
Celeron 420 vs Core Solo T1400

Celeron 420

Core Solo T1400
Performance Spectrum - CPU
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.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Celeron 420 is positioned at rank 982 and the Core Solo T1400 is on rank 1236, so the Celeron 420 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron 420
Performance Per Dollar Core Solo T1400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron 420 | Core Solo T1400 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($5) |
| Longevity | 🛑 Legacy (Conroe-L (2007−2008) / 65 nm) | 🛑 Legacy (Yonah (2005−2006) / 65 nm) |
💎 Value Proposition
| Insight | Celeron 420 | Core Solo T1400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+202%) |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ More affordable ($5) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Celeron 420 and Core Solo T1400

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.
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 |
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 | ❌ | — |
| PCIe Lanes | 0 | — |
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 | — |
Value Analysis
The Celeron 420 launched at $39 MSRP, while the Core Solo T1400 debuted at $200. At current prices ($15 vs $5), the Core Solo T1400 is $10 cheaper. In terms of value (PassMark points per dollar), the Celeron 420 delivers 28.3 pts/$ vs 85.6 pts/$ for the Core Solo T1400 — making the Core Solo T1400 the 100.5% better value option.
| Feature | Celeron 420 | Core Solo T1400 |
|---|---|---|
| MSRP | $39-81% | $200 |
| Avg Price (30d) | $15 | $5-67% |
| Performance per Dollar | 28.3 | 85.6+202% |
| Release Date | 2007 | 2006 |
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