
Celeron M U3400 vs Phenom X3 8450e

Celeron M U3400

Phenom X3 8450e
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 M U3400 is positioned at rank 998 and the Phenom X3 8450e is on rank 498, so the Phenom X3 8450e offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Celeron M U3400
Performance Per Dollar Phenom X3 8450e
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron M U3400 | Phenom X3 8450e |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($5) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Toliman (2008) / 65 nm) |
💎 Value Proposition
| Insight | Celeron M U3400 | Phenom X3 8450e |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($5) | ✅ More affordable ($0) |
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 M U3400 and Phenom X3 8450e

Celeron M U3400
The Celeron M U3400 is manufactured by Intel. It was released in 2007-01-01. It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 2 threads. Max frequency: 1.06 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 512 kB + 2 MB. Memory support: DDR3. Passmark benchmark score: 1,205 points. Launch price was $69.

Phenom X3 8450e
The Phenom X3 8450e 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): 65 Watt. Passmark benchmark score: 1,206 points. Launch price was $149.
Processing Power
The Celeron M U3400 packs 2 cores / 2 threads, while the Phenom X3 8450e offers 3 cores / 3 threads — the Phenom X3 8450e has 1 more core. Boost clocks reach 1.06 GHz on the Celeron M U3400 versus 2.1 GHz on the Phenom X3 8450e — a 65.8% clock advantage for the Phenom X3 8450e. The Celeron M U3400 uses the Arrandale (2010−2011) architecture (32 nm), while the Phenom X3 8450e uses Toliman (2008) (65 nm). In PassMark, the Celeron M U3400 scores 1,205 against the Phenom X3 8450e's 1,206 — a 0.1% lead for the Phenom X3 8450e. L3 cache: 2 MB on the Celeron M U3400 vs 2 MB (total) on the Phenom X3 8450e.
| Feature | Celeron M U3400 | Phenom X3 8450e |
|---|---|---|
| Cores / Threads | 2 / 2 | 3 / 3+50% |
| Boost Clock | 1.06 GHz | 2.1 GHz+98% |
| L3 Cache | 2 MB | 2 MB (total) |
| L2 Cache | 512 kB | 512 kB (per core) |
| Process | 32 nm-51% | 65 nm |
| Architecture | Arrandale (2010−2011) | Toliman (2008) |
| PassMark | 1,205 | 1,206 |
Memory & Platform
The Celeron M U3400 uses the BGA1288 socket (PCIe 2.0), while the Phenom X3 8450e uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Celeron M U3400 | Phenom X3 8450e |
|---|---|---|
| Socket | BGA1288 | AM2+ |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
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