Athlon XP 1800+ vs Pentium III 1200

Athlon XP 1800+ vs Pentium III 1200 Performance Spectrum

Athlon XP 1800+

1 / 1

225

+15.4%

Athlon XP 1600+

Ryzen 7 4700GE

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Ryzen Threadripper 7980X

Pentium III 1200

1 / 1

195

0.0%

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 1800+ vs Pentium III 1200 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 1800+ vs Pentium III 1200: 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 1800+

2001

Why buy it

✅Better for gaming: +20.0% higher average FPS across 50 shared CPU benchmark tests.
✅Includes a boxed cooler (Stock), unlike Pentium III 1200.

Trade-offs

❌Lower PassMark per dollar, at 0.9 vs 1.0 PassMark/$ ($252 MSRP vs $200 MSRP).
❌120% higher power demand at 66W vs 30W.

Pentium III 1200

2001

Why buy it

✅Costs $52 less on MSRP ($200 MSRP vs $252 MSRP).
✅Delivers 9.2% more PassMark for each dollar spent, at 1.0 vs 0.9 PassMark/$ ($200 MSRP vs $252 MSRP).
✅Draws 30W instead of 66W, a 36W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Athlon XP 1800+ across 50 shared CPU benchmark tests.
❌Lower PassMark (195 vs 225).
❌No boxed cooler included, unlike Athlon XP 1800+.

Quick Answers

So, is Athlon XP 1800+ better than Pentium III 1200?

Yes. Athlon XP 1800+ is the better all-around CPU here. It gives you a 20.0% average FPS lead across 50 shared CPU game tests in our data, 15.4% 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 1800+ is the better pick. According to our tests, it delivers 20.0% 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 1800+ is the stronger fit. You are getting 15.4% better PassMark, backed by 1 cores and 1 threads.

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

Athlon XP 1800+ is still the much better call for a fresh build. Athlon XP 1800+ comes in 26.0% more expensive on MSRP at $252 MSRP versus $200 MSRP, and it still gives you a 20.0% average FPS lead across 50 shared CPU game tests in our data. Pentium III 1200 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2001 platform. Even with 9.2% better value on paper (1.0 vs 0.9 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on PGA370.

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

Athlon XP 1800+ makes more sense long term for 2026 and beyond. You are getting 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 1800+ vs Pentium III 1200 Technical Specifications

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

Athlon XP 1800+

The Athlon XP 1800+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Thoroughbred (2001−2002) architecture. It features 1 cores and 1 threads. Max frequency: 1.53 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 180 nm process technology. Socket: A. Thermal design power (TDP): 66 Watt. Passmark benchmark score: 225 points. Launch price was $59.

Pentium III 1200

The Pentium III 1200 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: 1.2 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: PGA370. Thermal design power (TDP): 30 Watt. Passmark benchmark score: 195 points. Launch price was $69.

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Processing Power

Both the Athlon XP 1800+ and Pentium III 1200 share an identical 1-core/1-thread configuration. Boost clocks reach 1.53 GHz on the Athlon XP 1800+ versus 1.2 GHz on the Pentium III 1200 — a 24.2% clock advantage for the Athlon XP 1800+. The Athlon XP 1800+ uses the Thoroughbred (2001−2002) architecture (180 nm), while the Pentium III 1200 uses Tualatin (2000−2002) (130 nm). In PassMark, the Athlon XP 1800+ scores 225 against the Pentium III 1200's 195 — a 14.3% lead for the Athlon XP 1800+. Both processors carry 0 kB of L3 cache.

Feature	Athlon XP 1800+	Pentium III 1200
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.53 GHz+28%	1.2 GHz
L3 Cache	0 kB	0 kB
L2 Cache	256 kB	256 kB
Process	180 nm	130 nm-28%
Architecture	Thoroughbred (2001−2002)	Tualatin (2000−2002)
PassMark	225+15%	195
Geekbench 6 Single	180	—
Geekbench 6 Multi	651	—

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Memory & Platform

The Athlon XP 1800+ uses the A socket (PCIe 1.1), while the Pentium III 1200 uses PGA370 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR1 on the Athlon XP 1800+ versus SDR-133 on the Pentium III 1200 — the Athlon XP 1800+ supports -100.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon XP 1800+ supports up to 2 GB of RAM compared to 512 MB — 300% more capacity for professional workloads. Both feature 1-channel memory with ECC support.

Feature	Athlon XP 1800+	Pentium III 1200
Socket	A	PGA370
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR1	SDR-133
Max RAM Capacity	2 GB+300%	512 MB
RAM Channels	1	1
ECC Support	No	No
PCIe Lanes	—	0

🔧

Advanced Features

Neither processor supports overclocking. Virtualization support: No (Athlon XP 1800+) vs None (Pentium III 1200). Primary use case: Athlon XP 1800+ targets Budget, Pentium III 1200 targets Legacy. Direct competitor: Athlon XP 1800+ rivals Pentium D 830.

Feature	Athlon XP 1800+	Pentium III 1200
Integrated GPU	No	No
Unlocked	No	No
AVX-512	No	No
Virtualization	No	None
Target Use	Budget	Legacy

💰

Value Analysis

At launch, the Athlon XP 1800+ was priced at $252, while the Pentium III 1200 came in at $200. On launch pricing ($252 vs $200), Pentium III 1200 was $52 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon XP 1800+ delivers 0.9 pts/$ vs 1.0 pts/$ for the Pentium III 1200 — making the Pentium III 1200 the 8.8% better value option.

Feature	Athlon XP 1800+	Pentium III 1200
MSRP	$252	$200-21%
Performance per Dollar	0.9	1.0+11%
Release Date	2001	2001

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