Mobile Pentium II 266 vs Pentium Gold 6405U
Primary details
Comparing Pentium Gold 6405U and Mobile Pentium II 266 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2055 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Comet Lake | Intel Mobile Pentium II |
| Power efficiency | 10.86 | no data |
| Architecture codename | Comet Lake-U (2019−2020) | P6 |
| Release date | 31 October 2019 (5 years ago) | no data |
| Launch price (MSRP) | $161 | no data |
Detailed specifications
Pentium Gold 6405U and Mobile Pentium II 266 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) | 1 (Single-Core) |
| Threads | 4 | 1 |
| Base clock speed | 2.4 GHz | no data |
| Boost clock speed | 2.4 GHz | 0.27 GHz |
| Bus type | no data | FSB |
| Bus rate | 4 GT/s | no data |
| Multiplier | no data | 4 |
| L1 cache | 256 KB | no data |
| L2 cache | 1 MB | 512 KB |
| L3 cache | 2 MB | no data |
| Chip lithography | 14 nm | 250 nm |
| Die size | no data | 131 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 8 Million |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Pentium Gold 6405U and Mobile Pentium II 266 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 | no data |
| Socket | FCBGA1528 | no data |
| Power consumption (TDP) | 15 Watt | 10.3 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium Gold 6405U and Mobile Pentium II 266. 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 | + | - |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
Security technologies
Pentium Gold 6405U and Mobile Pentium II 266 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium Gold 6405U and Mobile Pentium II 266 are enumerated here.
| AMD-V | + | - |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium Gold 6405U and Mobile Pentium II 266. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | no data |
| Maximum memory size | 64 GB | 64 GB |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 37.5 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics for 10th Gen Intel Processors | no data |
| Max video memory | 32 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 950 MHz | no data |
Graphics interfaces
Available interfaces and connections of Pentium Gold 6405U and Mobile Pentium II 266 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| DVI | + | no data |
Graphics image quality
Maximum display resolutions supported by Pentium Gold 6405U and Mobile Pentium II 266 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2304@24Hz | no data |
| Max resolution over eDP | 4096x2304@60Hz | no data |
| Max resolution over DisplayPort | 4096x2304@60Hz | no data |
Graphics API support
APIs supported by Pentium Gold 6405U and Mobile Pentium II 266 integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.5 | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium Gold 6405U and Mobile Pentium II 266.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 12 | no data |
Pros & cons summary
| Physical cores | 2 | 1 |
| Threads | 4 | 1 |
| Chip lithography | 14 nm | 250 nm |
| Power consumption (TDP) | 15 Watt | 10 Watt |
Pentium Gold 6405U has 100% more physical cores and 300% more threads, and a 1685.7% more advanced lithography process.
Mobile Pentium II 266, on the other hand, has 50% lower power consumption.
We couldn't decide between Pentium Gold 6405U and Mobile Pentium II 266. We've got no test results to judge.
Should you still have questions on choice between Pentium Gold 6405U and Mobile Pentium II 266, ask them in Comments section, and we shall answer.
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