Intel Core 2 Duo E7400 2-core LGA775
The provided specs are contradictory, listing modern features like DDR5 memory and a 4.3GHz boost clock that this legacy 45nm Core 2 Duo chip cannot support, making the listed PassMark score of 20507 impossible for its actual 2.8GHz base frequency. Its real-world strength lies in its unlocked multiplier on the LGA 775 socket, offering a low-cost entry point for overclocking experimentation on vintage systems. This processor is best for hobbyists maintaining legacy Windows XP or retro gaming rigs who need a direct, period-correct replacement part.
Cores 2
Threads 2
Boost Clock 4300 MHz
L3 Cache 3 MB
TDP 65 W
Socket LGA775
Integrated Graphics Radeon Graphics
70 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong efficiency (88th percentile) 88th
- Strong platform (87th percentile) 87th
- Strong feature (83rd percentile) 83rd
- Strong single thread (83rd percentile) 83rd
Cons
- Below average social proof (9th percentile)
The proof
Performance
Specifications
Full Specifications
Processor
| Brand | Intel |
| Series | Core 2 Duo |
| Model | E7400 |
| Codename | Raphael |
| Class | desktop |
| Process | 45 |
Cores & Clocks
| Cores | 2 |
| P-cores | 6 |
| Threads | 2 |
| Base Clock | 2800 |
| Boost Clock | 4300 |
Cache
| L2 Cache | 3 |
| L3 Cache | 3 MB |
Performance
| PassMark Multi | 21644 |
| PassMark Single | 3235 |
Memory
| Memory Type | DDR5 |
| Max Speed | 5200 |
| ECC | Yes |
Platform & Power
| Socket | LGA775 |
| PCIe | 5 |
| PCIe Lanes | 24 |
| TDP | 65 |
| Unlocked | Yes |
Graphics & AI
| Integrated Graphics | Radeon Graphics |
vs Competition
| Spec | Intel Core 2 Duo E7400 | AMD Ryzen 7 9800X3D | Dell Xeon E5-2637 V2 | SMC EPYC 9555P | CG CHIPS GATE EPYC 6GK7443-1EX30-0XE0 1PC New 6GK7443-1EX30-0XE0 Communications Processor | HP Xeon P67080-B21 |
|---|---|---|---|---|---|---|
| Cores | 2 | 8 | 32 | 64 | 24 | 16 |
| Threads | 2 | 16 | 64 | 128 | 48 | 32 |
| Boost Clock Mhz | 4300 | 5200 | 3500 | 4400 | 4000 | 3900 |
| L3 Cache Mb | 3 | 96 | 256 | 256 | 128 | 37.5 |
| Tdp W | 65 | 120 | 200 | 360 | 200 | 195 |
| Socket | LGA775 | AM5 | Socket A/Socket 462 (PGA 462) | AMD Socket SP5 | AMD Socket SP3 | LGA 4677 |
| Integrated Graphics | Radeon Graphics | AMD Radeon Graphics | No | - | - | No |
| Compare | Compare | Compare | Compare | Compare |
| Product | AI | Feature | Platform | Efficiency | Multi Thread | Social Proof | Single Thread |
|---|---|---|---|---|---|---|---|
| Intel Core 2 Duo E7400 | 77.1 | 83.3 | 87.2 | 87.7 | 77.9 | 9.1 | 83 |
| AMD Ryzen 7 9800X3D Compare | 91.2 | 98.4 | 95.1 | 87.5 | 90 | 96.5 | 95.6 |
| Dell Xeon E5-2637 V2 Compare | 99.1 | 90.7 | 76.2 | 97.3 | 99.2 | 1.5 | 89.3 |
| SMC EPYC 9555P Compare | 99.3 | 76.8 | 96.7 | 90.6 | 99.5 | 1.5 | 88.7 |
| CG CHIPS GATE EPYC 6GK7443-1EX30-0XE0 1PC New 6GK7443-1EX30-0XE0 Communications Processor Compare | 94.7 | 76.8 | 84 | 83.7 | 94.4 | 38.3 | 80.1 |
| HP Xeon P67080-B21 Compare | 91.7 | 76.8 | 90.6 | 78 | 90.8 | 1.5 | 80.3 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
