Atom Z2420 vs Core 2 Extreme QX9775
Primary details
Comparing Core 2 Extreme QX9775 and Atom Z2420 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 |
| Architecture codename | Yorkfield (2007−2009) | Saltwell (2013) |
| Release date | March 2008 (16 years ago) | 1 January 2013 (11 years ago) |
Detailed specifications
Core 2 Extreme QX9775 and Atom Z2420 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) | 1 (Single-Core) |
| Threads | 4 | 2 |
| Base clock speed | 3.2 GHz | no data |
| Boost clock speed | 3.2 GHz | 1.2 GHz |
| Bus rate | 1600 MHz | no data |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 12 MB (shared) | 512K (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 32 nm |
| Die size | 2x 107 mm2 | 65 mm2 |
| Maximum core temperature | no data | 90 °C |
| Maximum case temperature (TCase) | 63 °C | no data |
| Number of transistors | 820 million | 140 million |
| 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 Atom Z2420 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 | FC-MB4617 |
| Power consumption (TDP) | 150 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme QX9775 and Atom Z2420. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE, Intel® SSE2, Intel® SSE3 |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | + |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Demand Based Switching | - | no data |
| PAE | no data | 32 Bit |
| GPIO | no data | 152 |
| FSB parity | - | no data |
Security technologies
Core 2 Extreme QX9775 and Atom Z2420 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme QX9775 and Atom Z2420 are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9775 and Atom Z2420. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR2 |
| Maximum memory size | no data | 1 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 6.4 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | PowerVR SGX540 (400 MHz) |
Graphics interfaces
Available interfaces and connections of Core 2 Extreme QX9775 and Atom Z2420 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme QX9775 and Atom Z2420.
| USB revision | no data | 2.0 OTG |
| Number of USB ports | no data | 1 |
| UART | no data | 3 |
Pros & cons summary
| Physical cores | 4 | 1 |
| Threads | 4 | 2 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 150 Watt | 3 Watt |
Core 2 Extreme QX9775 has 300% more physical cores and 100% more threads.
Atom Z2420, on the other hand, has a 40.6% more advanced lithography process, and 4900% lower power consumption.
We couldn't decide between Core 2 Extreme QX9775 and Atom Z2420. We've got no test results to judge.
Note that Core 2 Extreme QX9775 is a desktop processor while Atom Z2420 is a notebook one.
Should you still have questions on choice between Core 2 Extreme QX9775 and Atom Z2420, ask them in Comments section, and we shall answer.
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