EPYC 7643P vs Ryzen 7 7800X3D
Primary details
Comparing Ryzen 7 7800X3D and EPYC 7643P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 214 | not rated |
| Place by popularity | 19 | not in top-100 |
| Cost-effectiveness evaluation | 37.50 | no data |
| Market segment | Desktop processor | Server |
| Architecture codename | Raphael (Zen4) | Milan (2021) |
| Release date | 4 January 2023 (1 year ago) | no data |
| Launch price (MSRP) | $449 | no data |
| Current price | $520 (1.2x MSRP) | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 7 7800X3D and EPYC 7643P 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) | 48 (Octatetraconta-Core) |
| Threads | 16 | 96 |
| Base clock speed | 4.4 GHz | 2.3 GHz |
| Boost clock speed | 5 GHz | 3.6 GHz |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 96 MB (shared) | 256 MB (shared) |
| Chip lithography | 5 nm | 7 nm |
| Die size | 71 mm2 | 8x 81 mm2 |
| Maximum core temperature | 89 °C | no data |
| Maximum case temperature (TCase) | 61 °C | no data |
| Number of transistors | 6,570 million | 33,200 million |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | Yes | No |
Compatibility
Information on Ryzen 7 7800X3D and EPYC 7643P 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 | 1 |
| Socket | AM5 | SP3 |
| Power consumption (TDP) | 120 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 7800X3D and EPYC 7643P. 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, AVX512, BMI1, BMI2, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT SHA, XFR2, Precision Boost 2 | no data |
| AES-NI | + | + |
| AVX | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 7800X3D and EPYC 7643P are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7800X3D and EPYC 7643P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-5200 | DDR4 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon Graphics (Ryzen 7000) | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 7800X3D and EPYC 7643P.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 24 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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 7643P outperforms Ryzen 7 7800X3D by 100% in Passmark.
Pros & cons summary
| Physical cores | 8 | 48 |
| Threads | 16 | 96 |
| Chip lithography | 5 nm | 7 nm |
| Power consumption (TDP) | 120 Watt | 225 Watt |
We couldn't decide between Ryzen 7 7800X3D and EPYC 7643P. We've got no test results to judge.
Note that Ryzen 7 7800X3D is a desktop processor while EPYC 7643P is a server/workstation one.
Should you still have questions on choice between Ryzen 7 7800X3D and EPYC 7643P, 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.
