Core i7-660UE vs Core 2 Extreme QX6800
Contents
Primary details
Comparing 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 | Laptop |
| Series | no data | Intel Core i7 |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Kentsfield (2007) | Arrandale (2010−2011) |
| Release date | April 2007 (18 years ago) | 2 August 2010 (15 years ago) |
| Launch price (MSRP) | no data | $301 |
Detailed specifications
Core 2 Extreme QX6800 and Core i7-660UE 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) | 2 (Dual-core) |
| Threads | 4 | 4 |
| Base clock speed | 2.93 GHz | 1.33 GHz |
| Boost clock speed | 2.93 GHz | 2.4 GHz |
| Bus type | no data | DMI 1.0 |
| Bus rate | 1066 MHz | 1 × 2.5 GT/s |
| Multiplier | no data | 10 |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 8 MB (shared) | 256 KB (per core) |
| L3 cache | 0 KB | 4 MB (shared) |
| Chip lithography | 65 nm | 32 nm |
| Die size | 2x 143 mm2 | 81 mm2 |
| Maximum core temperature | 65 °C | 105 °C |
| Number of transistors | 582 million | 382 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
| VID voltage range | 0.85V-1.5V | no data |
Compatibility
Information on Core 2 Extreme QX6800 and Core i7-660UE 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 | LGA775 | BGA1288 |
| Power consumption (TDP) | 130 Watt | 18 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme QX6800 and Core i7-660UE. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | - | + |
| FMA | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | 1.0 |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | - | no data |
| PAE | no data | 36 Bit |
| FDI | no data | + |
| Fast Memory Access | no data | + |
| FSB parity | - | no data |
Security technologies
Core 2 Extreme QX6800 and Core i7-660UE technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme QX6800 and Core i7-660UE are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX6800 and Core i7-660UE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3-800 |
| Maximum memory size | no data | 8.79 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 12.799 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics for Previous Generation Intel Processors |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 500 MHz |
Graphics interfaces
Available interfaces and connections of Core 2 Extreme QX6800 and Core i7-660UE integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme QX6800 and Core i7-660UE.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Physical cores | 4 | 2 |
| Chip lithography | 65 nm | 32 nm |
| Power consumption (TDP) | 130 Watt | 18 Watt |
Core 2 Extreme QX6800 has 100% more physical cores.
i7-660UE, on the other hand, has a 103.1% more advanced lithography process, and 622.2% lower power consumption.
We couldn't decide between Intel Core 2 Extreme QX6800 and Intel Core i7-660UE. We've got no test results to judge.
Note that Core 2 Extreme QX6800 is a desktop processor while Core i7-660UE is a notebook one.
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