i7-620LE vs i9-7940X
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 557 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.30 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Intel Core i9 | Intel Core i7 |
| Power efficiency | 9.38 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Skylake (server) (2017−2018) | Arrandale (2010−2011) |
| Release date | 1 September 2017 (8 years ago) | 7 January 2010 (15 years ago) |
| Launch price (MSRP) | $1,399 | $247 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Core i9-7940X and Core i7-620LE 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 | 14 (Tetradeca-Core) | 2 (Dual-core) |
| Threads | 28 | 4 |
| Base clock speed | 3.1 GHz | 2 GHz |
| Boost clock speed | 4.4 GHz | 2 GHz |
| Bus type | DMI 3.0 | DMI 1.0 |
| Bus rate | 4 × 8 GT/s | 1 × 2.5 GT/s |
| Multiplier | no data | 15 |
| L1 cache | 64 KB (per core) | 128 KB |
| L2 cache | 1 MB (per core) | 512 KB |
| L3 cache | 19.25 MB (shared) | 4 MB (shared) |
| Chip lithography | 14 nm | 32 nm |
| Die size | 484 mm2 | 81 mm2 |
| Maximum core temperature | 102 °C | no data |
| Number of transistors | no data | 382 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-7940X and Core i7-620LE 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 (Uniprocessor) |
| Socket | FCLGA2066 | Intel BGA 1288 |
| Power consumption (TDP) | 165 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-7940X and Core i7-620LE. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | - |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Turbo Boost Max 3.0 | + | no data |
Security technologies
Core i9-7940X and Core i7-620LE 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 i9-7940X and Core i7-620LE are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-7940X and Core i7-620LE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR3-1066 |
| Maximum memory size | 128 GB | 8 GB |
| Max memory channels | 4 | 2 |
| Maximum memory bandwidth | 85.33 GB/s | 17.051 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel HD Graphics (Ironlake) |
Peripherals
Specifications and connection of peripherals supported by Core i9-7940X and Core i7-620LE.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 44 | 16 |
Pros & cons summary
| Recency | 1 September 2017 | 7 January 2010 |
| Physical cores | 14 | 2 |
| Threads | 28 | 4 |
| Chip lithography | 14 nm | 32 nm |
| Power consumption (TDP) | 165 Watt | 25 Watt |
i9-7940X has an age advantage of 7 years, 600% more physical cores and 600% more threads, and a 128.6% more advanced lithography process.
i7-620LE, on the other hand, has 560% lower power consumption.
We couldn't decide between Intel Core i9-7940X and Intel Core i7-620LE. We've got no test results to judge.
Note that Core i9-7940X is a desktop processor while Core i7-620LE is a notebook one.
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