Celeron 847 vs Atom Z2520
Primary details
Comparing Atom Z2520 and Celeron 847 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | no data | Intel Celeron |
| Architecture codename | Clovertrail (2013) | Sandy Bridge (2011−2013) |
| Release date | 27 February 2013 (11 years ago) | 19 June 2011 (13 years ago) |
| Launch price (MSRP) | no data | $134 |
Detailed specifications
Atom Z2520 and Celeron 847 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 1.2 GHz | 1.1 GHz |
| Boost clock speed | 1.2 GHz | 1.1 GHz |
| Bus type | no data | DMI 2.0 |
| Bus rate | no data | 4 × 5 GT/s |
| Multiplier | no data | 11 |
| L1 cache | 64 KB (per core) | 128 KB |
| L2 cache | 512 KB (per core) | 512 KB |
| L3 cache | 0 KB | 2 MB |
| Chip lithography | 32 nm | 32 nm |
| Die size | 65 mm2 | 131 mm2 |
| Maximum core temperature | 90 °C | 100 °C |
| Number of transistors | 140 million | 504 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Atom Z2520 and Celeron 847 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 | FC-MB4760 | FCBGA1023 |
| Power consumption (TDP) | 3 Watt | 17 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom Z2520 and Celeron 847. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE2, Intel® SSE3, Intel® SSSE3 | Intel® SSE4.1, Intel® SSE4.2 |
| FMA | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | no data | - |
| PAE | 32 Bit | no data |
| FDI | no data | + |
| Fast Memory Access | no data | + |
| Smart Idle | + | no data |
| Status | Discontinued | Discontinued |
Security technologies
Atom Z2520 and Celeron 847 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 Atom Z2520 and Celeron 847 are enumerated here.
| VT-d | no data | - |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom Z2520 and Celeron 847. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR3 |
| Maximum memory size | 2 GB | 16 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 8.5 GB/s | 21.335 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | SGX 544MP2 | Intel HD Graphics (Sandy Bridge) |
| Graphics max frequency | no data | 800 MHz |
Graphics interfaces
Available interfaces and connections of Atom Z2520 and Celeron 847 integrated GPUs.
| Number of displays supported | 2 | 2 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| SDVO | no data | + |
| CRT | no data | + |
Peripherals
Specifications and connection of peripherals supported by Atom Z2520 and Celeron 847.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 16 |
| USB revision | 2.0 OTG, USB-SPH 2.0 | no data |
| Number of USB ports | 2 | no data |
| UART | 3 | no data |
Pros & cons summary
| Recency | 27 February 2013 | 19 June 2011 |
| Threads | 4 | 2 |
| Power consumption (TDP) | 3 Watt | 17 Watt |
Atom Z2520 has an age advantage of 1 year, 100% more threads, and 466.7% lower power consumption.
We couldn't decide between Atom Z2520 and Celeron 847. We've got no test results to judge.
Should you still have questions on choice between Atom Z2520 and Celeron 847, 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.
