i5-8400B vs Ryzen Threadripper 3960X
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 167 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 16.00 | no data |
| Market segment | Desktop processor | Laptop |
| Series | AMD Ryzen Threadripper | Intel Core i5 |
| Power efficiency | 11.89 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Matisse (2019−2020) | Coffee Lake (2017−2019) |
| Release date | 7 November 2019 (6 years ago) | 2 April 2018 (7 years ago) |
| Launch price (MSRP) | $1,399 | $182 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Ryzen Threadripper 3960X and Core i5-8400B 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 | 24 (Tetracosa-Core) | 6 (Hexa-Core) |
| Threads | 48 | 6 |
| Base clock speed | 3.8 GHz | 2.8 GHz |
| Boost clock speed | 4.5 GHz | 4 GHz |
| Bus type | no data | DMI 3.0 |
| Bus rate | 8 × 16 GT/s | 4 × 8 GT/s |
| Multiplier | 38 | 28 |
| L1 cache | 1536 KB | 384 KB |
| L2 cache | 12 MB | 1.5 MB |
| L3 cache | 128 MB | 9 MB |
| Chip lithography | 7 nm, 12 nm | 14 nm |
| Die size | no data | 126 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 23540 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen Threadripper 3960X and Core i5-8400B 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 | TR4 | FCBGA1440 |
| Power consumption (TDP) | 280 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper 3960X and Core i5-8400B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen Threadripper 3960X and Core i5-8400B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | 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 Threadripper 3960X and Core i5-8400B 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 Threadripper 3960X and Core i5-8400B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR4-2666 |
| Maximum memory size | 256 GB | 64 GB |
| Max memory channels | 4 | 2 |
| Maximum memory bandwidth | 102.403 GB/s | 42.671 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | - | Intel UHD Graphics 630 |
| Max video memory | - | 64 GB |
| Quick Sync Video | - | + |
| Clear Video | - | + |
| Clear Video HD | - | + |
| Graphics max frequency | - | 1.05 GHz |
| InTru 3D | - | + |
Graphics interfaces
Available interfaces and connections of Ryzen Threadripper 3960X and Core i5-8400B integrated GPUs.
| Number of displays supported | - | 3 |
Graphics image quality
Maximum display resolutions supported by Ryzen Threadripper 3960X and Core i5-8400B integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | - | + |
| Max resolution over HDMI 1.4 | - | 4096x2304@30Hz |
| Max resolution over eDP | - | 4096x2304@60Hz |
| Max resolution over DisplayPort | - | 4096x2304@60Hz |
Graphics API support
APIs supported by Ryzen Threadripper 3960X and Core i5-8400B integrated GPUs, sometimes API versions are included.
| DirectX | - | 12 |
| OpenGL | - | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper 3960X and Core i5-8400B.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 16 |
Pros & cons summary
| Recency | 7 November 2019 | 2 April 2018 |
| Physical cores | 24 | 6 |
| Threads | 48 | 6 |
| Chip lithography | 7 nm | 14 nm |
| Power consumption (TDP) | 280 Watt | 65 Watt |
Ryzen Threadripper 3960X has an age advantage of 1 year, 300% more physical cores and 700% more threads, and a 100% more advanced lithography process.
i5-8400B, on the other hand, has 330.8% lower power consumption.
We couldn't decide between AMD Ryzen Threadripper 3960X and Intel Core i5-8400B. We've got no test results to judge.
Note that Ryzen Threadripper 3960X is a desktop processor while Core i5-8400B is a notebook one.
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