A8-3820 vs A8-7100
Aggregate performance score
A8-3820 outperforms A8-7100 by a substantial 32% based on our aggregate benchmark results.
Primary details
Comparing A8-7100 and A8-3820 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2438 | 2228 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Kaveri | no data |
| Power efficiency | 5.16 | 1.99 |
| Architecture codename | Kaveri (2014−2015) | Llano (2011−2012) |
| Release date | 4 June 2014 (10 years ago) | 20 December 2011 (12 years ago) |
Detailed specifications
A8-7100 and A8-3820 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) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 1.8 GHz | 2.5 GHz |
| Boost clock speed | 3 GHz | 2.8 GHz |
| L1 cache | no data | 128 KB (per core) |
| L2 cache | 4096 KB | 1 MB (per core) |
| L3 cache | no data | 0 KB |
| Chip lithography | 28 nm | 32 nm |
| Die size | 245 mm2 | 228 mm2 |
| Number of transistors | 2410 Million | 1,178 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on A8-7100 and A8-3820 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 | no data | 1 |
| Socket | FP3 | FM1 |
| Power consumption (TDP) | 19 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A8-7100 and A8-3820. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x SSE (1, 2, 3, 3S, 4.1, 4.2, 4A),-64, AES, AVX, FMA | no data |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
| FRTC | + | - |
| TrueAudio | + | - |
| PowerNow | + | - |
| PowerGating | + | - |
| Out-of-band client management | + | - |
| VirusProtect | + | - |
| HSA | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by A8-7100 and A8-3820 are enumerated here.
| AMD-V | + | + |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A8-7100 and A8-3820. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1600 | DDR3 |
| Max memory channels | 2 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon R5 Graphics | AMD Radeon HD 6550D |
| iGPU core count | 4 | no data |
| Enduro | + | - |
| Switchable graphics | + | - |
| UVD | + | - |
| VCE | + | - |
Graphics interfaces
Available interfaces and connections of A8-7100 and A8-3820 integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A8-7100 and A8-3820 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 12 | no data |
| Vulkan | + | - |
Peripherals
Specifications and connection of peripherals supported by A8-7100 and A8-3820.
| PCIe version | 3.0 | no data |
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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Performance score | 1.04 | 1.37 |
| Recency | 4 June 2014 | 20 December 2011 |
| Chip lithography | 28 nm | 32 nm |
| Power consumption (TDP) | 19 Watt | 65 Watt |
A8-7100 has an age advantage of 2 years, a 14.3% more advanced lithography process, and 242.1% lower power consumption.
A8-3820, on the other hand, has a 31.7% higher aggregate performance score.
The A8-3820 is our recommended choice as it beats the A8-7100 in performance tests.
Be aware that A8-7100 is a notebook processor while A8-3820 is a desktop one.
Should you still have questions on choice between A8-7100 and A8-3820, ask them in Comments section, and we shall answer.
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