CPU
GPU
Phenom X3 8400
Celeron Dual-Core T3100
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 Phenom X3 8400 is positioned at rank 509 and the Celeron Dual-Core T3100 is on rank 711, 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 Phenom X3 8400
Performance Per Dollar Celeron Dual-Core T3100
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom X3 8400 | Celeron Dual-Core T3100 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Toliman (2008) / 65 nm) | 🛑 Legacy (Penryn (2008−2011) / 45 nm) |
💎 Value Proposition
| Insight | Phenom X3 8400 | Celeron Dual-Core T3100 |
|---|---|---|
| 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 Phenom X3 8400 and Celeron Dual-Core T3100
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.
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.
Processing Power
The Phenom X3 8400 packs 3 cores / 3 threads, while the Celeron Dual-Core T3100 offers 2 cores / 2 threads — the Phenom X3 8400 has 1 more core. Boost clocks reach 2.1 GHz on the Phenom X3 8400 versus 1.9 GHz on the Celeron Dual-Core T3100 — a 10% clock advantage for the Phenom X3 8400. The Phenom X3 8400 uses the Toliman (2008) architecture (65 nm), while the Celeron Dual-Core T3100 uses Penryn (2008−2011) (45 nm). In PassMark, the Phenom X3 8400 scores 1,164 against the Celeron Dual-Core T3100's 1,174 — a 0.9% lead for the Celeron Dual-Core T3100.
| Feature | Phenom X3 8400 | Celeron Dual-Core T3100 |
|---|---|---|
| Cores / Threads | 3 / 3+50% | 2 / 2 |
| Boost Clock | 2.1 GHz+11% | 1.9 GHz |
| L3 Cache | 2 MB (total) | — |
| L2 Cache | 512 kB (per core) | 1 MB+100% |
| Process | 65 nm | 45 nm-31% |
| Architecture | Toliman (2008) | Penryn (2008−2011) |
| PassMark | 1,164 | 1,174 |
Memory & Platform
The Phenom X3 8400 uses the AM2+ socket (PCIe 2.0), while the Celeron Dual-Core T3100 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Phenom X3 8400 | Celeron Dual-Core T3100 |
|---|---|---|
| Socket | AM2+ | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | — | DDR3-800 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 0 |
Advanced Features
Virtualization: not specified (Phenom X3 8400) / No (Celeron Dual-Core T3100). Primary use case: Celeron Dual-Core T3100 targets Budget. Direct competitor: Celeron Dual-Core T3100 rivals Pentium T4200.
| Feature | Phenom X3 8400 | Celeron Dual-Core T3100 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | No |
| Target Use | — | Budget |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Phenom X3 8400 and Celeron Dual-Core T3100
