Core i3-1215U vs Xeon D-1521
Aggregate performance score
i3-1215U outperforms Xeon D-1521 by an impressive 92% based on our aggregate benchmark results.
Primary details
Comparing Xeon D-1521 and Core i3-1215U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1440 | 956 |
| Place by popularity | not in top-100 | 20 |
| Cost-effectiveness evaluation | 0.15 | no data |
| Market segment | Server | Laptop |
| Series | Intel Xeon D | Intel Alder Lake-M |
| Architecture codename | Broadwell (2015−2019) | Alder Lake-U (2022) |
| Release date | 1 November 2015 (8 years ago) | 4 January 2022 (2 years ago) |
| Launch price (MSRP) | $199 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon D-1521 and Core i3-1215U 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) | 6 (Hexa-Core) |
| Threads | 8 | 8 |
| Base clock speed | 2.4 GHz | 1.2 GHz |
| Boost clock speed | 2.4 GHz | 4.4 GHz |
| L1 cache | 256 KB | 544 KB |
| L2 cache | 1 MB | 5 MB |
| L3 cache | 6 MB | 10 MB |
| Chip lithography | 14 nm | 10 nm |
| Die size | 246.24 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 80 °C | no data |
| Number of transistors | 3200 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Xeon D-1521 and Core i3-1215U 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 | Intel BGA 1667 | BGA1744 |
| Power consumption (TDP) | 45 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-1521 and Core i3-1215U. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | no data | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | + | + |
Security technologies
Xeon D-1521 and Core i3-1215U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon D-1521 and Core i3-1215U are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon D-1521 and Core i3-1215U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR4 Dual-channel | DDR4, DDR5 |
| 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 | Intel UHD Graphics 64EUs (Alder Lake 12th Gen) |
Peripherals
Specifications and connection of peripherals supported by Xeon D-1521 and Core i3-1215U.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 24 | 20 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Core i3-1215U outperforms Xeon D-1521 by 92% based on our aggregate benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Core i3-1215U outperforms Xeon D-1521 by 92% in Passmark.
Pros & cons summary
| Performance score | 3.68 | 7.08 |
| Recency | 1 November 2015 | 4 January 2022 |
| Physical cores | 4 | 6 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 45 Watt | 15 Watt |
i3-1215U has a 92.4% higher aggregate performance score, an age advantage of 6 years, 50% more physical cores, a 40% more advanced lithography process, and 200% lower power consumption.
The Core i3-1215U is our recommended choice as it beats the Xeon D-1521 in performance tests.
Be aware that Xeon D-1521 is a server/workstation processor while Core i3-1215U is a notebook one.
Should you still have questions on choice between Xeon D-1521 and Core i3-1215U, ask them in Comments section, and we shall answer.
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