Atom Z520PT vs Xeon D-1520
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1932 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.60 | no data |
| Market segment | Server | Laptop |
| Series | Intel Xeon D | Intel Atom |
| Power efficiency | 2.63 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Broadwell (2015−2019) | Silverthorne (2008−2010) |
| Release date | 9 March 2015 (10 years ago) | 2 March 2009 (16 years ago) |
| Launch price (MSRP) | $199 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon D-1520 and Atom Z520PT 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 | 2.2 GHz | 1.33 GHz |
| Boost clock speed | 2.6 GHz | 1.33 GHz |
| Bus type | DMI 2.0 | FSB |
| Bus rate | no data | 533.33 MT/s |
| Multiplier | 22 | 10 |
| L1 cache | 64K (per core) | 56 KB (per core) |
| L2 cache | 256K (per core) | 512 KB (per core) |
| L3 cache | 1.5 MB (per core) | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | 246.24 mm2 | 26 mm2 |
| Maximum core temperature | no data | 90 °C |
| Maximum case temperature (TCase) | 80 °C | no data |
| Number of transistors | 3,200 million | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.9V-1.1V |
Compatibility
Information on Xeon D-1520 and Atom Z520PT 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 (Uniprocessor) |
| Socket | FCBGA1667 | FCBGA437,PBGA441 |
| Power consumption (TDP) | 45 Watt | 2.2 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-1520 and Atom Z520PT. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2 | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| AES-NI | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | + | + |
| TSX | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Demand Based Switching | no data | - |
| GPIO | + | no data |
| FSB parity | no data | - |
Security technologies
Xeon D-1520 and Atom Z520PT technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon D-1520 and Atom Z520PT are enumerated here.
| VT-d | + | - |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon D-1520 and Atom Z520PT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | unknown |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 34.124 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Xeon D-1520 and Atom Z520PT.
| PCIe version | 2.0/3.0 | no data |
| PCI Express lanes | 24 | no data |
| USB revision | 2.0/3.0 | no data |
| Total number of SATA ports | 6 | no data |
| Number of USB ports | 8 | no data |
| Integrated LAN | + | no data |
| UART | + | no data |
Pros & cons summary
| Recency | 9 March 2015 | 2 March 2009 |
| Physical cores | 4 | 1 |
| Threads | 8 | 2 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 45 Watt | 2 Watt |
Xeon D-1520 has an age advantage of 6 years, 300% more physical cores and 300% more threads, and a 221.4% more advanced lithography process.
Atom Z520PT, on the other hand, has 2150% lower power consumption.
We couldn't decide between Intel Xeon D-1520 and Intel Atom Z520PT. We've got no test results to judge.
Be aware that Xeon D-1520 is a server/workstation processor while Atom Z520PT is a notebook one.
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