
Celeron M U3400

Pentium 997
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 Pentium 997 is on rank 1104, so the Celeron M U3400 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 Pentium 997
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Celeron M U3400 | Pentium 997 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($5) | ⚠️ Higher cost ($10) |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Celeron M U3400 | Pentium 997 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+98%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($5) | ⚠️ Higher cost ($10) |
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 Pentium 997

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.

Pentium 997
The Pentium 997 is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 1,215 points. Launch price was $134.
Processing Power
Both the Celeron M U3400 and Pentium 997 share an identical 2-core/2-thread configuration. Boost clocks reach 1.06 GHz on the Celeron M U3400 versus 1.6 GHz on the Pentium 997 — a 40.6% clock advantage for the Pentium 997. The Celeron M U3400 uses the Arrandale (2010−2011) architecture (32 nm), while the Pentium 997 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron M U3400 scores 1,205 against the Pentium 997's 1,215 — a 0.8% lead for the Pentium 997. L3 cache: 2 MB on the Celeron M U3400 vs 2 MB (total) on the Pentium 997.
| Feature | Celeron M U3400 | Pentium 997 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 1.06 GHz | 1.6 GHz+51% |
| Base Clock | — | 1.6 GHz |
| L3 Cache | 2 MB | 2 MB (total) |
| L2 Cache | 512 kB+100% | 256K (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Arrandale (2010−2011) | Sandy Bridge (2011−2013) |
| PassMark | 1,205 | 1,215 |
Memory & Platform
The Celeron M U3400 uses the BGA1288 socket (PCIe 2.0), while the Pentium 997 uses BGA1023 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Celeron M U3400 | Pentium 997 |
|---|---|---|
| Socket | BGA1288 | BGA1023 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
Value Analysis
The Celeron M U3400 launched at $86 MSRP, while the Pentium 997 debuted at $134. At current prices ($5 vs $10), the Celeron M U3400 is $5 cheaper. In terms of value (PassMark points per dollar), the Celeron M U3400 delivers 241.0 pts/$ vs 121.5 pts/$ for the Pentium 997 — making the Celeron M U3400 the 65.9% better value option.
| Feature | Celeron M U3400 | Pentium 997 |
|---|---|---|
| MSRP | $86-36% | $134 |
| Avg Price (30d) | $5-50% | $10 |
| Performance per Dollar | 241.0+98% | 121.5 |
| Release Date | 2010 | 2012 |
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