Ryzen 5 8645HS vs i3-2105
Aggregate performance score
Ryzen 5 8645HS outperforms Core i3-2105 by a whopping 1147% based on our aggregate benchmark results.
Primary details
Comparing Core i3-2105 and Ryzen 5 8645HS processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2379 | 499 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.11 | no data |
| Market segment | Desktop processor | Laptop |
| Power efficiency | 1.68 | 30.27 |
| Architecture codename | Sandy Bridge (2011−2013) | Hawk Point-HS (Zen 4) (2023−2024) |
| Release date | 22 May 2011 (13 years ago) | 6 December 2023 (1 year ago) |
| Launch price (MSRP) | $145 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i3-2105 and Ryzen 5 8645HS 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) | 6 (Hexa-Core) |
| Threads | 4 | 12 |
| Base clock speed | 3.1 GHz | 4.3 GHz |
| Boost clock speed | 3.1 GHz | 5 GHz |
| Bus rate | 5 GT/s | no data |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 256 KB (per core) | 1 MB (per core) |
| L3 cache | 3 MB (shared) | 16 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | no data | 178 mm2 |
| Maximum core temperature | 69 °C | 100 °C |
| Number of transistors | no data | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Core i3-2105 and Ryzen 5 8645HS 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 | FCLGA1155 | FP8 |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i3-2105 and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX | Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3 |
| AES-NI | - | + |
| 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 |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Core i3-2105 and Ryzen 5 8645HS technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Identity Protection | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i3-2105 and Ryzen 5 8645HS 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 Core i3-2105 and Ryzen 5 8645HS. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
| Maximum memory size | 32 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 21 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics 3000 | AMD Radeon 760M ( - 2600 MHz) |
| Quick Sync Video | + | - |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.1 GHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i3-2105 and Ryzen 5 8645HS integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i3-2105 and Ryzen 5 8645HS.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | 16 | 20 |
Synthetic benchmark performance
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
Pros & cons summary
| Performance score | 1.16 | 14.47 |
| Integrated graphics card | 0.66 | 14.96 |
| Recency | 22 May 2011 | 6 December 2023 |
| Physical cores | 2 | 6 |
| Threads | 4 | 12 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Ryzen 5 8645HS has a 1147.4% higher aggregate performance score, 2166.7% faster integrated GPU, an age advantage of 12 years, 200% more physical cores and 200% more threads, a 700% more advanced lithography process, and 44.4% lower power consumption.
The Ryzen 5 8645HS is our recommended choice as it beats the Core i3-2105 in performance tests.
Note that Core i3-2105 is a desktop processor while Ryzen 5 8645HS is a notebook one.
Should you still have questions on choice between Core i3-2105 and Ryzen 5 8645HS, ask them in Comments section, and we shall answer.
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