Atom E645C vs Ryzen 5 1500X
Primary details
Comparing Ryzen 5 1500X and Atom E645C processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1139 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.10 | no data |
| Market segment | Desktop processor | Laptop |
| Series | AMD Ryzen 5 | no data |
| Power efficiency | 8.34 | no data |
| Architecture codename | Zen (2017−2020) | Stellarton (2010) |
| Release date | 11 April 2017 (7 years ago) | 22 November 2010 (14 years ago) |
| Launch price (MSRP) | $189 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 5 1500X and Atom E645C 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 | 8 | 2 |
| Base clock speed | 3.5 GHz | no data |
| Boost clock speed | 3.7 GHz | 1 GHz |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 35 | no data |
| L1 cache | 96K (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 512 KB (per core) |
| L3 cache | 16 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | 192 mm2 | 26 mm2 |
| Number of transistors | 4,800 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 5 1500X and Atom E645C 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) | 1 |
| Socket | AM4 | Intel BGA1466 |
| Power consumption (TDP) | 65 Watt | 4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 5 1500X and Atom E645C. You'll probably need this information if you require some particular technology.
| Instruction set extensions | XFR, FMA3, SSE 4.2, AVX2, SMT | no data |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 5 1500X and Atom E645C are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 5 1500X and Atom E645C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR2 |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 42.671 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | - | Intel GMA 600 |
Peripherals
Specifications and connection of peripherals supported by Ryzen 5 1500X and Atom E645C.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 20 | no data |
Pros & cons summary
| Recency | 11 April 2017 | 22 November 2010 |
| Physical cores | 4 | 1 |
| Threads | 8 | 2 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 65 Watt | 4 Watt |
Ryzen 5 1500X has an age advantage of 6 years, 300% more physical cores and 300% more threads, and a 221.4% more advanced lithography process.
Atom E645C, on the other hand, has 1525% lower power consumption.
We couldn't decide between Ryzen 5 1500X and Atom E645C. We've got no test results to judge.
Note that Ryzen 5 1500X is a desktop processor while Atom E645C is a notebook one.
Should you still have questions on choice between Ryzen 5 1500X and Atom E645C, 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.
