Pentium Gold 6405U vs A9-9400 SoC
Primary details
Comparing A9-9400 SoC and Pentium Gold 6405U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 2025 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Comet Lake |
| Power efficiency | no data | 10.94 |
| Architecture codename | Stoney Ridge (2016−2019) | Comet Lake-U (2019−2020) |
| Release date | 31 May 2016 (8 years ago) | 31 October 2019 (5 years ago) |
| Launch price (MSRP) | no data | $161 |
Detailed specifications
A9-9400 SoC and Pentium Gold 6405U 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) | 2 (Dual-core) |
| Threads | 2 | 4 |
| Base clock speed | 2.4 GHz | 2.4 GHz |
| Boost clock speed | 3.2 GHz | 2.4 GHz |
| Bus rate | no data | 4 GT/s |
| L1 cache | 160 KB | 256 KB |
| L2 cache | 1 MB (per core) | 1 MB |
| L3 cache | 0 KB | 2 MB |
| Chip lithography | 28 nm | 14 nm |
| Die size | 125 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 74 °C | no data |
| Number of transistors | 1,200 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on A9-9400 SoC and Pentium Gold 6405U 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 | FT4 | FCBGA1528 |
| Power consumption (TDP) | 10 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A9-9400 SoC and Pentium Gold 6405U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | - |
| 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
A9-9400 SoC and Pentium Gold 6405U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Key | no data | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A9-9400 SoC and Pentium Gold 6405U 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 A9-9400 SoC and Pentium Gold 6405U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 |
| Maximum memory size | no data | 64 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 37.5 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Radeon R5 3CU | Intel® UHD Graphics for 10th Gen Intel® Processors |
| Max video memory | no data | 32 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 950 MHz |
Graphics interfaces
Available interfaces and connections of A9-9400 SoC and Pentium Gold 6405U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by A9-9400 SoC and Pentium Gold 6405U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
Graphics API support
APIs supported by A9-9400 SoC and Pentium Gold 6405U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by A9-9400 SoC and Pentium Gold 6405U.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 8 | 12 |
Pros & cons summary
| Recency | 31 May 2016 | 31 October 2019 |
| Threads | 2 | 4 |
| Chip lithography | 28 nm | 14 nm |
| Power consumption (TDP) | 10 Watt | 15 Watt |
A9-9400 SoC has 50% lower power consumption.
Pentium Gold 6405U, on the other hand, has an age advantage of 3 years, 100% more threads, and a 100% more advanced lithography process.
We couldn't decide between A9-9400 SoC and Pentium Gold 6405U. We've got no test results to judge.
Note that A9-9400 SoC is a desktop processor while Pentium Gold 6405U is a notebook one.
Should you still have questions on choice between A9-9400 SoC and Pentium Gold 6405U, 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.
