Celeron 420 vs Pentium 4 2.80

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.

Celeron 420 vs Pentium 4 2.80 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.

Celeron 420 vs Pentium 4 2.80: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Celeron 420

2007

Why buy it

✅Better for gaming: +9.6% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $288 less on MSRP ($39 MSRP vs $327 MSRP).
✅Delivers 773.4% more PassMark for each dollar spent, at 10.9 vs 1.2 PassMark/$ ($39 MSRP vs $327 MSRP).
✅Draws 35W instead of 110W, a 75W reduction.

Trade-offs

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

Pentium 4 2.80

2002

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Celeron 420 across 50 shared CPU benchmark tests.
❌Lower PassMark (408 vs 425).
❌Lower PassMark per dollar, at 1.2 vs 10.9 PassMark/$ ($327 MSRP vs $39 MSRP).
❌214.3% higher power demand at 110W vs 35W.

Quick Answers

So, is Celeron 420 better than Pentium 4 2.80?

Yes. Celeron 420 is the better all-around CPU here. It gives you a 9.6% average FPS lead across 50 shared CPU game tests in our data, 4.2% 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, Celeron 420 is the better pick. According to our tests, it delivers 9.6% 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, Celeron 420 is the stronger fit. You are getting 4.2% better PassMark, backed by 1 cores and 1 threads.

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

Celeron 420 is the better buy right now. Celeron 420 comes in $288 cheaper on MSRP at $39 MSRP versus $327 MSRP, and it still gives you a 9.6% average FPS lead across 50 shared CPU game tests in our data. It is also 773.4% better value on MSRP (10.9 vs 1.2 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 420 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2007 vs 2002) 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.

Celeron 420 vs Pentium 4 2.80 Technical Specifications

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

Celeron 420

The Celeron 420 is manufactured by Intel. It was released in 3 June 2007 (18 years ago). It is based on the Conroe-L (2007−2008) architecture. It features 1 cores and 1 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 0 kB. L2 cache: 512 kB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 35 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 425 points. Launch price was $23.

Pentium 4 2.80

The Pentium 4 2.80 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 1 cores and 1 threads. Max frequency: 2.79 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 110 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 408 points. Launch price was $69.

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Processing Power

Both the Celeron 420 and Pentium 4 2.80 share an identical 1-core/1-thread configuration. Boost clocks reach 1.6 GHz on the Celeron 420 versus 2.79 GHz on the Pentium 4 2.80 — a 54.2% clock advantage for the Pentium 4 2.80. The Celeron 420 uses the Conroe-L (2007−2008) architecture (65 nm), while the Pentium 4 2.80 uses NetBurst (2000−2006) (130 nm). In PassMark, the Celeron 420 scores 425 against the Pentium 4 2.80's 408 — a 4.1% lead for the Celeron 420. Both processors carry 0 kB of L3 cache.

Feature	Celeron 420	Pentium 4 2.80
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.6 GHz	2.79 GHz+74%
Base Clock	1.6 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (total)	512 kB
Process	65 nm-50%	130 nm
Architecture	Conroe-L (2007−2008)	NetBurst (2000−2006)
PassMark	425+4%	408

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Memory & Platform

The Celeron 420 uses the LGA775 socket (PCIe 1.1), while the Pentium 4 2.80 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Celeron 420	Pentium 4 2.80
Socket	LGA775	PGA478
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR2-800	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	0	—

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Advanced Features

Virtualization: No (Celeron 420) / not specified (Pentium 4 2.80). Primary use case: Celeron 420 targets Budget. Direct competitor: Celeron 420 rivals Pentium 4 2.80.

Feature	Celeron 420	Pentium 4 2.80
Integrated GPU	No	—
Unlocked	No	—
AVX-512	No	—
Virtualization	No	—
Target Use	Budget	—

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Value Analysis

At launch, the Celeron 420 was priced at $39, while the Pentium 4 2.80 came in at $327. On launch pricing ($39 vs $327), Celeron 420 was $288 cheaper. In terms of value on MSRP (PassMark points per dollar), the Celeron 420 delivers 10.9 pts/$ vs 1.2 pts/$ for the Pentium 4 2.80 — making the Celeron 420 the 158.9% better value option.

Feature	Celeron 420	Pentium 4 2.80
MSRP	$39-88%	$327
Performance per Dollar	10.9+808%	1.2
Release Date	2007	2002

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