Ryzen 9 7840HX vs EPYC Embedded 3251
Primary details
Comparing EPYC Embedded 3251 and Ryzen 9 7840HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | AMD EPYC Embedded | AMD Dragon Range (Zen 4, Ryzen 7045) |
| Architecture codename | Zen (2017−2020) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | 21 February 2018 (6 years ago) | 17 January 2024 (less than a year ago) |
| Launch price (MSRP) | $315 | no data |
Detailed specifications
EPYC Embedded 3251 and Ryzen 9 7840HX 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) | 12 (Dodeca-Core) |
| Threads | 16 | 24 |
| Base clock speed | 2.5 GHz | 2.9 GHz |
| Boost clock speed | 3.1 GHz | 5.1 GHz |
| Multiplier | 25 | no data |
| L1 cache | 96K (per core) | 768 KB |
| L2 cache | 512K (per core) | 12 MB |
| L3 cache | 16 MB (shared) | 64 MB |
| Chip lithography | 14 nm | 5 nm |
| Die size | 192 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 4,800 million | 9900 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC Embedded 3251 and Ryzen 9 7840HX 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 (Uniprocessor) | no data |
| Socket | TR4 | FL1 |
| Power consumption (TDP) | 50 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3251 and Ryzen 9 7840HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3251 and Ryzen 9 7840HX are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3251 and Ryzen 9 7840HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR5 |
| Maximum memory size | 512 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 42.671 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 610M |
Pros & cons summary
| Recency | 21 February 2018 | 17 January 2024 |
| Physical cores | 8 | 12 |
| Threads | 16 | 24 |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 50 Watt | 55 Watt |
EPYC Embedded 3251 has 10% lower power consumption.
Ryzen 9 7840HX, on the other hand, has an age advantage of 5 years, 50% more physical cores and 50% more threads, and a 180% more advanced lithography process.
We couldn't decide between EPYC Embedded 3251 and Ryzen 9 7840HX. We've got no test results to judge.
Be aware that EPYC Embedded 3251 is a server/workstation processor while Ryzen 9 7840HX is a notebook one.
Should you still have questions on choice between EPYC Embedded 3251 and Ryzen 9 7840HX, ask them in Comments section, and we shall answer.
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