Ultra 7 265KF vs i5-2405S
Primary details
Comparing Core i5-2405S and Core Ultra 7 265KF processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1897 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.09 | no data |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 2.96 | no data |
| Architecture codename | Sandy Bridge (2011−2013) | Arrow Lake-S (2024−2025) |
| Release date | 22 May 2011 (13 years ago) | 24 October 2024 (recently) |
| Launch price (MSRP) | $472 | $379 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i5-2405S and Core Ultra 7 265KF 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 | 4 (Quad-Core) | 20 (Icosa-Core) |
| Threads | 4 | 20 |
| Base clock speed | 2.5 GHz | 3.9 GHz |
| Boost clock speed | 3.3 GHz | 5.5 GHz |
| Bus rate | 5 GT/s | no data |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 256 KB (per core) | 3 MB (per core) |
| L3 cache | 6 MB (shared) | 30 MB (shared) |
| Chip lithography | 32 nm | 3 nm |
| Die size | 216 mm2 | 243 mm2 |
| Maximum core temperature | 69 °C | no data |
| Number of transistors | 1,160 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Core i5-2405S and Core Ultra 7 265KF 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 | FCLGA1155,LGA1155 | 1851 |
| Power consumption (TDP) | 65 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-2405S and Core Ultra 7 265KF. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX | no data |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | - | no data |
| TSX | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Core i5-2405S and Core Ultra 7 265KF technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | + |
| EDB | + | no data |
| Identity Protection | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-2405S and Core Ultra 7 265KF are enumerated here.
| VT-d | - | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-2405S and Core Ultra 7 265KF. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
| Maximum memory size | 32 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 21 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 3000 | N/A |
| Quick Sync Video | + | - |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.1 GHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i5-2405S and Core Ultra 7 265KF integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i5-2405S and Core Ultra 7 265KF.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | 16 | 20 |
Pros & cons summary
| Recency | 22 May 2011 | 24 October 2024 |
| Physical cores | 4 | 20 |
| Threads | 4 | 20 |
| Chip lithography | 32 nm | 3 nm |
| Power consumption (TDP) | 65 Watt | 125 Watt |
i5-2405S has 92.3% lower power consumption.
Ultra 7 265KF, on the other hand, has an age advantage of 13 years, 400% more physical cores and 400% more threads, and a 966.7% more advanced lithography process.
We couldn't decide between Core i5-2405S and Core Ultra 7 265KF. We've got no test results to judge.
Should you still have questions on choice between Core i5-2405S and Core Ultra 7 265KF, 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.
