EPYC 7351 vs Ryzen 7 PRO 7840HS
Aggregate performance score
Ryzen 7 PRO 7840HS outperforms EPYC 7351 by a moderate 12% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 7 PRO 7840HS and EPYC 7351 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 344 | 427 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.13 |
| Market segment | Laptop | Server |
| Series | AMD Phoenix (Zen 4, Ryzen 7040) | AMD EPYC |
| Architecture codename | Phoenix-HS (Zen 4) | Naples (2017−2018) |
| Release date | 13 June 2023 (1 year ago) | 29 June 2017 (7 years ago) |
| Launch price (MSRP) | no data | $1,100 |
| Current price | no data | $13531 (12.3x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 7 PRO 7840HS and EPYC 7351 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 | 3.8 GHz | 2.4 GHz |
| Boost clock speed | 5.1 GHz | 2.9 GHz |
| L1 cache | 512 KB | 96K (per core) |
| L2 cache | 8 MB | 512K (per core) |
| L3 cache | 16 MB | 64 MB (shared) |
| Chip lithography | 4 nm | 14 nm |
| Die size | 178 mm2 | 192 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Ryzen 7 PRO 7840HS and EPYC 7351 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 | 2 (Multiprocessor) |
| Socket | FP7/FP8 | TR4 |
| Power consumption (TDP) | 35 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 PRO 7840HS and EPYC 7351. You'll probably need this information if you require some particular technology.
| AES-NI | no data | + |
| AVX | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 PRO 7840HS and EPYC 7351 are enumerated here.
| AMD-V | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 PRO 7840HS and EPYC 7351. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 Eight-channel |
| Maximum memory size | no data | 2 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 170.671 GB/s |
| ECC memory support | no data | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 PRO 7840HS and EPYC 7351.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 128 |
Synthetic benchmark performance
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Ryzen 7 PRO 7840HS outperforms EPYC 7351 by 12% based on our aggregate benchmark results.
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%
Ryzen 7 PRO 7840HS outperforms EPYC 7351 by 13% in Passmark.
Pros & cons summary
| Performance score | 17.14 | 15.24 |
| Recency | 13 June 2023 | 29 June 2017 |
| Physical cores | 8 | 16 |
| Threads | 16 | 32 |
| Chip lithography | 4 nm | 14 nm |
| Power consumption (TDP) | 35 Watt | 170 Watt |
The Ryzen 7 PRO 7840HS is our recommended choice as it beats the EPYC 7351 in performance tests.
Be aware that Ryzen 7 PRO 7840HS is a notebook processor while EPYC 7351 is a server/workstation one.
Should you still have questions on choice between Ryzen 7 PRO 7840HS and EPYC 7351, 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.
