Ryzen 9 3900X vs Ryzen 7 2800H
Aggregate performance score
Ryzen 9 3900X outperforms Ryzen 7 2800H by a whopping 300% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 7 2800H and Ryzen 9 3900X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1213 | 275 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 21.73 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Ryzen 7 | AMD Ryzen 9 |
| Power efficiency | 32.37 | 15.54 |
| Architecture codename | Raven Ridge (Zen) (2018) | Matisse (Zen 2) (2019−2020) |
| Release date | 10 September 2018 (6 years ago) | 7 July 2019 (5 years ago) |
| Launch price (MSRP) | no data | $499 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 7 2800H and Ryzen 9 3900X 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 | 3.4 GHz | 3.8 GHz |
| Boost clock speed | 3.3 GHz | 4.6 GHz |
| Multiplier | 33 | no data |
| L1 cache | 384 KB | 768 KB |
| L2 cache | 2 MB | 6 MB |
| L3 cache | 4 MB (shared) | 64 MB |
| Chip lithography | 14 nm | 7 nm, 12 nm |
| Die size | 209.78 mm2 | no data |
| Maximum core temperature | 95 °C | 95 °C |
| Number of transistors | 4950 Million | 19,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 7 2800H and Ryzen 9 3900X 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 (Uniprocessor) | 1 (Uniprocessor) |
| Socket | FP5 | AM4 |
| Power consumption (TDP) | 45 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 2800H and Ryzen 9 3900X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA | no data |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 2800H and Ryzen 9 3900X are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 2800H and Ryzen 9 3900X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 Dual-channel |
| Maximum memory size | 32 GB | 128 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 51.196 GB/s | 51.196 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 11 ( - 1300 MHz) | - |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 2800H and Ryzen 9 3900X.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 12 | 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.
Pros & cons summary
| Performance score | 5.13 | 20.53 |
| Recency | 10 September 2018 | 7 July 2019 |
| Physical cores | 4 | 12 |
| Threads | 8 | 24 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 45 Watt | 105 Watt |
Ryzen 7 2800H has 133.3% lower power consumption.
Ryzen 9 3900X, on the other hand, has a 300.2% higher aggregate performance score, an age advantage of 9 months, 200% more physical cores and 200% more threads, and a 100% more advanced lithography process.
The Ryzen 9 3900X is our recommended choice as it beats the Ryzen 7 2800H in performance tests.
Be aware that Ryzen 7 2800H is a notebook processor while Ryzen 9 3900X is a desktop one.
Should you still have questions on choice between Ryzen 7 2800H and Ryzen 9 3900X, ask them in Comments section, and we shall answer.
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