EPYC 7542 vs EPYC 7261
Primary details
Comparing EPYC 7261 and EPYC 7542 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 156 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 5.53 |
| Market segment | Server | Server |
| Series | AMD EPYC | AMD EPYC |
| Architecture codename | Naples (2017−2018) | Zen 2 (2017−2020) |
| Release date | 14 June 2018 (6 years ago) | 7 August 2019 (5 years ago) |
| Launch price (MSRP) | no data | $3,400 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC 7261 and EPYC 7542 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 | 8 (Octa-Core) | 32 (Dotriaconta-Core) |
| Threads | 16 | 64 |
| Base clock speed | 2.5 GHz | 2.9 GHz |
| Boost clock speed | 2.5 GHz | 3.4 GHz |
| Multiplier | 25 | 29 |
| L1 cache | 768 KB | 2 MB |
| L2 cache | 4 MB | 16 MB |
| L3 cache | 64 MB | 128 MB (shared) |
| Chip lithography | 14 nm | 7 nm, 14 nm |
| Die size | 213 mm2 | 192 mm2 |
| Maximum case temperature (TCase) | 81 °C | no data |
| Number of transistors | 19200 Million | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | + |
Compatibility
Information on EPYC 7261 and EPYC 7542 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 | 2 (Multiprocessor) | 2 (Multiprocessor) |
| Socket | SP3 | SP3 |
| Power consumption (TDP) | 155 W, 170 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7261 and EPYC 7542. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7261 and EPYC 7542 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7261 and EPYC 7542. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4 Eight-channel |
| Maximum memory size | 2 TiB | 4 TiB |
| Max memory channels | 8 | 8 |
| Maximum memory bandwidth | 170.671 GB/s | 204.763 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by EPYC 7261 and EPYC 7542.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 128 | no data |
Pros & cons summary
| Recency | 14 June 2018 | 7 August 2019 |
| Physical cores | 8 | 32 |
| Threads | 16 | 64 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 155 Watt | 225 Watt |
EPYC 7261 has 45.2% lower power consumption.
EPYC 7542, on the other hand, has an age advantage of 1 year, 300% more physical cores and 300% more threads, and a 100% more advanced lithography process.
We couldn't decide between EPYC 7261 and EPYC 7542. We've got no test results to judge.
Should you still have questions on choice between EPYC 7261 and EPYC 7542, ask them in Comments section, and we shall answer.
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