Atom E640 vs Pentium III 1133
Primary details
Comparing Pentium III 1133 and Atom E640 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3251 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Power efficiency | 0.59 | no data |
| Architecture codename | Tualatin (2000−2002) | Tunnel Creek (2010) |
| Release date | July 2000 (24 years ago) | 14 September 2010 (14 years ago) |
Detailed specifications
Pentium III 1133 and Atom E640 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 |
| Boost clock speed | 1.13 GHz | 1 GHz |
| L1 cache | 8 KB | 64 KB (per core) |
| L2 cache | 256 KB | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 180 nm | 45 nm |
| Die size | 80 mm2 | 26 mm2 |
| Maximum case temperature (TCase) | 69 °C | no data |
| Number of transistors | 44 million | 47 million |
| 64 bit support | - | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Pentium III 1133 and Atom E640 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 | 370 | Intel BGA 676 |
| Power consumption (TDP) | 29 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium III 1133 and Atom E640. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium III 1133 and Atom E640. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | 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 | 180 nm | 45 nm |
| Power consumption (TDP) | 29 Watt | 3 Watt |
Atom E640 has 100% more threads, a 300% more advanced lithography process, and 866.7% lower power consumption.
We couldn't decide between Pentium III 1133 and Atom E640. We've got no test results to judge.
Note that Pentium III 1133 is a desktop processor while Atom E640 is a notebook one.
Should you still have questions on choice between Pentium III 1133 and Atom E640, ask them in Comments section, and we shall answer.
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