Atom Z620 vs Celeron 420
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3647 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Atom |
| Power efficiency | 0.16 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Conroe-L (2007−2008) | Lincroft (2010−2011) |
| Release date | 3 June 2007 (18 years ago) | 4 May 2010 (15 years ago) |
| Launch price (MSRP) | $23 | no data |
Detailed specifications
Celeron 420 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 | 1 (Single-Core) | 1 (Single-Core) |
| Threads | 1 | 1 |
| Base clock speed | 1.6 GHz | no data |
| Boost clock speed | 1.6 GHz | 0.9 GHz |
| Bus type | no data | cDMI |
| Bus rate | no data | 400 MT/s |
| Multiplier | no data | 9 |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (shared) | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 45 nm |
| Die size | 77 mm2 | 65.2526 mm2 |
| Maximum case temperature (TCase) | 60 °C | no data |
| Number of transistors | 105 million | 140 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | 1V-1.3375V | no data |
Compatibility
Information on Celeron 420 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 | LGA775 | Intel BGA 518 |
| Power consumption (TDP) | 35 Watt | 1 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron 420 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
Celeron 420 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 Celeron 420 and Atom Z620 are enumerated here.
| VT-d | - | no data |
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron 420 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 | On certain motherboards (Chipset feature) | PowerVR SGX535 |
Peripherals
Specifications and connection of peripherals supported by Celeron 420 and Atom Z620.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 3 June 2007 | 4 May 2010 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 35 Watt | 1 Watt |
Atom Z620 has an age advantage of 2 years, a 44% more advanced lithography process, and 3400% lower power consumption.
We couldn't decide between Intel Celeron 420 and Intel Atom Z620. We've got no test results to judge.
Note that Celeron 420 is a desktop processor while Atom Z620 is a notebook one.
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