i7-975 Extreme Edition vs i7-3960X Extreme Edition
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1425 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Core i7EE | Intel Core i7EE |
| Power efficiency | 1.65 | no data |
| Designer | Intel | Intel |
| Architecture codename | Sandy Bridge (2011−2013) | Nehalem (2008−2010) |
| Release date | 14 November 2011 (14 years ago) | 2 June 2009 (16 years ago) |
Detailed specifications
Core i7-3960X Extreme Edition and Core i7-975 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 | 6 (Hexa-Core) | 4 (Quad-Core) |
| Threads | 12 | 8 |
| Boost clock speed | 3.3 GHz | 3.33 GHz |
| Bus type | DMI 2.0 | QPI |
| Bus rate | 5 GT/s | 6.4 GT/s |
| Multiplier | 33 | 25 |
| L2 cache | 1,536 KB | 1 MB |
| L3 cache | 15 MB | 8 MB |
| Chip lithography | 32 nm | 45 nm |
| Die size | 434.72 mm2 | 263 mm2 |
| Number of transistors | 2270 Million | 731 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core i7-3960X Extreme Edition and Core i7-975 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 (Uniprocessor) | 1 (Uniprocessor) |
| Power consumption (TDP) | 130 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-3960X Extreme Edition and Core i7-975 Extreme Edition. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-3960X Extreme Edition and Core i7-975 Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.
| Maximum memory size | 64 GB | 24 GB |
Peripherals
Specifications and connection of peripherals supported by Core i7-3960X Extreme Edition and Core i7-975 Extreme Edition.
| PCIe version | 2.00 | no data |
| PCI Express lanes | 40 | no data |
Pros & cons summary
| Recency | 14 November 2011 | 2 June 2009 |
| Physical cores | 6 | 4 |
| Threads | 12 | 8 |
| Chip lithography | 32 nm | 45 nm |
i7-3960X Extreme Edition has an age advantage of 2 years, 50% more physical cores and 50% more threads, and a 41% more advanced lithography process.
We couldn't decide between Intel Core i7-3960X Extreme Edition and Intel Core i7-975 Extreme Edition. We've got no test results to judge.
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