Ultra 5 245K vs Atom E640
Primary details
Comparing Atom E640 and Core Ultra 5 245K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 175 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 78.40 |
| Market segment | Laptop | Desktop processor |
| Power efficiency | no data | 20.82 |
| Architecture codename | Tunnel Creek (2010) | Arrow Lake-S (2024−2025) |
| Release date | 14 September 2010 (14 years ago) | 24 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $309 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Atom E640 and Core Ultra 5 245K 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) | 14 (Tetradeca-Core) |
| Threads | 2 | 14 |
| Base clock speed | no data | 4.2 GHz |
| Boost clock speed | 1 GHz | 5.2 GHz |
| Bus rate | no data | 159 MHz |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 512 KB (per core) | 3 MB (per core) |
| L3 cache | 0 KB | 24 MB (shared) |
| Chip lithography | 45 nm | 3 nm |
| Die size | 26 mm2 | 243 mm2 |
| Number of transistors | 47 million | 17,800 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Atom E640 and Core Ultra 5 245K 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 | Intel BGA 676 | 1851 |
| Power consumption (TDP) | 3 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E640 and Core Ultra 5 245K. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Hyper-Threading Technology | + | no data |
| TSX | - | + |
| SIPP | - | + |
Security technologies
Atom E640 and Core Ultra 5 245K technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom E640 and Core Ultra 5 245K are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom E640 and Core Ultra 5 245K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel GMA 600 | Arc Xe-LPG Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Atom E640 and Core Ultra 5 245K.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 14 September 2010 | 24 October 2024 |
| Physical cores | 1 | 14 |
| Threads | 2 | 14 |
| Chip lithography | 45 nm | 3 nm |
| Power consumption (TDP) | 3 Watt | 125 Watt |
Atom E640 has 4066.7% lower power consumption.
Ultra 5 245K, on the other hand, has an age advantage of 14 years, 1300% more physical cores and 600% more threads, and a 1400% more advanced lithography process.
We couldn't decide between Atom E640 and Core Ultra 5 245K. We've got no test results to judge.
Be aware that Atom E640 is a notebook processor while Core Ultra 5 245K is a desktop one.
Should you still have questions on choice between Atom E640 and Core Ultra 5 245K, 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.
