i5-9400H vs Ryzen 9 3900
Aggregate performance score
Ryzen 9 3900 outperforms Core i5-9400H by a whopping 289% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 9 3900 and Core i5-9400H processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 291 | 1222 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 19.98 | no data |
| Market segment | Desktop processor | Laptop |
| Series | AMD Matisse (Ryzen 3000 Desktop) | Intel Core i5 |
| Power efficiency | 28.23 | 10.47 |
| Architecture codename | Matisse (Zen 2) (2019−2020) | Coffee Lake-H (2018−2019) |
| Release date | 24 September 2019 (5 years ago) | 23 April 2019 (5 years ago) |
| Launch price (MSRP) | $499 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 9 3900 and Core i5-9400H 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) | 4 (Quad-Core) |
| Threads | 24 | 8 |
| Base clock speed | 3.1 GHz | 2.5 GHz |
| Boost clock speed | 4.3 GHz | 4.3 GHz |
| Bus type | no data | DMI 3.0 |
| Bus rate | no data | 4 × 8 GT/s |
| Multiplier | no data | 25 |
| L1 cache | 64 KB (per core) | 256 KB |
| L2 cache | 512 KB (per core) | 1 MB |
| L3 cache | 64 MB | 8 MB |
| Chip lithography | 7 nm, 12 nm | 14 nm |
| Die size | 2x 74 mm2 | 126 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 7,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 3900 and Core i5-9400H 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 | AM4 | FCBGA1440 |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 3900 and Core i5-9400H. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| My WiFi | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| SIPP | - | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen 9 3900 and Core i5-9400H technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 3900 and Core i5-9400H 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 Ryzen 9 3900 and Core i5-9400H. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR4 |
| Maximum memory size | 128 GB | 128 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 51.196 GB/s | 44.882 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel UHD Graphics 630 |
| Max video memory | no data | 64 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.1 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Ryzen 9 3900 and Core i5-9400H integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Ryzen 9 3900 and Core i5-9400H integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096 x 2304@30Hz |
| Max resolution over eDP | no data | 4096 x 2304@60Hz |
| Max resolution over DisplayPort | no data | 4096 x 2304@60Hz |
| Max resolution over VGA | no data | N/A |
Graphics API support
APIs supported by Ryzen 9 3900 and Core i5-9400H integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 3900 and Core i5-9400H.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 24 | 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. 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.
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.
Pros & cons summary
| Performance score | 19.39 | 4.98 |
| Recency | 24 September 2019 | 23 April 2019 |
| Physical cores | 12 | 4 |
| Threads | 24 | 8 |
| Chip lithography | 7 nm | 14 nm |
| Power consumption (TDP) | 65 Watt | 45 Watt |
Ryzen 9 3900 has a 289.4% higher aggregate performance score, an age advantage of 5 months, 200% more physical cores and 200% more threads, and a 100% more advanced lithography process.
i5-9400H, on the other hand, has 44.4% lower power consumption.
The Ryzen 9 3900 is our recommended choice as it beats the Core i5-9400H in performance tests.
Note that Ryzen 9 3900 is a desktop processor while Core i5-9400H is a notebook one.
Should you still have questions on choice between Ryzen 9 3900 and Core i5-9400H, 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.
