Ryzen 9 5900XT vs Mobile Pentium III 400
Primary details
Comparing Mobile Pentium III 400 and Ryzen 9 5900XT processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 136 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Architecture codename | Coppermine (1999−2001) | Vermeer (2020−2024) |
| Release date | 25 October 1999 (24 years ago) | 31 July 2024 (less than a year ago) |
Detailed specifications
Mobile Pentium III 400 and Ryzen 9 5900XT 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 | 1 (Single-Core) | 16 (Hexadeca-Core) |
| Threads | 1 | 32 |
| Base clock speed | no data | 3.3 GHz |
| Boost clock speed | 0.4 GHz | 4.8 GHz |
| L1 cache | 32 KB | 64 KB (per core) |
| L2 cache | 256 KB | 512 KB (per core) |
| L3 cache | no data | 64 MB |
| Chip lithography | 180 nm | 7 nm |
| Die size | 106 mm2 | 2x 74 mm2 |
| Number of transistors | 28 million | 8,300 million |
| 64 bit support | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Mobile Pentium III 400 and Ryzen 9 5900XT 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 | Intel Micro-BGA2 | AM4 |
| Power consumption (TDP) | 10 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Pentium III 400 and Ryzen 9 5900XT. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Pentium III 400 and Ryzen 9 5900XT are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Pentium III 400 and Ryzen 9 5900XT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | N/A |
Peripherals
Specifications and connection of peripherals supported by Mobile Pentium III 400 and Ryzen 9 5900XT.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 25 October 1999 | 31 July 2024 |
| Physical cores | 1 | 16 |
| Threads | 1 | 32 |
| Chip lithography | 180 nm | 7 nm |
| Power consumption (TDP) | 10 Watt | 105 Watt |
Mobile Pentium III 400 has 950% lower power consumption.
Ryzen 9 5900XT, on the other hand, has an age advantage of 24 years, 1500% more physical cores and 3100% more threads, and a 2471.4% more advanced lithography process.
We couldn't decide between Mobile Pentium III 400 and Ryzen 9 5900XT. We've got no test results to judge.
Be aware that Mobile Pentium III 400 is a notebook processor while Ryzen 9 5900XT is a desktop one.
Should you still have questions on choice between Mobile Pentium III 400 and Ryzen 9 5900XT, 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.
