Core i5-9400F vs Core 2 Duo E4400
Primary details
Comparing Core 2 Duo E4400 and Core i5-9400F processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 1021 |
| Place by popularity | not in top-100 | 29 |
| Cost-effectiveness evaluation | no data | 17.63 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Intel Core i5 |
| Architecture codename | Allendale (2006−2009) | Coffee Lake-R (2018−2019) |
| Release date | July 2007 (17 years ago) | 8 January 2019 (5 years ago) |
| Launch price (MSRP) | no data | $182 |
| Current price | $52 | $127 (0.7x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core 2 Duo E4400 and Core i5-9400F basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 2 (Dual-core) | 6 (Hexa-Core) |
| Threads | 2 | 6 |
| Base clock speed | 2 GHz | 2.9 GHz |
| Boost clock speed | 2 GHz | 4.1 GHz |
| L1 cache | 64 KB | 64K (per core) |
| L2 cache | 2 MB | 256K (per core) |
| L3 cache | 0 KB | 9 MB (shared) |
| Chip lithography | 65 nm | 14 nm |
| Die size | 111 mm2 | 149 mm2 |
| Maximum core temperature | L2=61 °C, M0=73 °C | 100 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 167 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | No |
| VID voltage range | 0.85V-1.5V | no data |
Compatibility
Information on Core 2 Duo E4400 and Core i5-9400F compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | LGA775 | FCLGA1151 |
| Power consumption (TDP) | 65 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo E4400 and Core i5-9400F. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | - |
| TSX | no data | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| SIPP | no data | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
| Status | Discontinued | Discontinued |
Security technologies
Core 2 Duo E4400 and Core i5-9400F technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
| Secure Key | no data | + |
| MPX | no data | + |
| Identity Protection | no data | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo E4400 and Core i5-9400F are enumerated here.
| VT-d | no data | + |
| VT-x | - | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E4400 and Core i5-9400F. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4-2666 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 41.6 GB/s |
| ECC memory support | no data | - |
Peripherals
Specifications and connection of peripherals supported by Core 2 Duo E4400 and Core i5-9400F.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Core i5-9400F outperforms Core 2 Duo E4400 by 1307% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Core i5-9400F outperforms Core 2 Duo E4400 by 476% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Core i5-9400F outperforms Core 2 Duo E4400 by 1030% in GeekBench 5 Multi-Core.
Pros & cons summary
| Physical cores | 2 | 6 |
| Threads | 2 | 6 |
| Chip lithography | 65 nm | 14 nm |
We couldn't decide between Core 2 Duo E4400 and Core i5-9400F. We've got no test results to judge.
Should you still have questions on choice between Core 2 Duo E4400 and Core i5-9400F, ask them in Comments section, and we shall answer.
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