CPU
GPU
Celeron Dual-Core T3100
Phenom X3 8400
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 Dual-Core T3100 is positioned at rank 711 and the Phenom X3 8400 is on rank 509, so the Phenom X3 8400 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron Dual-Core T3100
Performance Per Dollar Phenom X3 8400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron Dual-Core T3100 | Phenom X3 8400 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Penryn (2008−2011) / 45 nm) | 🛑 Legacy (Toliman (2008) / 65 nm) |
💎 Value Proposition
| Insight | Celeron Dual-Core T3100 | Phenom X3 8400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Dual-Core T3100 and Phenom X3 8400
Celeron Dual-Core T3100
The Celeron Dual-Core T3100 is manufactured by Intel. It was released in 2007-01-01. It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Max frequency: 1.9 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,174 points. Launch price was $69.
Phenom X3 8400
The Phenom X3 8400 is manufactured by AMD. It was released in 2009-01-01. It is based on the Toliman (2008) architecture. It features 3 cores and 3 threads. Max frequency: 2.1 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 95 Watt. Passmark benchmark score: 1,164 points. Launch price was $149.
Processing Power
The Celeron Dual-Core T3100 packs 2 cores / 2 threads, while the Phenom X3 8400 offers 3 cores / 3 threads — the Phenom X3 8400 has 1 more core. Boost clocks reach 1.9 GHz on the Celeron Dual-Core T3100 versus 2.1 GHz on the Phenom X3 8400 — a 10% clock advantage for the Phenom X3 8400. The Celeron Dual-Core T3100 uses the Penryn (2008−2011) architecture (45 nm), while the Phenom X3 8400 uses Toliman (2008) (65 nm). In PassMark, the Celeron Dual-Core T3100 scores 1,174 against the Phenom X3 8400's 1,164 — a 0.9% lead for the Celeron Dual-Core T3100.
| Feature | Celeron Dual-Core T3100 | Phenom X3 8400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 3 / 3+50% |
| Boost Clock | 1.9 GHz | 2.1 GHz+11% |
| L3 Cache | — | 2 MB (total) |
| L2 Cache | 1 MB+100% | 512 kB (per core) |
| Process | 45 nm-31% | 65 nm |
| Architecture | Penryn (2008−2011) | Toliman (2008) |
| PassMark | 1,174 | 1,164 |
Memory & Platform
The Celeron Dual-Core T3100 uses the PGA478 socket (PCIe 1.1), while the Phenom X3 8400 uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Celeron Dual-Core T3100 | Phenom X3 8400 |
|---|---|---|
| Socket | PGA478 | AM2+ |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR3-800 | — |
| Max RAM Capacity | 8 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: No (Celeron Dual-Core T3100) / not specified (Phenom X3 8400). Primary use case: Celeron Dual-Core T3100 targets Budget. Direct competitor: Celeron Dual-Core T3100 rivals Pentium T4200.
| Feature | Celeron Dual-Core T3100 | Phenom X3 8400 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | No | — |
| Target Use | Budget | — |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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