Atom Z515 vs Ultra 7 155H
Aggregate performance score
Core Ultra 7 155H outperforms Atom Z515 by a whopping 11093% based on our aggregate benchmark results.
Primary details
Comparing Core Ultra 7 155H and Atom Z515 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 434 | 3338 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Meteor Lake-H | Intel Atom |
| Power efficiency | 53.27 | 20.50 |
| Architecture codename | Meteor Lake-H (2023) | Silverthorne (2008−2010) |
| Release date | 14 December 2023 (1 year ago) | 8 April 2009 (15 years ago) |
| Launch price (MSRP) | $503 | no data |
Detailed specifications
Core Ultra 7 155H and Atom Z515 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 | 16 (Hexadeca-Core) | 1 (Single-Core) |
| Threads | 22 | 1 |
| Base clock speed | 3.8 GHz | 1.2 GHz |
| Boost clock speed | 4.8 GHz | 1.2 GHz |
| Bus type | no data | FSB |
| Bus rate | no data | 400 MT/s |
| Multiplier | no data | 12 |
| L1 cache | 112 KB (per core) | 56 KB (per core) |
| L2 cache | 2 MB (per core) | 512 KB (per core) |
| L3 cache | 24 MB (shared) | 0 KB |
| Chip lithography | 7 nm | 45 nm |
| Die size | no data | 26 mm2 |
| Maximum core temperature | 110 °C | 90 °C |
| Number of transistors | no data | 47 million |
| 64 bit support | + | - |
| Windows 11 compatibility | no data | - |
Compatibility
Information on Core Ultra 7 155H and Atom Z515 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 | 1 (Uniprocessor) |
| Socket | Intel BGA 2049 | PBGA441 |
| Power consumption (TDP) | 28 Watt | 1.4 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 155H and Atom Z515. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE2, Intel® SSE3, Intel® SSSE3 |
| AES-NI | + | - |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| TSX | + | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| FSB parity | no data | - |
Security technologies
Core Ultra 7 155H and Atom Z515 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 155H and Atom Z515 are enumerated here.
| VT-d | + | - |
| VT-x | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 155H and Atom Z515. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | unknown |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Arc 8-Cores iGPU ( - 2250 MHz) | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 7 155H and Atom Z515.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 8 | no data |
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.
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.
Pros & cons summary
| Performance score | 15.67 | 0.14 |
| Recency | 14 December 2023 | 8 April 2009 |
| Physical cores | 16 | 1 |
| Threads | 22 | 1 |
| Chip lithography | 7 nm | 45 nm |
| Power consumption (TDP) | 28 Watt | 1 Watt |
Ultra 7 155H has a 11092.9% higher aggregate performance score, an age advantage of 14 years, 1500% more physical cores and 2100% more threads, and a 542.9% more advanced lithography process.
Atom Z515, on the other hand, has 2700% lower power consumption.
The Core Ultra 7 155H is our recommended choice as it beats the Atom Z515 in performance tests.
Should you still have questions on choice between Core Ultra 7 155H and Atom Z515, ask them in Comments section, and we shall answer.
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