Atom E640 vs Athlon X2 4450e
Primary details
Comparing Athlon X2 4450e and Atom E640 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Architecture codename | Brisbane (2001−2008) | Tunnel Creek (2010) |
| Release date | April 2008 (16 years ago) | 14 September 2010 (13 years ago) |
| Current price | $25 | no data |
Detailed specifications
Athlon X2 4450e 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 | 2 (Dual-core) | 1 (Single-Core) |
| Threads | 2 | 2 |
| Boost clock speed | 2.3 GHz | 1 GHz |
| L1 cache | 256 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 | 126 mm2 | 26 mm2 |
| Number of transistors | 154 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Athlon X2 4450e 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 | AM2 | Intel BGA 676 |
| Power consumption (TDP) | 45 Watt | 3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon X2 4450e 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 Athlon X2 4450e 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
| Physical cores | 2 | 1 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 45 Watt | 3 Watt |
We couldn't decide between Athlon X2 4450e and Atom E640. We've got no test results to judge.
Note that Athlon X2 4450e is a desktop processor while Atom E640 is a notebook one.
Should you still have questions on choice between Athlon X2 4450e and Atom E640, 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.
