Celeron 420 vs Core Solo T1400

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 Core Solo T1400 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 Core Solo T1400: 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

✅Costs $161 less on MSRP ($39 MSRP vs $200 MSRP).
✅Delivers 409.2% more PassMark for each dollar spent, at 10.9 vs 2.1 PassMark/$ ($39 MSRP vs $200 MSRP).

Trade-offs

❌Lower PassMark (425 vs 428).
❌1650% higher power demand at 35W vs 2W.

Core Solo T1400

2006

Why buy it

✅Draws 2W instead of 35W, a 33W reduction.

Trade-offs

❌Lower PassMark per dollar, at 2.1 vs 10.9 PassMark/$ ($200 MSRP vs $39 MSRP).

Quick Answers

So, is Core Solo T1400 better than Celeron 420?

Yes. Core Solo T1400 is the better all-around CPU here. It gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data and 0.7% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core Solo T1400 is the better pick. According to our tests, it delivers 0.2% 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, Core Solo T1400 is the stronger fit. You are getting 0.7% better PassMark, backed by 1 cores and 1 threads.

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

Core Solo T1400 is still the much better call for a fresh build. Core Solo T1400 comes in 412.8% more expensive on MSRP at $200 MSRP versus $39 MSRP, and it still gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data. Celeron 420 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2007 platform. Even with 409.2% better value on paper (10.9 vs 2.1 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA775.

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 2006). That makes it the safer long-term bet.

Celeron 420 vs Core Solo T1400 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.

Core Solo T1400

The Core Solo T1400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Yonah (2005−2006) architecture. It features 1 cores and 1 threads. Base frequency is 1.83 GHz, with boost up to 1.83 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 27 Watt. Memory support: DDR1. Passmark benchmark score: 428 points. Launch price was $249.

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Processing Power

Both the Celeron 420 and Core Solo T1400 share an identical 1-core/1-thread configuration. Boost clocks reach 1.6 GHz on the Celeron 420 versus 1.83 GHz on the Core Solo T1400 — a 13.4% clock advantage for the Core Solo T1400 (base: 1.6 GHz vs 1.83 GHz). The Celeron 420 uses the Conroe-L (2007−2008) architecture (65 nm), while the Core Solo T1400 uses Yonah (2005−2006) (65 nm). In PassMark, the Celeron 420 scores 425 against the Core Solo T1400's 428 — a 0.7% lead for the Core Solo T1400. Both processors carry 0 kB of L3 cache.

Feature	Celeron 420	Core Solo T1400
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.6 GHz	1.83 GHz+14%
Base Clock	1.6 GHz	1.83 GHz+14%
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (total)	2 MB+300%
Process	65 nm	65 nm
Architecture	Conroe-L (2007−2008)	Yonah (2005−2006)
PassMark	425	428

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Memory & Platform

The Celeron 420 uses the LGA775 socket (PCIe 1.1), while the Core Solo T1400 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Celeron 420	Core Solo T1400
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 (Core Solo T1400). Primary use case: Celeron 420 targets Budget. Direct competitor: Celeron 420 rivals Pentium 4 2.80.

Feature	Celeron 420	Core Solo T1400
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 Core Solo T1400 came in at $200. On launch pricing ($39 vs $200), Celeron 420 was $161 cheaper. In terms of value on MSRP (PassMark points per dollar), the Celeron 420 delivers 10.9 pts/$ vs 2.1 pts/$ for the Core Solo T1400 — making the Celeron 420 the 134.3% better value option.

Feature	Celeron 420	Core Solo T1400
MSRP	$39-81%	$200
Performance per Dollar	10.9+419%	2.1
Release Date	2007	2006

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