Ultra 9 285T vs Pentium 3805U
Primary details
Comparing Pentium 3805U and Core Ultra 9 285T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2673 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Pentium | no data |
| Power efficiency | 4.64 | no data |
| Architecture codename | Broadwell-U (2015) | Arrow Lake-S (2024−2025) |
| Release date | 1 March 2015 (9 years ago) | January 2025 |
| Launch price (MSRP) | $161 | no data |
Detailed specifications
Pentium 3805U and Core Ultra 9 285T 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 | 2 (Dual-core) | 24 (Tetracosa-Core) |
| Threads | 2 | 24 |
| Base clock speed | 1.9 GHz | 1.4 GHz |
| Boost clock speed | 1.9 GHz | 5.4 GHz |
| Bus rate | 5 GT/s | no data |
| L1 cache | 64K (per core) | 112 KB (per core) |
| L2 cache | 256K (per core) | 3 MB (per core) |
| L3 cache | 2 MB (shared) | 36 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Die size | 82 mm2 | 243 mm2 |
| Maximum core temperature | 105 °C | no data |
| Maximum case temperature (TCase) | 105 °C | no data |
| Number of transistors | 1300 Million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Pentium 3805U and Core Ultra 9 285T 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 |
| Socket | FCBGA1168 | 1851 |
| Power consumption (TDP) | 15 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 3805U and Core Ultra 9 285T. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | no data |
| 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 | + | - |
| Flex Memory Access | + | no data |
| Smart Response | - | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Pentium 3805U and Core Ultra 9 285T technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | no data |
| Secure Key | + | no data |
| Identity Protection | + | - |
| OS Guard | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium 3805U and Core Ultra 9 285T are enumerated here.
| AMD-V | + | - |
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium 3805U and Core Ultra 9 285T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 Depends on motherboard |
| Maximum memory size | 16 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 25.6 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics for 5th Generation Intel Processors | Arc Xe2 Graphics 64EU |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Graphics max frequency | 800 MHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Pentium 3805U and Core Ultra 9 285T integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by Pentium 3805U and Core Ultra 9 285T integrated GPUs, sometimes API versions are included.
| DirectX | 11.2/12 | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium 3805U and Core Ultra 9 285T.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | 12 | 20 |
Pros & cons summary
| Physical cores | 2 | 24 |
| Threads | 2 | 24 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 15 Watt | 35 Watt |
Pentium 3805U has 133.3% lower power consumption.
Ultra 9 285T, on the other hand, has 1100% more physical cores and 1100% more threads, and a 366.7% more advanced lithography process.
We couldn't decide between Pentium 3805U and Core Ultra 9 285T. We've got no test results to judge.
Be aware that Pentium 3805U is a notebook processor while Core Ultra 9 285T is a desktop one.
Should you still have questions on choice between Pentium 3805U and Core Ultra 9 285T, ask them in Comments section, and we shall answer.
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