
Core Solo T1400 vs Celeron 420

Core Solo T1400

Celeron 420
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 Core Solo T1400 is positioned at rank 1236 and the Celeron 420 is on rank 982, 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 Core Solo T1400
Performance Per Dollar Celeron 420
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core Solo T1400 | Celeron 420 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($5) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Yonah (2005−2006) / 65 nm) | 🛑 Legacy (Conroe-L (2007−2008) / 65 nm) |
💎 Value Proposition
| Insight | Core Solo T1400 | Celeron 420 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+202%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($5) | ⚠️ Higher cost ($15) |
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 Core Solo T1400 and Celeron 420

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.

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.
Processing Power
Both the Core Solo T1400 and Celeron 420 share an identical 1-core/1-thread configuration. Boost clocks reach 1.83 GHz on the Core Solo T1400 versus 1.6 GHz on the Celeron 420 — a 13.4% clock advantage for the Core Solo T1400 (base: 1.83 GHz vs 1.6 GHz). The Core Solo T1400 uses the Yonah (2005−2006) architecture (65 nm), while the Celeron 420 uses Conroe-L (2007−2008) (65 nm). In PassMark, the Core Solo T1400 scores 428 against the Celeron 420's 425 — a 0.7% lead for the Core Solo T1400. Both processors carry 0 kB of L3 cache.
| Feature | Core Solo T1400 | Celeron 420 |
|---|---|---|
| Cores / Threads | 1 / 1 | 1 / 1 |
| Boost Clock | 1.83 GHz+14% | 1.6 GHz |
| Base Clock | 1.83 GHz+14% | 1.6 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 2 MB+300% | 512 kB (total) |
| Process | 65 nm | 65 nm |
| Architecture | Yonah (2005−2006) | Conroe-L (2007−2008) |
| PassMark | 428 | 425 |
Memory & Platform
The Core Solo T1400 uses the PGA478 socket (PCIe 1.1), while the Celeron 420 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Core Solo T1400 | Celeron 420 |
|---|---|---|
| Socket | PGA478 | LGA775 |
| 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: not specified (Core Solo T1400) / No (Celeron 420). Primary use case: Celeron 420 targets Budget. Direct competitor: Celeron 420 rivals Pentium 4 2.80.
| Feature | Core Solo T1400 | Celeron 420 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | No |
| Target Use | — | Budget |
Value Analysis
The Core Solo T1400 launched at $200 MSRP, while the Celeron 420 debuted at $39. At current prices ($5 vs $15), the Core Solo T1400 is $10 cheaper. In terms of value (PassMark points per dollar), the Core Solo T1400 delivers 85.6 pts/$ vs 28.3 pts/$ for the Celeron 420 — making the Core Solo T1400 the 100.5% better value option.
| Feature | Core Solo T1400 | Celeron 420 |
|---|---|---|
| MSRP | $200 | $39-81% |
| Avg Price (30d) | $5-67% | $15 |
| Performance per Dollar | 85.6+202% | 28.3 |
| Release Date | 2006 | 2007 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.











