i7-990X Extreme Edition vs i7-7740K
Primary details
Comparing Core i7-7740K and Core i7-990X Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Intel Core i7EE |
| Architecture codename | Kaby Lake-X (2017) | Westmere (2010−2011) |
| Release date | no data | 13 February 2011 (13 years ago) |
Detailed specifications
Core i7-7740K and Core i7-990X Extreme Edition 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 | 4 (Quad-Core) | 6 (Hexa-Core) |
| Threads | no data | 12 |
| Boost clock speed | 4.3 GHz | 3.46 GHz |
| Bus type | no data | QPI |
| Bus rate | no data | 6.4 GT/s |
| Multiplier | no data | 26 |
| L1 cache | 64 KB (per core) | no data |
| L2 cache | 256 KB (per core) | 1.5 MB |
| L3 cache | 8192 KB (shared) | 12 MB |
| Chip lithography | 14 nm | 32 nm |
| Die size | no data | 239 mm2 |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-7740K and Core i7-990X Extreme Edition 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 (Uniprocessor) |
| Socket | 1151 | no data |
| Power consumption (TDP) | 112 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-7740K and Core i7-990X Extreme Edition. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | + | - |
Security technologies
Core i7-7740K and Core i7-990X Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-7740K and Core i7-990X Extreme Edition are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-7740K and Core i7-990X Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | no data |
| Maximum memory size | no data | 24 GB |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | HD 630 | no data |
Pros & cons summary
| Physical cores | 4 | 6 |
| Chip lithography | 14 nm | 32 nm |
| Power consumption (TDP) | 112 Watt | 130 Watt |
i7-7740K has a 128.6% more advanced lithography process, and 16.1% lower power consumption.
i7-990X Extreme Edition, on the other hand, has 50% more physical cores.
We couldn't decide between Core i7-7740K and Core i7-990X Extreme Edition. We've got no test results to judge.
Should you still have questions on choice between Core i7-7740K and Core i7-990X Extreme Edition, ask them in Comments section, and we shall answer.
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