EPYC 7451 vs Xeon W-2155
Aggregated performance score
EPYC 7451 outperforms Xeon W-2155 by 23% based on our aggregated benchmark results.
General info
Comparing Xeon W-2155 and EPYC 7451 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 484 | 342 |
| Place by popularity | not in top-100 | not in top-100 |
| Value for money | 20.73 | 2.36 |
| Market segment | Server | Server |
| Series | Intel Xeon W | AMD EPYC |
| Architecture codename | Skylake (server) (2017−2019) | Naples (2017−2018) |
| Release date | 29 August 2017 (6 years ago) | 29 June 2017 (6 years ago) |
| Launch price (MSRP) | $1,440 | $2,400 |
| Current price | $430 (0.3x MSRP) | $2768 (1.2x MSRP) |
Value for money
Performance per price, higher is better.
Xeon W-2155 has 778% better value for money than EPYC 7451.
Technical specs
Xeon W-2155 and EPYC 7451 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 | 10 (Deca-Core) | 24 (Tetracosa-Core) |
| Threads | 20 | 48 |
| Base clock speed | 3.3 GHz | 2.3 GHz |
| Boost clock speed | 4.5 GHz | 3.2 GHz |
| Bus support | 4 × 8 GT/s | no data |
| L1 cache | 64K (per core) | 96K (per core) |
| L2 cache | 1 MB (per core) | 512K (per core) |
| L3 cache | 13.75 MB (shared) | 64 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 484 mm2 | 192 mm2 |
| Maximum core temperature | 68 °C | no data |
| Maximum case temperature (TCase) | 68 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Xeon W-2155 and EPYC 7451 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 | 2 (Multiprocessor) |
| Socket | FCLGA2066 | TR4 |
| Power consumption (TDP) | 140 Watt | 180 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-2155 and EPYC 7451. 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 | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | no data |
| Flex Memory Access | - | no data |
| Demand Based Switching | + | no data |
| PAE | 46 Bit | no data |
| Turbo Boost Max 3.0 | - | no data |
| Status | Discontinued | no data |
Security technologies
Xeon W-2155 and EPYC 7451 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| MPX | + | no data |
| Identity Protection | + | no data |
| SGX | - | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-2155 and EPYC 7451 are enumerated here.
| AMD-V | no data | + |
| 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-2155 and EPYC 7451. 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 | 85.3 GB/s | 170.671 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon W-2155 and EPYC 7451.
| 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.
EPYC 7451 outperforms Xeon W-2155 by 23% based on our aggregated 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%
EPYC 7451 outperforms Xeon W-2155 by 23% in Passmark.
Advantages and disadvantages
| Performance score | 13.60 | 16.73 |
| Recency | 29 August 2017 | 29 June 2017 |
| Physical cores | 10 | 24 |
| Threads | 20 | 48 |
| Cost | $1440 | $2400 |
| Power consumption (TDP) | 140 Watt | 180 Watt |
The EPYC 7451 is our recommended choice as it beats the Xeon W-2155 in performance tests.
Should you still have questions on choice between Xeon W-2155 and EPYC 7451, ask them in Comments section, and we shall answer.
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