Atom E645CT vs Xeon E5450
Primary details
Comparing Xeon E5450 and Atom E645CT processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2081 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Power efficiency | 1.92 | no data |
| Architecture codename | no data | Stellarton (2010) |
| Release date | 1 October 2007 (17 years ago) | 22 November 2010 (14 years ago) |
Detailed specifications
Xeon E5450 and Atom E645CT 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 | no data | 1 (Single-Core) |
| Threads | no data | 2 |
| Base clock speed | 3 GHz | no data |
| Boost clock speed | no data | 1 GHz |
| L1 cache | no data | 64 KB (per core) |
| L2 cache | no data | 512 KB (per core) |
| L3 cache | 12 MB L2 Cache | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | no data | 26 mm2 |
| Maximum core temperature | 67 °C | no data |
| Number of transistors | no data | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | 0.85V-1.35V | no data |
Compatibility
Information on Xeon E5450 and Atom E645CT 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 | no data | 1 |
| Socket | LGA771 | Intel BGA1466 |
| Power consumption (TDP) | 80 Watt | 4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5450 and Atom E645CT. 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
Xeon E5450 and Atom E645CT 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 Xeon E5450 and Atom E645CT are enumerated here.
| VT-x | + | no data |
| EPT | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5450 and Atom E645CT. 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
| Recency | 1 October 2007 | 22 November 2010 |
| Power consumption (TDP) | 80 Watt | 4 Watt |
Atom E645CT has an age advantage of 3 years, and 1900% lower power consumption.
We couldn't decide between Xeon E5450 and Atom E645CT. We've got no test results to judge.
Be aware that Xeon E5450 is a server/workstation processor while Atom E645CT is a notebook one.
Should you still have questions on choice between Xeon E5450 and Atom E645CT, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
