EPYC 4585PX vs Ryzen 9 PRO 7940HS
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 414 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | AMD Phoenix (Zen 4, Ryzen 7040) | no data |
| Power efficiency | 48.06 | no data |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Phoenix-HS (Zen 4) (2023) | Grado (2025) |
| Release date | 13 June 2023 (1 year ago) | 13 May 2025 (recently) |
| Launch price (MSRP) | no data | $699 |
Detailed specifications
Ryzen 9 PRO 7940HS and EPYC 4585PX 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) | 16 (Hexadeca-Core) |
| Threads | 16 | 32 |
| Base clock speed | 4 GHz | 4.3 GHz |
| Boost clock speed | 5.2 GHz | 5.7 GHz |
| L1 cache | 512 KB | 80 KB (per core) |
| L2 cache | 8 MB | 1 MB (per core) |
| L3 cache | 16 MB | 128 MB (shared) |
| Chip lithography | 4 nm | 4 nm |
| Die size | 178 mm2 | 2x 70.6 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 16,630 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 9 PRO 7940HS and EPYC 4585PX 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 | FP7/FP8 | AM5 |
| Power consumption (TDP) | 35 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 PRO 7940HS and EPYC 4585PX. 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 Ryzen 9 PRO 7940HS and EPYC 4585PX are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 PRO 7940HS and EPYC 4585PX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M ( - 2800 MHz) | AMD Radeon Graphics |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 PRO 7940HS and EPYC 4585PX.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Integrated graphics card | 17.55 | 1.92 |
| Recency | 13 June 2023 | 13 May 2025 |
| Physical cores | 8 | 16 |
| Threads | 16 | 32 |
| Power consumption (TDP) | 35 Watt | 170 Watt |
Ryzen 9 PRO 7940HS has 814.1% faster integrated GPU, and 385.7% lower power consumption.
EPYC 4585PX, on the other hand, has an age advantage of 1 year, and 100% more physical cores and 100% more threads.
We couldn't decide between AMD Ryzen 9 PRO 7940HS and AMD EPYC 4585PX. We've got no test results to judge.
Be aware that Ryzen 9 PRO 7940HS is a notebook processor while EPYC 4585PX is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
