i7-3970X Extreme Edition vs i7-6900K
Aggregate performance score
Core i7-6900K outperforms Core i7-3970X Extreme Edition by an impressive 57% based on our aggregate benchmark results.
Primary details
Comparing Core i7-6900K and Core i7-3970X Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 842 | 1129 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.04 | no data |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Intel Core i7EE |
| Power efficiency | 6.15 | 3.66 |
| Architecture codename | Broadwell-E (2016) | Sandy Bridge (2011−2013) |
| Release date | 31 May 2016 (8 years ago) | 12 November 2012 (12 years ago) |
| Launch price (MSRP) | $1,020 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-6900K and Core i7-3970X 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 | 8 (Octa-Core) | 6 (Hexa-Core) |
| Threads | 16 | 12 |
| Base clock speed | 3.2 GHz | no data |
| Boost clock speed | 4 GHz | 3.5 GHz |
| Bus type | no data | DMI 2.0 |
| Bus rate | no data | 5 GT/s |
| Multiplier | no data | 35 |
| L1 cache | 32 KB (per core) | no data |
| L2 cache | 256 KB (per core) | 1,536 KB |
| L3 cache | 20 MB (shared) | 15 MB |
| Chip lithography | 14 nm | 32 nm |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-6900K and Core i7-3970X 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 | FCLGA2011 | no data |
| Power consumption (TDP) | 140 Watt | 150 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-6900K and Core i7-3970X Extreme Edition. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Smart Response | + | no data |
| Turbo Boost Max 3.0 | + | no data |
Security technologies
Core i7-6900K and Core i7-3970X Extreme Edition 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 i7-6900K and Core i7-3970X Extreme Edition are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-6900K and Core i7-3970X Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | no data |
| Maximum memory size | 128 GB | 64 GB |
| Max memory channels | 4 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-6900K and Core i7-3970X Extreme Edition.
| PCIe version | 3.0 | 2.00 |
| PCI Express lanes | 40 | 40 |
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.
3DMark Fire Strike Physics
Pros & cons summary
| Performance score | 9.11 | 5.81 |
| Recency | 31 May 2016 | 12 November 2012 |
| Physical cores | 8 | 6 |
| Threads | 16 | 12 |
| Chip lithography | 14 nm | 32 nm |
| Power consumption (TDP) | 140 Watt | 150 Watt |
i7-6900K has a 56.8% higher aggregate performance score, an age advantage of 3 years, 33.3% more physical cores and 33.3% more threads, a 128.6% more advanced lithography process, and 7.1% lower power consumption.
The Core i7-6900K is our recommended choice as it beats the Core i7-3970X Extreme Edition in performance tests.
Should you still have questions on choice between Core i7-6900K and Core i7-3970X Extreme Edition, ask them in Comments section, and we shall answer.
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