Core i5-12400T vs Core i7-640M
Aggregate performance score
i5-12400T outperforms i7-640M by a whopping 680% based on our aggregate benchmark results.
Primary details
Comparing Core i7-640M and Core i5-12400T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2205 | 727 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i7 | no data |
| Architecture codename | Arrandale (2010−2011) | Alder Lake-S (2022) |
| Release date | 13 September 2010 (13 years ago) | January 2022 (2 years ago) |
| Launch price (MSRP) | $346 | no data |
Detailed specifications
Core i7-640M and Core i5-12400T 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 | 4 | 12 |
| Base clock speed | 2.8 GHz | 1.8 GHz |
| Boost clock speed | 2.8 GHz | 4.2 GHz |
| Bus type | DMI 1.0 | no data |
| Bus rate | 1 × 2.5 GT/s | no data |
| Multiplier | 21 | no data |
| L1 cache | 128 KB | 80K (per core) |
| L2 cache | 512 KB | 1.25 MB (per core) |
| L3 cache | 4 MB | 18 MB (shared) |
| Chip lithography | 32 nm | 10 nm |
| Die size | 81+114 mm2 | 163 mm2 |
| Maximum core temperature | 105 °C | no data |
| Number of transistors | 382+177 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-640M and Core i5-12400T 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 (Uniprocessor) | 1 |
| Socket | BGA1288, PGA988 | 1700 |
| Power consumption (TDP) | 35 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-640M and Core i5-12400T. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | no data |
| AVX | no data | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | + | no data |
| Hyper-Threading Technology | + | no data |
| TSX | no data | + |
Security technologies
Core i7-640M and Core i5-12400T technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-640M and Core i5-12400T are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-640M and Core i5-12400T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4, DDR5 Dual-channel |
| Maximum memory size | 8 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 17.051 GB/s | 76.8 GB/s |
| ECC memory support | - | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics | Intel UHD Graphics 730 |
Peripherals
Specifications and connection of peripherals supported by Core i7-640M and Core i5-12400T.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | 16 | 20 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
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.
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.
Pros & cons summary
| Performance score | 1.34 | 10.45 |
| Physical cores | 2 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 32 nm | 10 nm |
i5-12400T has a 679.9% higher aggregate performance score, 200% more physical cores and 200% more threads, and a 220% more advanced lithography process.
The Core i5-12400T is our recommended choice as it beats the Core i7-640M in performance tests.
Be aware that Core i7-640M is a notebook processor while Core i5-12400T is a desktop one.
Should you still have questions on choice between Core i7-640M and Core i5-12400T, ask them in Comments section, and we shall answer.
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