Ryzen 9 7945HX vs Pentium III 1400
Aggregate performance score
Ryzen 9 7945HX outperforms Pentium III 1400 by a whopping 27882% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3625 | 167 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Power efficiency | 0.15 | 23.82 |
| Designer | Intel | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Tualatin (2000−2002) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | December 2001 (23 years ago) | 4 January 2023 (2 years ago) |
Detailed specifications
Pentium III 1400 and Ryzen 9 7945HX 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 | 2.5 GHz |
| Boost clock speed | 1.4 GHz | 5.4 GHz |
| L1 cache | 8 KB | 64K (per core) |
| L2 cache | 256 KB | 1 MB (per core) |
| L3 cache | 0 KB | 64 MB (shared) |
| Chip lithography | 130 nm | CCD = 5 nm, I/O = 6 nm |
| Die size | 80 mm2 | 2x 71 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 69 °C | no data |
| Number of transistors | 44 million | 13,140 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Pentium III 1400 and Ryzen 9 7945HX 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 | 370 | FL1 |
| Power consumption (TDP) | 31 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium III 1400 and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium III 1400 and Ryzen 9 7945HX are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium III 1400 and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 610M (400 - 2200 MHz) |
Peripherals
Specifications and connection of peripherals supported by Pentium III 1400 and Ryzen 9 7945HX.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 28 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 0.11 | 30.78 |
| Physical cores | 1 | 16 |
| Threads | 1 | 32 |
| Power consumption (TDP) | 31 Watt | 55 Watt |
Pentium III 1400 has 77.4% lower power consumption.
Ryzen 9 7945HX, on the other hand, has a 27881.8% higher aggregate performance score, and 1500% more physical cores and 3100% more threads.
The AMD Ryzen 9 7945HX is our recommended choice as it beats the Intel Pentium III 1400 in performance tests.
Note that Pentium III 1400 is a desktop processor while Ryzen 9 7945HX is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
