Atom E660T vs Celeron 420
Primary details
Comparing Celeron 420 and Atom E660T 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 | Conroe-L (2007−2008) | Tunnel Creek (2010) |
| Release date | June 2007 (17 years ago) | 14 September 2010 (14 years ago) |
| Launch price (MSRP) | $23 | no data |
Detailed specifications
Celeron 420 and Atom E660T 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 | 2 |
| Base clock speed | 1.6 GHz | no data |
| Boost clock speed | 1.6 GHz | 1.3 GHz |
| L1 cache | 64 KB | 64 KB (per core) |
| L2 cache | 512 KB | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 65 nm | 45 nm |
| Die size | 77 mm2 | 26 mm2 |
| Maximum case temperature (TCase) | 60 °C | no data |
| Number of transistors | 105 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | 1V-1.3375V | no data |
Compatibility
Information on Celeron 420 and Atom E660T 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 | LGA775 | Intel BGA 676 |
| Power consumption (TDP) | 35 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron 420 and Atom E660T. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | - | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
Security technologies
Celeron 420 and Atom E660T 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 E660T 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 E660T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel GMA 600 |
Pros & cons summary
| Threads | 1 | 2 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 35 Watt | 3 Watt |
Atom E660T has 100% more threads, a 44.4% more advanced lithography process, and 1066.7% lower power consumption.
We couldn't decide between Celeron 420 and Atom E660T. We've got no test results to judge.
Note that Celeron 420 is a desktop processor while Atom E660T is a notebook one.
Should you still have questions on choice between Celeron 420 and Atom E660T, ask them in Comments section, and we shall answer.
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