EPYC 7251 vs Xeon W-2135
Aggregate performance score
EPYC 7251 outperforms Xeon W-2135 by a minimal 3% based on our aggregate benchmark results.
Primary details
Comparing Xeon W-2135 and EPYC 7251 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 837 | 806 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 6.95 | 2.82 |
| Market segment | Server | Server |
| Series | Intel Xeon W | AMD EPYC |
| Power efficiency | 6.15 | 7.41 |
| Architecture codename | Skylake (server) (2017−2018) | Naples (2017−2018) |
| Release date | 29 August 2017 (7 years ago) | 29 June 2017 (7 years ago) |
| Launch price (MSRP) | $835 | $574 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon W-2135 has 146% better value for money than EPYC 7251.
Detailed specifications
Xeon W-2135 and EPYC 7251 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 | 6 (Hexa-Core) | 8 (Octa-Core) |
| Threads | 12 | 16 |
| Base clock speed | 3.7 GHz | 2.1 GHz |
| Boost clock speed | 4.5 GHz | 2.9 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 37 | 21 |
| L1 cache | 64K (per core) | 96K (per core) |
| L2 cache | 1 MB (per core) | 512K (per core) |
| L3 cache | 8.25 MB (shared) | 32 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 484 mm2 | 192 mm2 |
| Maximum case temperature (TCase) | 64 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon W-2135 and EPYC 7251 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 (Multiprocessor) |
| Socket | FCLGA2066 | TR4 |
| Power consumption (TDP) | 140 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-2135 and EPYC 7251. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | - | no data |
| Demand Based Switching | + | no data |
| PAE | 46 Bit | no data |
| Turbo Boost Max 3.0 | - | no data |
Security technologies
Xeon W-2135 and EPYC 7251 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| MPX | + | - |
| Identity Protection | + | - |
| SGX | - | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-2135 and EPYC 7251 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon W-2135 and EPYC 7251. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666 | DDR4 Eight-channel |
| Maximum memory size | 512 GB | 2 TiB |
| Max memory channels | 4 | 8 |
| Maximum memory bandwidth | 85.33 GB/s | 153.652 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon W-2135 and EPYC 7251.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 48 | 128 |
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 | 9.10 | 9.40 |
| Recency | 29 August 2017 | 29 June 2017 |
| Physical cores | 6 | 8 |
| Threads | 12 | 16 |
| Power consumption (TDP) | 140 Watt | 120 Watt |
Xeon W-2135 has an age advantage of 2 months.
EPYC 7251, on the other hand, has a 3.3% higher aggregate performance score, 33.3% more physical cores and 33.3% more threads, and 16.7% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Xeon W-2135 and EPYC 7251.
Should you still have questions on choice between Xeon W-2135 and EPYC 7251, ask them in Comments section, and we shall answer.
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