Ultra 7 265KF vs EPYC Embedded 3251
Primary details
Comparing EPYC Embedded 3251 and Core Ultra 7 265KF processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 89 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 97.72 |
| Market segment | Server | Desktop processor |
| Series | AMD EPYC Embedded | no data |
| Power efficiency | no data | 28.05 |
| Architecture codename | Zen (2017−2020) | Arrow Lake-S (2024−2025) |
| Release date | 21 February 2018 (6 years ago) | 24 October 2024 (less than a year ago) |
| Launch price (MSRP) | $315 | $379 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC Embedded 3251 and Core Ultra 7 265KF 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) | 20 (Icosa-Core) |
| Threads | 16 | 20 |
| Base clock speed | 2.5 GHz | 3.9 GHz |
| Boost clock speed | 3.1 GHz | 5.5 GHz |
| Multiplier | 25 | no data |
| L1 cache | 96K (per core) | 112 KB (per core) |
| L2 cache | 512K (per core) | 3 MB (per core) |
| L3 cache | 16 MB (shared) | 30 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Die size | 192 mm2 | 243 mm2 |
| Number of transistors | 4,800 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | + |
Compatibility
Information on EPYC Embedded 3251 and Core Ultra 7 265KF 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) | 1 |
| Socket | TR4 | 1851 |
| Power consumption (TDP) | 50 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 3251 and Core Ultra 7 265KF. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
EPYC Embedded 3251 and Core Ultra 7 265KF technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 3251 and Core Ultra 7 265KF are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3251 and Core Ultra 7 265KF. 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 | N/A |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 3251 and Core Ultra 7 265KF.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 21 February 2018 | 24 October 2024 |
| Physical cores | 8 | 20 |
| Threads | 16 | 20 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 50 Watt | 125 Watt |
EPYC Embedded 3251 has 150% lower power consumption.
Ultra 7 265KF, on the other hand, has an age advantage of 6 years, 150% more physical cores and 25% more threads, and a 366.7% more advanced lithography process.
We couldn't decide between EPYC Embedded 3251 and Core Ultra 7 265KF. We've got no test results to judge.
Be aware that EPYC Embedded 3251 is a server/workstation processor while Core Ultra 7 265KF is a desktop one.
Should you still have questions on choice between EPYC Embedded 3251 and Core Ultra 7 265KF, ask them in Comments section, and we shall answer.
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