EPYC 9655 vs Ryzen 9 7950X3D
Primary details
Comparing Ryzen 9 7950X3D and EPYC 9655 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 68 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 56.75 | no data |
| Market segment | Desktop processor | Server |
| Series | AMD Ryzen 9 | no data |
| Power efficiency | 30.87 | no data |
| Architecture codename | Raphael (Zen4) (2022−2023) | Turin (2024) |
| Release date | 4 January 2023 (1 year ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | $699 | $11,852 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 9 7950X3D and EPYC 9655 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 | 16 (Hexadeca-Core) | 96 |
| Threads | 32 | 192 |
| Base clock speed | 4.2 GHz | 2.6 GHz |
| Boost clock speed | 5.7 GHz | 4.5 GHz |
| Bus rate | 64K (per core) | no data |
| L1 cache | 64K (per core) | 80 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 128 MB (shared) | 384 MB (shared) |
| Chip lithography | 5 nm, 6 nm | 4 nm |
| Die size | 2x 71 mm2 | 12x 70.6 mm2 |
| Maximum core temperature | 89 °C | no data |
| Maximum case temperature (TCase) | 47 °C | no data |
| Number of transistors | 13,140 million | 99,780 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 7950X3D and EPYC 9655 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 |
| Socket | AM5 | SP5 |
| Power consumption (TDP) | 120 Watt | 400 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7950X3D and EPYC 9655. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3, SHA, XFR2, Precision Boost 2 | no data |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7950X3D and EPYC 9655 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7950X3D and EPYC 9655. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-5200 | DDR5 |
| Maximum memory size | 128 GB | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon Graphics (Ryzen 7000) (400 - 2200 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7950X3D and EPYC 9655.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 24 | 128 |
Pros & cons summary
| Recency | 4 January 2023 | 10 October 2024 |
| Physical cores | 16 | 96 |
| Threads | 32 | 192 |
| Chip lithography | 5 nm | 4 nm |
| Power consumption (TDP) | 120 Watt | 400 Watt |
Ryzen 9 7950X3D has 233.3% lower power consumption.
EPYC 9655, on the other hand, has an age advantage of 1 year, 500% more physical cores and 500% more threads, and a 25% more advanced lithography process.
We couldn't decide between Ryzen 9 7950X3D and EPYC 9655. We've got no test results to judge.
Note that Ryzen 9 7950X3D is a desktop processor while EPYC 9655 is a server/workstation one.
Should you still have questions on choice between Ryzen 9 7950X3D and EPYC 9655, ask them in Comments section, and we shall answer.
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