Ryzen 5 8400F vs i7-660LM
Primary details
Comparing Core i7-660LM and Ryzen 5 8400F processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 467 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 61.40 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i7 | no data |
| Power efficiency | no data | 21.66 |
| Architecture codename | Arrandale (2010−2011) | Phoenix (2023−2024) |
| Release date | 13 September 2010 (14 years ago) | 1 April 2024 (less than a year ago) |
| Launch price (MSRP) | $346 | $170 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-660LM and Ryzen 5 8400F 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 | 2.26 GHz | 4.2 GHz |
| Boost clock speed | 3.06 GHz | 4.7 GHz |
| Bus type | DMI 1.0 | no data |
| Bus rate | 1 × 2.5 GT/s | no data |
| Multiplier | 17 | no data |
| L1 cache | 128 KB | 64 KB (per core) |
| L2 cache | 512 KB | 1 MB (per core) |
| L3 cache | 4 MB | 16 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 81+177 mm2 | 178 mm2 |
| Maximum core temperature | 105 °C | no data |
| Number of transistors | 382+177 Million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Core i7-660LM and Ryzen 5 8400F 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 | AM5 |
| Power consumption (TDP) | 25 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-660LM and Ryzen 5 8400F. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | - | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | + | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| PAE | 36 Bit | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Core i7-660LM and Ryzen 5 8400F technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-660LM and Ryzen 5 8400F are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-660LM and Ryzen 5 8400F. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-800, DDR3-1066 | DDR5 |
| Maximum memory size | 8 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 17.051 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for Previous Generation Intel® Processors | N/A |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 566 MHz | no data |
Graphics interfaces
Available interfaces and connections of Core i7-660LM and Ryzen 5 8400F integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-660LM and Ryzen 5 8400F.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | 16 | 20 |
Pros & cons summary
| Recency | 13 September 2010 | 1 April 2024 |
| Physical cores | 2 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 25 Watt | 65 Watt |
i7-660LM has 160% lower power consumption.
Ryzen 5 8400F, on the other hand, has an age advantage of 13 years, 200% more physical cores and 200% more threads, and a 700% more advanced lithography process.
We couldn't decide between Core i7-660LM and Ryzen 5 8400F. We've got no test results to judge.
Be aware that Core i7-660LM is a notebook processor while Ryzen 5 8400F is a desktop one.
Should you still have questions on choice between Core i7-660LM and Ryzen 5 8400F, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
