Ryzen 9 7900X vs Pentium U5400
Primary details
Comparing Pentium U5400 and Ryzen 9 7900X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 122 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Pentium | no data |
| Power efficiency | no data | 18.12 |
| Architecture codename | Arrandale (2010−2011) | Raphael (Zen4) (2022−2023) |
| Release date | 25 May 2010 (14 years ago) | 27 September 2022 (2 years ago) |
Detailed specifications
Pentium U5400 and Ryzen 9 7900X 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) | 12 (Dodeca-Core) |
| Threads | 2 | 24 |
| Base clock speed | 1.2 GHz | 4.7 GHz |
| Boost clock speed | 0.1 GHz | 5.6 GHz |
| Bus type | DMI 1.0 | no data |
| Bus rate | 1 × 2.5 GT/s | no data |
| Multiplier | 9 | no data |
| L1 cache | 128 KB | 64K (per core) |
| L2 cache | 512 KB | 1 MB (per core) |
| L3 cache | 3 MB (shared) | 64 MB (shared) |
| Chip lithography | 32 nm | 5 nm |
| Die size | 81+114 mm2 | 2x 70 (CCD) mm2 + 122 (I/O) mm2 |
| Maximum core temperature | 105 °C | 95 °C |
| Maximum case temperature (TCase) | no data | 47 °C |
| Number of transistors | 382 Million | CCD: 6,5 Mrd + IOD: 3,4 Mrd Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Pentium U5400 and Ryzen 9 7900X 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 (Uniprocessor) | 1 |
| Socket | BGA1288 | AM5 |
| Power consumption (TDP) | 18 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium U5400 and Ryzen 9 7900X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475V |
| AES-NI | - | + |
| FMA | + | - |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| PAE | 36 Bit | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Pentium U5400 and Ryzen 9 7900X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium U5400 and Ryzen 9 7900X 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 Pentium U5400 and Ryzen 9 7900X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-5200 |
| Maximum memory size | 8 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 12.799 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for Previous Generation Intel® Processors | AMD Radeon Graphics (Ryzen 7000) |
| Clear Video | + | no data |
| Graphics max frequency | 500 MHz | no data |
Graphics interfaces
Available interfaces and connections of Pentium U5400 and Ryzen 9 7900X integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium U5400 and Ryzen 9 7900X.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | 16 | 24 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Pros & cons summary
| Recency | 25 May 2010 | 27 September 2022 |
| Physical cores | 2 | 12 |
| Threads | 2 | 24 |
| Chip lithography | 32 nm | 5 nm |
| Power consumption (TDP) | 18 Watt | 170 Watt |
Pentium U5400 has 844.4% lower power consumption.
Ryzen 9 7900X, on the other hand, has an age advantage of 12 years, 500% more physical cores and 1100% more threads, and a 540% more advanced lithography process.
We couldn't decide between Pentium U5400 and Ryzen 9 7900X. We've got no test results to judge.
Be aware that Pentium U5400 is a notebook processor while Ryzen 9 7900X is a desktop one.
Should you still have questions on choice between Pentium U5400 and Ryzen 9 7900X, ask them in Comments section, and we shall answer.
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