Celeron N2840 vs Core 2 Extreme QX9775
Primary details
Comparing Core 2 Extreme QX9775 and Celeron N2840 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 Celeron |
| Architecture codename | Yorkfield (2007−2009) | Bay Trail-M (2013−2014) |
| Release date | March 2008 (16 years ago) | 22 May 2014 (10 years ago) |
Detailed specifications
Core 2 Extreme QX9775 and Celeron N2840 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 | 2 |
| Base clock speed | 3.2 GHz | 2.16 GHz |
| Boost clock speed | 3.2 GHz | 2.58 GHz |
| Bus rate | 1600 MHz | no data |
| L1 cache | 64K (per core) | 56K (per core) |
| L2 cache | 12 MB (shared) | 512K (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 22 nm |
| Die size | 2x 107 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 63 °C | no data |
| 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 Celeron N2840 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 |
| Socket | LGA771 | FCBGA1170 |
| Power consumption (TDP) | 150 Watt | 7.5 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme QX9775 and Celeron N2840. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | - |
| Idle States | + | + |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| Smart Connect | no data | + |
| FSB parity | - | no data |
Security technologies
Core 2 Extreme QX9775 and Celeron N2840 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | + |
| Secure Key | no data | + |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme QX9775 and Celeron N2840 are enumerated here.
| VT-d | no data | - |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9775 and Celeron N2840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
| Maximum memory size | no data | 8 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21.32 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for Intel Atom® Processor Z3700 Series |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 792 MHz |
Graphics interfaces
Available interfaces and connections of Core 2 Extreme QX9775 and Celeron N2840 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme QX9775 and Celeron N2840.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 4 |
| USB revision | no data | 3.0 and 2.0 |
| Total number of SATA ports | no data | 2 |
| Number of USB ports | no data | 5 |
Pros & cons summary
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Chip lithography | 45 nm | 22 nm |
| Power consumption (TDP) | 150 Watt | 7 Watt |
Core 2 Extreme QX9775 has 100% more physical cores and 100% more threads.
Celeron N2840, on the other hand, has a 104.5% more advanced lithography process, and 2042.9% lower power consumption.
We couldn't decide between Core 2 Extreme QX9775 and Celeron N2840. We've got no test results to judge.
Note that Core 2 Extreme QX9775 is a desktop processor while Celeron N2840 is a notebook one.
Should you still have questions on choice between Core 2 Extreme QX9775 and Celeron N2840, ask them in Comments section, and we shall answer.
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