Atom Z510 vs Pentium III 1133

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.

Atom Z510 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.

Atom Z510 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.

Atom Z510

2008

Why buy it

✅Better for gaming: +25.0% higher average FPS across 29 shared CPU benchmark tests.
✅Draws 2W instead of 29W, a 27W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Pentium III 1133

2000

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Atom Z510 across 29 shared CPU benchmark tests.
❌Lower PassMark (180 vs 185).
❌Launch MSRP is still $990 MSRP, while Atom Z510 mostly shows up through inconsistent older-market listings.
❌1350% higher power demand at 29W vs 2W.

Quick Answers

So, is Atom Z510 better than Pentium III 1133?

Yes. Atom Z510 is the better all-around CPU here. It gives you a 25.0% average FPS lead across 29 shared CPU game tests in our data, 2.8% 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, Atom Z510 is the better pick. According to our tests, it delivers 25.0% more average FPS across 29 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Atom Z510 is the stronger fit. You are getting 2.8% better PassMark, backed by 1 cores and 1 threads.

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

Atom Z510 is still the much better call for a fresh build. Atom Z510 comes in at an unclear MSRP at unclear MSRP versus $990 MSRP, and it still gives you a 25.0% average FPS lead across 29 shared CPU game tests in our data. Pentium III 1133 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2000 platform. Even with 100.0% better value on paper (0.2 vs 0.0 PassMark/$), 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?

Atom Z510 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2008 vs 2000) 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.

Atom Z510 vs Pentium III 1133 Technical Specifications

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

Atom Z510

The Atom Z510 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. Base frequency is 1.1 GHz, with boost up to 1.1 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2 Watt. Passmark benchmark score: 185 points. Launch price was $20.

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.

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Processing Power

Both the Atom Z510 and Pentium III 1133 share an identical 1-core/1-thread configuration. Boost clocks reach 1.1 GHz on the Atom Z510 versus 1.13 GHz on the Pentium III 1133 — a 2.7% clock advantage for the Pentium III 1133. The Atom Z510 uses the Silverthorne (2008−2010) architecture (45 nm), while the Pentium III 1133 uses Tualatin (2000−2002) (180 nm). In PassMark, the Atom Z510 scores 185 against the Pentium III 1133's 180 — a 2.7% lead for the Atom Z510. Both processors carry 0 kB of L3 cache.

Feature	Atom Z510	Pentium III 1133
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.1 GHz	1.13 GHz+3%
Base Clock	1.1 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512 kB+100%	256 kB
Process	45 nm-75%	180 nm
Architecture	Silverthorne (2008−2010)	Tualatin (2000−2002)
PassMark	185+3%	180

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Memory & Platform

The Atom Z510 uses the PBGA441 socket (PCIe 2.0), while the Pentium III 1133 uses PGA370 (PCIe 1.1) — making them incompatible on the same motherboard.