Celeron 887E vs Xeon D-1521
Primary details
Comparing Xeon D-1521 and Celeron 887E processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1507 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.40 | no data |
| Market segment | Server | Laptop |
| Series | Intel Xeon D | Intel Celeron |
| Power efficiency | 7.53 | no data |
| Architecture codename | Broadwell (2015−2019) | Sandy Bridge (2011−2013) |
| Release date | 1 November 2015 (9 years ago) | no data (2024 years ago) |
| Launch price (MSRP) | $199 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon D-1521 and Celeron 887E 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) | 2 (Dual-core) |
| Threads | 8 | 2 |
| Base clock speed | 2.4 GHz | no data |
| Boost clock speed | 2.7 GHz | 1.5 GHz |
| Bus type | DMI 2.0 | DMI 2.0 |
| Bus rate | no data | 4 × 5 GT/s |
| Multiplier | 24 | 15 |
| L1 cache | 64K (per core) | 128 KB |
| L2 cache | 256K (per core) | 512 KB |
| L3 cache | 1.5 MB (per core) | 2 MB |
| Chip lithography | 14 nm | 32 nm |
| Die size | 246.24 mm2 | 131 mm2 |
| Maximum case temperature (TCase) | 80 °C | no data |
| Number of transistors | 3,200 million | 504 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon D-1521 and Celeron 887E 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 | no data |
| Power consumption (TDP) | 45 Watt | 17 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-1521 and Celeron 887E. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2 | no data |
| AES-NI | + | - |
| FMA | - | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| GPIO | + | no data |
Security technologies
Xeon D-1521 and Celeron 887E technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon D-1521 and Celeron 887E are enumerated here.
| VT-d | + | no data |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon D-1521 and Celeron 887E. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR3 | DDR3-1333 |
| Maximum memory size | 128 GB | 16 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 34.124 GB/s | 21.335 GB/s |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics (Sandy Bridge) |
Peripherals
Specifications and connection of peripherals supported by Xeon D-1521 and Celeron 887E.
| 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
| Physical cores | 4 | 2 |
| Threads | 8 | 2 |
| Chip lithography | 14 nm | 32 nm |
| Power consumption (TDP) | 45 Watt | 17 Watt |
Xeon D-1521 has 100% more physical cores and 300% more threads, and a 128.6% more advanced lithography process.
Celeron 887E, on the other hand, has 164.7% lower power consumption.
We couldn't decide between Xeon D-1521 and Celeron 887E. We've got no test results to judge.
Be aware that Xeon D-1521 is a server/workstation processor while Celeron 887E is a notebook one.
Should you still have questions on choice between Xeon D-1521 and Celeron 887E, ask them in Comments section, and we shall answer.
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