Atom Z620 vs Core 2 Duo E6420
Primary details
Comparing Core 2 Duo E6420 and Atom Z620 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 Atom |
| Architecture codename | Conroe (2006−2007) | Lincroft (2010−2011) |
| Release date | April 2007 (17 years ago) | 4 May 2010 (14 years ago) |
Detailed specifications
Core 2 Duo E6420 and Atom Z620 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 | 2 (Dual-core) | 1 (Single-Core) |
| Threads | 2 | 1 |
| Base clock speed | 2.13 GHz | no data |
| Boost clock speed | 2.13 GHz | 0.9 GHz |
| Bus type | no data | cDMI |
| Bus rate | 1066 MHz | 400 MT/s |
| Multiplier | no data | 9 |
| L1 cache | 64 KB | 64K (per core) |
| L2 cache | 4 MB | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 45 nm |
| Die size | 111 mm2 | 65.2526 mm2 |
| Maximum core temperature | 60 °C | no data |
| Number of transistors | 167 million | 140 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.5V | no data |
Compatibility
Information on Core 2 Duo E6420 and Atom Z620 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 | PLGA775 | Intel BGA 518 |
| Power consumption (TDP) | 65 Watt | 1.3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo E6420 and Atom Z620. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
Security technologies
Core 2 Duo E6420 and Atom Z620 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 2 Duo E6420 and Atom Z620 are enumerated here.
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo E6420 and Atom Z620. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR1, DDR2 |
| Maximum memory size | no data | 2 GB |
| Max memory channels | no data | 1 |
| Maximum memory bandwidth | no data | 3.2 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | PowerVR SGX535 |
Pros & cons summary
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 65 Watt | 1 Watt |
Core 2 Duo E6420 has 100% more physical cores and 100% more threads.
Atom Z620, on the other hand, has a 44.4% more advanced lithography process, and 6400% lower power consumption.
We couldn't decide between Core 2 Duo E6420 and Atom Z620. We've got no test results to judge.
Note that Core 2 Duo E6420 is a desktop processor while Atom Z620 is a notebook one.
Should you still have questions on choice between Core 2 Duo E6420 and Atom Z620, ask them in Comments section, and we shall answer.
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