Ryzen 7 8840HX vs Ryzen 3 PRO 4450U
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1213 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Renoir (Ryzen 4000 APU) | no data |
| Power efficiency | 38.88 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Renoir PRO (Zen 2) (2020) | Dragon Range (2025) |
| Release date | 7 May 2020 (5 years ago) | 23 April 2025 (recently) |
Detailed specifications
Ryzen 3 PRO 4450U and Ryzen 7 8840HX 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 | 4 (Quad-Core) | 12 (Dodeca-Core) |
| Threads | 8 | 24 |
| Base clock speed | 2.4 GHz | 2.9 GHz |
| Boost clock speed | 3.7 GHz | 5.1 GHz |
| Multiplier | 25 | no data |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 1 MB (per core) |
| L3 cache | 4 MB (shared) | 64 MB (shared) |
| Chip lithography | 7 nm | 5 nm |
| Die size | 156 mm2 | 2x 71 mm2 |
| Maximum core temperature | 105 °C | no data |
| Number of transistors | 9,800 million | 13,140 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 3 PRO 4450U and Ryzen 7 8840HX 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 | FP6 | FL1 |
| Power consumption (TDP) | 15 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 3 PRO 4450U and Ryzen 7 8840HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | XFR, FMA3, SSE 4.2, AVX2, SMT | no data |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 3 PRO 4450U and Ryzen 7 8840HX are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 3 PRO 4450U and Ryzen 7 8840HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-4266 | DDR5 |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 68.27 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 5 ( - 1400 MHz) | AMD Radeon 610M |
Peripherals
Specifications and connection of peripherals supported by Ryzen 3 PRO 4450U and Ryzen 7 8840HX.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | no data | 28 |
Pros & cons summary
| Integrated graphics card | 4.48 | 2.78 |
| Recency | 7 May 2020 | 23 April 2025 |
| Physical cores | 4 | 12 |
| Threads | 8 | 24 |
| Chip lithography | 7 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 55 Watt |
Ryzen 3 PRO 4450U has 61.2% faster integrated GPU, and 266.7% lower power consumption.
Ryzen 7 8840HX, on the other hand, has an age advantage of 4 years, 200% more physical cores and 200% more threads, and a 40% more advanced lithography process.
We couldn't decide between AMD Ryzen 3 PRO 4450U and AMD Ryzen 7 8840HX. We've got no test results to judge.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
