Pentium III 1000B vs Atom x5-E3940
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2667 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | 5x Intel Atom | no data |
| Power efficiency | 11.04 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Apollo Lake (2014−2016) | Coppermine (1999−2001) |
| Release date | 30 August 2014 (11 years ago) | 8 March 2000 (25 years ago) |
| Launch price (MSRP) | no data | $990 |
Detailed specifications
Atom x5-E3940 and Pentium III 1000B 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 | 1 |
| Base clock speed | 1.6 GHz | no data |
| Boost clock speed | 1.8 GHz | 1 GHz |
| L1 cache | 56K (per core) | 32 KB |
| L2 cache | 2 MB (shared) | 256 KB |
| L3 cache | 0 KB | no data |
| Chip lithography | 14 nm | 180 nm |
| Die size | no data | 106 mm2 |
| Maximum case temperature (TCase) | 103 °C | 70 °C |
| Number of transistors | no data | 28 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Atom x5-E3940 and Pentium III 1000B 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 (Uniprocessor) | 2 |
| Socket | Intel BGA 1296 | Intel Slot 1 |
| Power consumption (TDP) | 10 Watt | 33 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom x5-E3940 and Pentium III 1000B. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| Enhanced SpeedStep (EIST) | + | no data |
Security technologies
Atom x5-E3940 and Pentium III 1000B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom x5-E3940 and Pentium III 1000B are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom x5-E3940 and Pentium III 1000B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | unknown Depends on motherboard |
| Maximum memory size | 8 GB | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 500 | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Atom x5-E3940 and Pentium III 1000B.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 4 | no data |
Pros & cons summary
| Recency | 30 August 2014 | 8 March 2000 |
| Physical cores | 4 | 1 |
| Threads | 4 | 1 |
| Chip lithography | 14 nm | 180 nm |
| Power consumption (TDP) | 10 Watt | 33 Watt |
Atom x5-E3940 has an age advantage of 14 years, 300% more physical cores and 300% more threads, a 1185.7% more advanced lithography process, and 230% lower power consumption.
We couldn't decide between Intel Atom x5-E3940 and Intel Pentium III 1000B. We've got no test results to judge.
Be aware that Atom x5-E3940 is a notebook processor while Pentium III 1000B is a desktop one.
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