Xeon W-3335 vs D-1521
Aggregate performance score
Xeon W-3335 outperforms Xeon D-1521 by a whopping 590% based on our aggregate benchmark results.
Primary details
Comparing Xeon D-1521 and Xeon W-3335 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1503 | 197 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.46 | no data |
| Market segment | Server | Server |
| Series | Intel Xeon D | no data |
| Power efficiency | 7.54 | 9.37 |
| Architecture codename | Broadwell (2015−2019) | Ice Lake-W (2021) |
| Release date | 1 November 2015 (9 years ago) | 29 July 2021 (3 years ago) |
| Launch price (MSRP) | $199 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon D-1521 and Xeon W-3335 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) | 16 (Hexadeca-Core) |
| Threads | 8 | 32 |
| Base clock speed | 2.4 GHz | 3.4 GHz |
| Boost clock speed | 2.7 GHz | 4 GHz |
| Bus type | DMI 2.0 | no data |
| Bus rate | no data | 8 GT/s |
| Multiplier | 24 | no data |
| L1 cache | 256 KB | 64K (per core) |
| L2 cache | 1 MB | 1 MB (per core) |
| L3 cache | 6 MB | 24 MB (shared) |
| Chip lithography | 14 nm | 10 nm |
| Die size | 246.24 mm2 | no data |
| Maximum case temperature (TCase) | 80 °C | 78 °C |
| Number of transistors | 3200 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Xeon D-1521 and Xeon W-3335 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) | 2 |
| Socket | FCBGA1667 | FCLGA4189 |
| Power consumption (TDP) | 45 Watt | 250 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon D-1521 and Xeon W-3335. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2 | Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| GPIO | + | no data |
| Turbo Boost Max 3.0 | no data | - |
| Deep Learning Boost | - | + |
Security technologies
Xeon D-1521 and Xeon W-3335 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| SGX | no data | - |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon D-1521 and Xeon W-3335 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon D-1521 and Xeon W-3335. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR3 | DDR4-3200 |
| Maximum memory size | 128 GB | 4 TB |
| Max memory channels | 2 | 8 |
| Maximum memory bandwidth | 34.124 GB/s | no data |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon D-1521 and Xeon W-3335.
| PCIe version | 2.0/3.0 | 4 |
| PCI Express lanes | 24 | 64 |
| 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 |
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.
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.
Pros & cons summary
| Performance score | 3.72 | 25.68 |
| Recency | 1 November 2015 | 29 July 2021 |
| Physical cores | 4 | 16 |
| Threads | 8 | 32 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 45 Watt | 250 Watt |
Xeon D-1521 has 455.6% lower power consumption.
Xeon W-3335, on the other hand, has a 590.3% higher aggregate performance score, an age advantage of 5 years, 300% more physical cores and 300% more threads, and a 40% more advanced lithography process.
The Xeon W-3335 is our recommended choice as it beats the Xeon D-1521 in performance tests.
Should you still have questions on choice between Xeon D-1521 and Xeon W-3335, 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.
