
Pentium D 915 vs Celeron E1400

Pentium D 915

Celeron E1400
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 Pentium D 915 is positioned at rank 1002 and the Celeron E1400 is on rank 930, so the Celeron E1400 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium D 915
Performance Per Dollar Celeron E1400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium D 915 | Celeron E1400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($10) | ⚠️ Higher cost ($63) |
| Longevity | 🛑 Legacy (NetBurst (2000−2006) / 65 nm) | 🛑 Legacy (Allendale (2006−2009) / 65 nm) |
💎 Value Proposition
| Insight | Pentium D 915 | Celeron E1400 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+521%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($10) | ⚠️ Higher cost ($63) |
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 Pentium D 915 and Celeron E1400

Pentium D 915
The Pentium D 915 is manufactured by Intel. It was released in 23 July 2006 (19 years ago). It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 705 points. Launch price was $74.

Celeron E1400
The Celeron E1400 is manufactured by Intel. It was released in 20 April 2008 (17 years ago). It is based on the Allendale (2006−2009) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 715 points. Launch price was $57.
Processing Power
Both the Pentium D 915 and Celeron E1400 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium D 915 versus 2 GHz on the Celeron E1400 — a 33.3% clock advantage for the Pentium D 915 (base: 2.8 GHz vs 2 GHz). The Pentium D 915 uses the NetBurst (2000−2006) architecture (65 nm), while the Celeron E1400 uses Allendale (2006−2009) (65 nm). In PassMark, the Pentium D 915 scores 705 against the Celeron E1400's 715 — a 1.4% lead for the Celeron E1400. Both processors carry 0 kB of L3 cache.
| Feature | Pentium D 915 | Celeron E1400 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.8 GHz+40% | 2 GHz |
| Base Clock | 2.8 GHz+40% | 2 GHz |
| L3 Cache | 0 kB | 0 kB |
| L2 Cache | 2 MB (total)+300% | 512 kB (total) |
| Process | 65 nm | 65 nm |
| Architecture | NetBurst (2000−2006) | Allendale (2006−2009) |
| PassMark | 705 | 715+1% |
| Geekbench 6 Single | — | 260 |
| Geekbench 6 Multi | — | 470 |
Memory & Platform
Both processors use the LGA775 socket with PCIe 1.1.
| Feature | Pentium D 915 | Celeron E1400 |
|---|---|---|
| Socket | LGA775 | LGA775 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | — | DDR2-800 |
| Max RAM Capacity | — | 8 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 0 |
Advanced Features
Virtualization: not specified (Pentium D 915) / No (Celeron E1400). Primary use case: Celeron E1400 targets Budget. Direct competitor: Celeron E1400 rivals Pentium E2180.
| Feature | Pentium D 915 | Celeron E1400 |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | No |
| Target Use | — | Budget |
Value Analysis
The Pentium D 915 launched at $74 MSRP, while the Celeron E1400 debuted at $53. At current prices ($10 vs $63), the Pentium D 915 is $53 cheaper. In terms of value (PassMark points per dollar), the Pentium D 915 delivers 70.5 pts/$ vs 11.3 pts/$ for the Celeron E1400 — making the Pentium D 915 the 144.5% better value option.
| Feature | Pentium D 915 | Celeron E1400 |
|---|---|---|
| MSRP | $74 | $53-28% |
| Avg Price (30d) | $10-84% | $63 |
| Performance per Dollar | 70.5+524% | 11.3 |
| Release Date | 2006 | 2008 |
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