Atom Z550 vs Pentium M 765
Aggregate performance score
Atom Z550 outperforms Pentium M 765 by a moderate 10% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3473 | 3459 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Pentium M | Intel Atom |
| Power efficiency | 1.02 | 9.83 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Dothan (2004−2005) | Silverthorne (2008−2010) |
| Release date | 20 October 2004 (21 years ago) | 8 April 2009 (16 years ago) |
Detailed specifications
Pentium M 765 and Atom Z550 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 | 2.1 GHz | 2 GHz |
| Boost clock speed | 2.1 GHz | 2 GHz |
| Bus type | no data | FSB |
| Bus rate | 400 MHz | 533.33 MT/s |
| Multiplier | no data | 15 |
| L1 cache | 32 KB | 56 KB (per core) |
| L2 cache | 2 MB | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 90 nm | 45 nm |
| Die size | 87 mm2 | 26 mm2 |
| Maximum core temperature | 100 °C | 90 °C |
| Number of transistors | 144 million | 47 million |
| 64 bit support | - | - |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.988-1.356V | no data |
Compatibility
Information on Pentium M 765 and Atom Z550 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 | PPGA478, H-PBGA479 | PBGA441 |
| Power consumption (TDP) | 7.5 Watt | 2.4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium M 765 and Atom Z550. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | - | - |
| Hyper-Threading Technology | - | + |
| Idle States | - | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | - | + |
| PAE | 32 Bit | no data |
| FSB parity | - | - |
Security technologies
Pentium M 765 and Atom Z550 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium M 765 and Atom Z550 are enumerated here.
| VT-d | no data | - |
| VT-x | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium M 765 and Atom Z550. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | unknown |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | On certain motherboards (Chipset feature) |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Pros & cons summary
| Performance score | 0.20 | 0.22 |
| Recency | 20 October 2004 | 8 April 2009 |
| Threads | 1 | 2 |
| Chip lithography | 90 nm | 45 nm |
| Power consumption (TDP) | 7 Watt | 2 Watt |
Atom Z550 has a 10% higher aggregate performance score, an age advantage of 4 years, 100% more threads, a 100% more advanced lithography process, and 250% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Intel Pentium M 765 and Intel Atom Z550.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
