Ultra 9 285T vs Ryzen 9 7845HX
Primary details
Comparing Ryzen 9 7845HX and Core Ultra 9 285T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 159 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Power efficiency | 49.40 | no data |
| Architecture codename | Dragon Range-HX (Zen 4) (2023−2024) | Arrow Lake-S (2024−2025) |
| Release date | 4 January 2023 (1 year ago) | January 2025 |
Detailed specifications
Ryzen 9 7845HX 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 | 12 (Dodeca-Core) | 24 (Tetracosa-Core) |
| Threads | 24 | 24 |
| Base clock speed | 3 GHz | 1.4 GHz |
| Boost clock speed | 5.2 GHz | 5.4 GHz |
| L1 cache | 64K (per core) | 112 KB (per core) |
| L2 cache | 1 MB (per core) | 3 MB (per core) |
| L3 cache | 64 MB (shared) | 36 MB (shared) |
| Chip lithography | CCD = 5 nm, I/O = 6 nm | 3 nm |
| Die size | 2x 71 mm2 | 243 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 13,140 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 7845HX 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 | FL1 | 1851 |
| Power consumption (TDP) | 55 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7845HX and Core Ultra 9 285T. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen 9 7845HX and Core Ultra 9 285T technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7845HX and Core Ultra 9 285T 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 Ryzen 9 7845HX and Core Ultra 9 285T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5 Depends on motherboard |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M (400 - 2200 MHz) | Arc Xe2 Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7845HX and Core Ultra 9 285T.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 28 | 20 |
Pros & cons summary
| Physical cores | 12 | 24 |
| Power consumption (TDP) | 55 Watt | 35 Watt |
Ultra 9 285T has 100% more physical cores, and 57.1% lower power consumption.
We couldn't decide between Ryzen 9 7845HX and Core Ultra 9 285T. We've got no test results to judge.
Be aware that Ryzen 9 7845HX is a notebook processor while Core Ultra 9 285T is a desktop one.
Should you still have questions on choice between Ryzen 9 7845HX and Core Ultra 9 285T, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
