Core 2 Duo E4400 vs Core i7-9700K
Core 2 Duo E4400
Core i7-9700K
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. The Core 2 Duo E4400 is positioned at rank #1001 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core 2 Duo E4400
Performance Per Dollar Core i7-9700K
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Duo E4400 | Core i7-9700K |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($20) | ⚠️ Higher cost ($200) |
| Longevity | 🛑 Legacy (Allendale (2006−2009) / 65 nm) | ✨ Modern (Coffee Lake-R (2018−2019) / 14 nm) |
💎 Value Proposition
| Insight | Core 2 Duo E4400 | Core i7-9700K |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+31%) |
| Upfront Cost | ✅ More affordable ($20) | ⚠️ Higher cost ($200) |
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 Core 2 Duo E4400 and Core i7-9700K
Core 2 Duo E4400
The Core 2 Duo E4400 is manufactured by Intel. It was released in 2008-01-01. 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: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,095 points. Launch price was $249.
Core i7-9700K
The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.
Processing Power
The Core 2 Duo E4400 packs 2 cores / 2 threads, while the Core i7-9700K offers 8 cores / 8 threads — the Core i7-9700K has 6 more cores. Boost clocks reach 2 GHz on the Core 2 Duo E4400 versus 4.9 GHz on the Core i7-9700K — a 84.1% clock advantage for the Core i7-9700K (base: 2 GHz vs 3.6 GHz). The Core 2 Duo E4400 uses the Allendale (2006−2009) architecture (65 nm), while the Core i7-9700K uses Coffee Lake-R (2018−2019) (14 nm). In PassMark, the Core 2 Duo E4400 scores 1,095 against the Core i7-9700K's 14,397 — a 171.7% lead for the Core i7-9700K. L3 cache: 0 kB on the Core 2 Duo E4400 vs 12 MB (total) on the Core i7-9700K.
| Feature | Core 2 Duo E4400 | Core i7-9700K |
|---|---|---|
| Cores / Threads | 2 / 2 | 8 / 8+300% |
| Boost Clock | 2 GHz | 4.9 GHz+145% |
| Base Clock | 2 GHz | 3.6 GHz+80% |
| L3 Cache | 0 kB | 12 MB (total) |
| L2 Cache | 2 MB+700% | 256K (per core) |
| Process | 65 nm | 14 nm-78% |
| Architecture | Allendale (2006−2009) | Coffee Lake-R (2018−2019) |
| PassMark | 1,095 | 14,397+1215% |
| Geekbench 6 Single | 208 | — |
Memory & Platform
The Core 2 Duo E4400 uses the LGA775 socket (PCIe 1.1), while the Core i7-9700K uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-1066 on the Core 2 Duo E4400 versus DDR4-2666 on the Core i7-9700K — the Core i7-9700K supports 66.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-9700K supports up to 128 GB of RAM compared to 16 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Core 2 Duo E4400) vs 16 (Core i7-9700K) — the Core i7-9700K offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: RS600,Q965 (Core 2 Duo E4400) and Intel 300 series (Core i7-9700K).
| Feature | Core 2 Duo E4400 | Core i7-9700K |
|---|---|---|
| Socket | LGA775 | LGA1151 |
| PCIe Generation | PCIe 1.1 | PCIe 3.0+173% |
| Max RAM Speed | DDR2-1066 | DDR4-2666+100% |
| Max RAM Capacity | 16 GB | 128 GB+700% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Only the Core i7-9700K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: None (Core 2 Duo E4400) vs VT-x, VT-d (Core i7-9700K). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Core 2 Duo E4400 requires a dedicated GPU. Primary use case: Core 2 Duo E4400 targets Budget, Core i7-9700K targets Desktop. Direct competitor: Core 2 Duo E4400 rivals Athlon II X2 240.
| Feature | Core 2 Duo E4400 | Core i7-9700K |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | UHD Graphics 630 |
| Unlocked | No | Yes |
| AVX-512 | No | No |
| Virtualization | None | VT-x, VT-d |
| Target Use | Budget | Desktop |
Value Analysis
The Core 2 Duo E4400 launched at $113 MSRP, while the Core i7-9700K debuted at $385. At current prices ($20 vs $200), the Core 2 Duo E4400 is $180 cheaper. In terms of value (PassMark points per dollar), the Core 2 Duo E4400 delivers 54.8 pts/$ vs 72.0 pts/$ for the Core i7-9700K — making the Core i7-9700K the 27.2% better value option.
| Feature | Core 2 Duo E4400 | Core i7-9700K |
|---|---|---|
| MSRP | $113-71% | $385 |
| Avg Price (30d) | $20-90% | $200 |
| Performance per Dollar | 54.8 | 72.0+31% |
| Release Date | 2007 | 2018 |
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