Ryzen 5 PRO 4650U vs i5-8400B
Primary details
Comparing Core i5-8400B and Ryzen 5 PRO 4650U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 950 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i5 | AMD Renoir (Ryzen 4000 APU) |
| Power efficiency | no data | 50.06 |
| Architecture codename | Coffee Lake (2017−2019) | Renoir-U PRO (Zen 2) (2020) |
| Release date | 2 April 2018 (6 years ago) | 7 May 2020 (4 years ago) |
| Launch price (MSRP) | $182 | no data |
Detailed specifications
Core i5-8400B and Ryzen 5 PRO 4650U 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 | 6 (Hexa-Core) | 6 (Hexa-Core) |
| Threads | 6 | 12 |
| Base clock speed | 2.8 GHz | 2.1 GHz |
| Boost clock speed | 4 GHz | 4 GHz |
| Bus type | DMI 3.0 | PCIe 3.0 |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 28 | 21 |
| L1 cache | 384 KB | 64K (per core) |
| L2 cache | 1.5 MB | 512K (per core) |
| L3 cache | 9 MB | 8 MB (shared) |
| Chip lithography | 14 nm | 7 nm |
| Die size | 126 mm2 | 156 mm2 |
| Maximum core temperature | 100 °C | 105 °C |
| Number of transistors | no data | 9,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Core i5-8400B and Ryzen 5 PRO 4650U 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 |
| Socket | FCBGA1440 | FP6 |
| Power consumption (TDP) | 65 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-8400B and Ryzen 5 PRO 4650U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | PRO, 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, SME |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
Security technologies
Core i5-8400B and Ryzen 5 PRO 4650U 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 | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-8400B and Ryzen 5 PRO 4650U 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 Core i5-8400B and Ryzen 5 PRO 4650U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4 |
| Maximum memory size | 64 GB | 64 GB |
| Max memory channels | 2 | 4 |
| Maximum memory bandwidth | 42.671 GB/s | 68.27 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel UHD Graphics 630 | AMD Radeon RX Vega 6 (Ryzen 4000/5000) ( - 1500 MHz) |
| Max video memory | 64 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.05 GHz | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i5-8400B and Ryzen 5 PRO 4650U integrated GPUs.
| Number of displays supported | 3 | no data |
Graphics image quality
Maximum display resolutions supported by Core i5-8400B and Ryzen 5 PRO 4650U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2304@30Hz | no data |
| Max resolution over eDP | 4096x2304@60Hz | no data |
| Max resolution over DisplayPort | 4096x2304@60Hz | no data |
Graphics API support
APIs supported by Core i5-8400B and Ryzen 5 PRO 4650U integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.5 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i5-8400B and Ryzen 5 PRO 4650U.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 16 | no data |
Pros & cons summary
| Integrated graphics card | 3.09 | 6.04 |
| Recency | 2 April 2018 | 7 May 2020 |
| Threads | 6 | 12 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 65 Watt | 15 Watt |
Ryzen 5 PRO 4650U has 95.5% faster integrated GPU, an age advantage of 2 years, 100% more threads, a 100% more advanced lithography process, and 333.3% lower power consumption.
We couldn't decide between Core i5-8400B and Ryzen 5 PRO 4650U. We've got no test results to judge.
Should you still have questions on choice between Core i5-8400B and Ryzen 5 PRO 4650U, ask them in Comments section, and we shall answer.
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