Ryzen 7 4980U vs Ryzen 9 3900X
Aggregate performance score
Ryzen 9 3900X outperforms Ryzen 7 4980U by an impressive 87% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 9 3900X and Ryzen 7 4980U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 275 | 712 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 21.70 | no data |
| Market segment | Desktop processor | Laptop |
| Series | AMD Ryzen 9 | AMD Renoir (Ryzen 4000 APU) |
| Power efficiency | 15.54 | 69.40 |
| Architecture codename | Matisse (Zen 2) (2019−2020) | Renoir-U (Zen 2) (2020−2021) |
| Release date | 7 July 2019 (5 years ago) | 13 April 2021 (3 years ago) |
| Launch price (MSRP) | $499 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 9 3900X and Ryzen 7 4980U 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 | 12 (Dodeca-Core) | 8 (Octa-Core) |
| Threads | 24 | 16 |
| Base clock speed | 3.8 GHz | 2 GHz |
| Boost clock speed | 4.6 GHz | 4.4 GHz |
| Multiplier | no data | 20 |
| L1 cache | 96K (per core) | 512 KB |
| L2 cache | 512K (per core) | 4 MB |
| L3 cache | 64 MB | 8 MB |
| Chip lithography | 7 nm, 12 nm | 7 nm |
| Die size | no data | 156 mm2 |
| Maximum core temperature | 95 °C | 105 °C |
| Number of transistors | 19,200 million | 9800 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 3900X and Ryzen 7 4980U 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) | no data |
| Socket | AM4 | FP6 |
| Power consumption (TDP) | 125 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 3900X and Ryzen 7 4980U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 3900X and Ryzen 7 4980U are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 3900X and Ryzen 7 4980U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Dual-channel | DDR4 |
| Maximum memory size | 128 GB | 64 GB |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 51.196 GB/s | 68.27 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | - | AMD Radeon RX Vega 8 (Ryzen 4000/5000) ( - 1950 MHz) |
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.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Cinebench 15 64-bit single-core
Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.
Cinebench 11.5 64-bit single-core
Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.
Geekbench 5.5 Multi-Core
Blender(-)
Geekbench 5.5 Single-Core
7-Zip Single
7-Zip
WebXPRT 3
Pros & cons summary
| Performance score | 20.53 | 11.00 |
| Recency | 7 July 2019 | 13 April 2021 |
| Physical cores | 12 | 8 |
| Threads | 24 | 16 |
| Power consumption (TDP) | 125 Watt | 15 Watt |
Ryzen 9 3900X has a 86.6% higher aggregate performance score, and 50% more physical cores and 50% more threads.
Ryzen 7 4980U, on the other hand, has an age advantage of 1 year, and 733.3% lower power consumption.
The Ryzen 9 3900X is our recommended choice as it beats the Ryzen 7 4980U in performance tests.
Note that Ryzen 9 3900X is a desktop processor while Ryzen 7 4980U is a notebook one.
Should you still have questions on choice between Ryzen 9 3900X and Ryzen 7 4980U, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
