i3-8121U vs Ryzen 7 7840H
Aggregate performance score
Ryzen 7 7840H outperforms Core i3-8121U by a whopping 542% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 7 7840H and Core i3-8121U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 370 | 1754 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | no data | Intel Core i3 |
| Power efficiency | 47.86 | 9.32 |
| Designer | AMD | Intel |
| Architecture codename | Phoenix (2023−2024) | Coffee Lake-U (2018−2019) |
| Release date | January 2023 (2 years ago) | 15 May 2018 (6 years ago) |
Detailed specifications
Ryzen 7 7840H and Core i3-8121U 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 | 8 (Octa-Core) | 2 (Dual-core) |
| Threads | 16 | 4 |
| Base clock speed | 3.8 GHz | 2.2 GHz |
| Boost clock speed | 5.1 GHz | 3.2 GHz |
| Bus type | no data | OPI |
| Bus rate | no data | 4 GT/s |
| Multiplier | no data | 22 |
| L1 cache | 64K (per core) | 128 KB |
| L2 cache | 1 MB (per core) | 512 KB |
| L3 cache | 16 MB (shared) | 4 MB (shared) |
| Chip lithography | 4 nm | 10 nm |
| Die size | 178 mm2 | 123 mm2 |
| Maximum core temperature | no data | 105 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 25,000 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Ryzen 7 7840H and Core i3-8121U 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 (Uniprocessor) |
| Socket | FP8 | Intel BGA1440 |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 7840H and Core i3-8121U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | - |
| Enhanced SpeedStep (EIST) | no data | + |
| QuickAssist | no data | - |
| Speed Shift | no data | + |
| My WiFi | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Smart Response | no data | + |
| Demand Based Switching | no data | - |
| HD Audio | no data | + |
| RST | no data | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen 7 7840H and Core i3-8121U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Key | no data | + |
| MPX | - | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 7840H and Core i3-8121U are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| VT-i | no data | - |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840H and Core i3-8121U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-5600 | DDR4 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 38.397 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M | Iris Pro Plus |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 7840H and Core i3-8121U.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 20 | 16 |
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.
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 | 17.59 | 2.74 |
| Physical cores | 8 | 2 |
| Threads | 16 | 4 |
| Chip lithography | 4 nm | 10 nm |
| Power consumption (TDP) | 35 Watt | 15 Watt |
Ryzen 7 7840H has a 542% higher aggregate performance score, 300% more physical cores and 300% more threads, and a 150% more advanced lithography process.
i3-8121U, on the other hand, has 133.3% lower power consumption.
The AMD Ryzen 7 7840H is our recommended choice as it beats the Intel Core i3-8121U in performance tests.
Other comparisons
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