Ultra 7 155U vs EPYC 7261
Primary details
Comparing EPYC 7261 and Core Ultra 7 155U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 719 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | AMD EPYC | Intel Meteor Lake-U |
| Architecture codename | Naples (2017−2018) | Meteor Lake-P (2023) |
| Release date | 14 June 2018 (6 years ago) | 14 December 2023 (less than a year ago) |
Detailed specifications
EPYC 7261 and Core Ultra 7 155U 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 | 14 |
| Base clock speed | 2.5 GHz | 1.7 GHz |
| Boost clock speed | 2.5 GHz | 4.8 GHz |
| Multiplier | 25 | no data |
| L1 cache | 768 KB | 112 KB (per core) |
| L2 cache | 4 MB | 2 MB (per core) |
| L3 cache | 64 MB | 12 MB |
| Chip lithography | 14 nm | Intel 4 nm |
| Die size | 213 mm2 | no data |
| Maximum core temperature | no data | 110 °C |
| Maximum case temperature (TCase) | 81 °C | no data |
| Number of transistors | 19200 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC 7261 and Core Ultra 7 155U 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 (Multiprocessor) | 1 |
| Socket | SP3 | FCBGA2049 |
| Power consumption (TDP) | 155 W, 170 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7261 and Core Ultra 7 155U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Turbo Boost Max 3.0 | no data | - |
| Status | no data | Launched |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, ONNX RT |
Security technologies
EPYC 7261 and Core Ultra 7 155U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7261 and Core Ultra 7 155U are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7261 and Core Ultra 7 155U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR5 |
| Maximum memory size | 2 TiB | 96 GB |
| Max memory channels | 8 | 2 |
| Maximum memory bandwidth | 170.671 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.95 GHz |
Graphics interfaces
Available interfaces and connections of EPYC 7261 and Core Ultra 7 155U integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by EPYC 7261 and Core Ultra 7 155U integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | no data | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by EPYC 7261 and Core Ultra 7 155U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.2 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by EPYC 7261 and Core Ultra 7 155U.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 128 | 12 |
| PCI support | no data | 4.0 |
Pros & cons summary
| Recency | 14 June 2018 | 14 December 2023 |
| Physical cores | 8 | 12 |
| Threads | 16 | 14 |
| Power consumption (TDP) | 155 Watt | 15 Watt |
EPYC 7261 has 14.3% more threads.
Ultra 7 155U, on the other hand, has an age advantage of 5 years, 50% more physical cores, and 933.3% lower power consumption.
We couldn't decide between EPYC 7261 and Core Ultra 7 155U. We've got no test results to judge.
Be aware that EPYC 7261 is a server/workstation processor while Core Ultra 7 155U is a notebook one.
Should you still have questions on choice between EPYC 7261 and Core Ultra 7 155U, ask them in Comments section, and we shall answer.
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