Ryzen 5 PRO 8640HS vs EPYC 7643
Aggregate performance score
EPYC 7643 outperforms Ryzen 5 PRO 8640HS by a whopping 260% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 76 | 749 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 7.25 | no data |
| Market segment | Server | Laptop |
| Series | AMD EPYC | no data |
| Power efficiency | 8.17 | 18.25 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Milan (2021−2023) | Hawk Point (2024−2025) |
| Release date | 15 March 2021 (5 years ago) | 16 April 2024 (2 years ago) |
| Launch price (MSRP) | $4,995 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
Basic parameters of EPYC 7643 and Ryzen 5 PRO 8640HS: 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 | 48 (Octatetraconta-Core) | 6 (Hexa-Core) |
| Threads | 96 | 12 |
| Base clock speed | 2.3 GHz | 3.5 GHz |
| Boost clock speed | 3.6 GHz | 4.9 GHz |
| Multiplier | 23 | no data |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 256 MB (shared) | 16 MB (shared) |
| Chip lithography | 7 nm+ | 4 nm |
| Die size | 8x 81 mm2 | 178 mm2 |
| Number of transistors | 33,200 million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on EPYC 7643 and Ryzen 5 PRO 8640HS 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 | 1 |
| Socket | SP3 | FP7 |
| Power consumption (TDP) | 225 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7643 and Ryzen 5 PRO 8640HS. 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 7643 and Ryzen 5 PRO 8640HS are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7643 and Ryzen 5 PRO 8640HS. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5 |
| Maximum memory size | 4 TiB | no data |
| Maximum memory bandwidth | 204.795 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon 760M |
Peripherals
Specifications and connection of peripherals supported by EPYC 7643 and Ryzen 5 PRO 8640HS.
| PCIe version | 4.0 | 4.0 |
| PCI Express lanes | 128 | 20 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 43.57 | 12.11 |
| Recency | 15 March 2021 | 16 April 2024 |
| Physical cores | 48 | 6 |
| Threads | 96 | 12 |
| Chip lithography | 7 nm | 4 nm |
| Power consumption (TDP) | 225 Watt | 28 Watt |
EPYC 7643 has a 260% higher aggregate performance score, and 700% more physical cores and 700% more threads.
Ryzen 5 PRO 8640HS, on the other hand, has an age advantage of 3 years, a 75% more advanced lithography process, and 704% lower power consumption.
The AMD EPYC 7643 is our recommended choice as it beats the AMD Ryzen 5 PRO 8640HS in performance tests.
Be aware that EPYC 7643 is a server/workstation processor while Ryzen 5 PRO 8640HS is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
