Ultra 7 270K Plus vs Ultra 7 355
Aggregate performance score
Core Ultra 7 270K Plus outperforms Core Ultra 7 355 by a whopping 238% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 838 | 104 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 98.96 |
| Market segment | Laptop | Desktop processor |
| Power efficiency | 19.56 | 13.22 |
| Designer | Intel | Intel |
| Manufacturer | no data | TSMC |
| Architecture codename | Panther Lake (2026) | Arrow Lake Refresh (2026) |
| Release date | 5 January 2026 (less than a year ago) | 11 March 2026 (less than a year ago) |
| Launch price (MSRP) | no data | $299 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
Basic parameters of Core Ultra 7 355 and Core Ultra 7 270K Plus: 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) | 24 (Tetracosa-Core) |
| Performance-cores | 4 | 8 |
| Efficient-cores | no data | 16 |
| Low Power Efficient-cores | 4 | no data |
| Threads | 8 | 24 |
| Base clock speed | 1.7 GHz | 3.7 GHz |
| Boost clock speed | 4.7 GHz | 5.5 GHz |
| L1 cache | 2.3 MB | 192 KB (per core) |
| L2 cache | 16 MB | 3 MB (per core) |
| L3 cache | 12 MB | 36 MB (shared) |
| Chip lithography | 1.8 nm | 3 nm |
| Die size | no data | 243 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 17,800 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Core Ultra 7 355 and Core Ultra 7 270K Plus 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 | FCBGA2540 | FCLGA1851 |
| Power consumption (TDP) | 25 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 355 and Core Ultra 7 270K Plus. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | + | + |
| SIPP | - | + |
| Turbo Boost Max 3.0 | + | + |
| Deep Learning Boost | + | + |
| Supported AI Software Frameworks | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN |
Security technologies
Core Ultra 7 355 and Core Ultra 7 270K Plus technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 355 and Core Ultra 7 270K Plus are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 355 and Core Ultra 7 270K Plus. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | LPDDR5X-7467, DDR5-6400 | DDR5-7200 |
| Maximum memory size | 128 GB | 256 GB |
| Max memory channels | 2 | 2 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® Graphics | Intel® Graphics |
| Quick Sync Video | + | + |
| Graphics max frequency | 2.5 GHz | 2 GHz |
Graphics interfaces
Available interfaces and connections of Core Ultra 7 355 and Core Ultra 7 270K Plus integrated GPUs.
| Number of displays supported | 4 | 4 |
Graphics image quality
Maximum display resolutions supported by Core Ultra 7 355 and Core Ultra 7 270K Plus 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 (HDMI 2.1 FRL) |
| Max resolution over eDP | 3840 x 2400 @ 120Hz | 3840 x 2400 @ 120Hz |
| Max resolution over DisplayPort | 7680 x 4320 @ 60Hz | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Core Ultra 7 355 and Core Ultra 7 270K Plus integrated GPUs, sometimes API versions are included.
| DirectX | DirectX 12 Ultimate | 12 |
| OpenGL | 4.6 | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 7 355 and Core Ultra 7 270K Plus.
| PCIe version | 5.0 and 4.0 | 5.0 and 4.0 |
| PCI Express lanes | 12 | 24 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Pros & cons summary
| Performance score | 11.91 | 40.24 |
| Recency | 5 January 2026 | 11 March 2026 |
| Physical cores | 8 | 24 |
| Threads | 8 | 24 |
| Chip lithography | 1 nm | 3 nm |
| Power consumption (TDP) | 25 Watt | 125 Watt |
Ultra 7 355 has a 200% more advanced lithography process, and 400% lower power consumption.
Ultra 7 270K Plus, on the other hand, has a 238% higher aggregate performance score, an age advantage of 2 months, and 200% more physical cores and 200% more threads.
The Intel Core Ultra 7 270K Plus is our recommended choice as it beats the Intel Core Ultra 7 355 in performance tests.
Be aware that Core Ultra 7 355 is a notebook processor while Core Ultra 7 270K Plus is a desktop one.
Other comparisons
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