better buy right now. Athlon XP 3100+ comes in at an unclear MSRP at $150 MSRP versus unclear MSRP, and it still gives you a 9.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (2.8 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.
Which one is more future-proof for 2026 and beyond?
Athlon XP 3100+ makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2003 vs 2001) and more multi-core headroom with 1 cores / 1 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 3100+ vs Sempron 3300+ Technical Specifications

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

AMD

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.

AMD

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.

FeatureAthlon 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
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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.

FeatureAthlon 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