Core i7-8086K vs Core 2 Extreme QX9775
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 1020 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 4.17 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | Intel Core i7 |
| Power efficiency | no data | 3.56 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Yorkfield (2007−2009) | Coffee Lake-S (2017−2018) |
| Release date | 24 March 2008 (17 years ago) | 5 June 2018 (7 years ago) |
| Launch price (MSRP) | $1,499 | $425 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Core 2 Extreme QX9775 and Core i7-8086K 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 | 4 | 12 |
| Base clock speed | 3.2 GHz | 4 GHz |
| Boost clock speed | 3.2 GHz | 5 GHz |
| Bus type | no data | DMI 3.0 |
| Bus rate | 1600 MHz | 4 × 8 GT/s |
| Multiplier | no data | 40 |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 6 MB (per die) | 256K (per core) |
| L3 cache | 0 KB | 12 MB (shared) |
| Chip lithography | 45 nm | 14 nm |
| Die size | 2x 107 mm2 | 149 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 63 °C | 72 °C |
| Number of transistors | 820 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | + |
| VID voltage range | 0.85V-1.35V | no data |
Compatibility
Information on Core 2 Extreme QX9775 and Core i7-8086K 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 | 2 | 1 (Uniprocessor) |
| Socket | LGA771 | 1151 |
| Power consumption (TDP) | 150 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme QX9775 and Core i7-8086K. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| TSX | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
Security technologies
Core 2 Extreme QX9775 and Core i7-8086K technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme QX9775 and Core i7-8086K are enumerated here.
| AMD-V | - | + |
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9775 and Core i7-8086K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3, DDR4 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 42.671 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel UHD Graphics 630 |
| Max video memory | no data | 64 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.2 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Core 2 Extreme QX9775 and Core i7-8086K integrated GPUs.
| Number of displays supported | no data | 3 |
Graphics image quality
Maximum display resolutions supported by Core 2 Extreme QX9775 and Core i7-8086K integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096 x 2304@24Hz |
| Max resolution over eDP | no data | 4096 x 2304@60Hz |
| Max resolution over DisplayPort | no data | 4096 x 2304@60Hz |
Graphics API support
APIs supported by Core 2 Extreme QX9775 and Core i7-8086K integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme QX9775 and Core i7-8086K.
| PCIe version | 1.0 | 3.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Recency | 24 March 2008 | 5 June 2018 |
| Physical cores | 4 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 150 Watt | 95 Watt |
i7-8086K has an age advantage of 10 years, 50% more physical cores and 200% more threads, a 221.4% more advanced lithography process, and 57.9% lower power consumption.
We couldn't decide between Intel Core 2 Extreme QX9775 and Intel Core i7-8086K. We've got no test results to judge.
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