EPYC 9655P vs EPYC 7662
Primary details
Comparing EPYC 7662 and EPYC 9655P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 42 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | AMD EPYC | no data |
| Power efficiency | 19.15 | no data |
| Architecture codename | Zen 2 (2017−2020) | Turin (2024) |
| Release date | 19 February 2020 (4 years ago) | 10 October 2024 (recently) |
| Launch price (MSRP) | no data | $10,811 |
Detailed specifications
EPYC 7662 and EPYC 9655P 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 | 64 (Tetrahexaconta-Core) | 96 |
| Threads | 128 | 192 |
| Base clock speed | 2 GHz | 2.6 GHz |
| Boost clock speed | 3.3 GHz | 4.5 GHz |
| Multiplier | 20 | no data |
| L1 cache | 4 MB | 80 KB (per core) |
| L2 cache | 32 MB | 1 MB (per core) |
| L3 cache | 256 MB | 384 MB (shared) |
| Chip lithography | 7 nm, 14 nm | 4 nm |
| Die size | no data | 12x 70.6 mm2 |
| Number of transistors | no data | 99,780 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on EPYC 7662 and EPYC 9655P 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 | no data | 1 |
| Socket | Socket SP3 | SP5 |
| Power consumption (TDP) | 225 Watt | 400 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7662 and EPYC 9655P. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7662 and EPYC 9655P are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7662 and EPYC 9655P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5 |
| Maximum memory size | 4 TiB | no data |
| Max memory channels | 8 | no data |
| Maximum memory bandwidth | 204.763 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by EPYC 7662 and EPYC 9655P.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 19 February 2020 | 10 October 2024 |
| Physical cores | 64 | 96 |
| Threads | 128 | 192 |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 225 Watt | 400 Watt |
EPYC 7662 has 77.8% lower power consumption.
EPYC 9655P, on the other hand, has an age advantage of 4 years, 50% more physical cores and 50% more threads, and a 75% more advanced lithography process.
We couldn't decide between EPYC 7662 and EPYC 9655P. We've got no test results to judge.
Should you still have questions on choice between EPYC 7662 and EPYC 9655P, 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.
