Atom C3950 vs Pentium Silver J5040
Primary details
Comparing Pentium Silver J5040 and Atom C3950 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1867 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | no data | Intel Atom |
| Architecture codename | Gemini Lake Refresh (2019) | Goldmont (2016−2017) |
| Release date | 4 November 2019 (4 years ago) | 15 August 2017 (7 years ago) |
| Launch price (MSRP) | no data | $389 |
Detailed specifications
Pentium Silver J5040 and Atom C3950 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) | 16 (Hexadeca-Core) |
| Threads | 4 | 16 |
| Base clock speed | 2 GHz | 1.7 GHz |
| Boost clock speed | 3.2 GHz | 2.2 GHz |
| Multiplier | no data | 17 |
| L1 cache | 56 KB (per core) | 896 KB |
| L2 cache | 4 MB (shared) | 16 MB |
| L3 cache | 4 MB | 16 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | 93 mm2 | no data |
| Maximum core temperature | 105 °C | 78 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Pentium Silver J5040 and Atom C3950 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 | FCBGA1090 | FCBGA1310 |
| Power consumption (TDP) | 10 Watt | 24 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium Silver J5040 and Atom C3950. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| AES-NI | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | - |
| Speed Shift | - | no data |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | - |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Smart Response | - | no data |
| GPIO | + | no data |
| Turbo Boost Max 3.0 | - | no data |
| Status | Discontinued | Launched |
Security technologies
Pentium Silver J5040 and Atom C3950 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | + |
| Secure Boot | no data | + |
| Secure Key | + | + |
| MPX | + | - |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | - |
| OS Guard | + | + |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium Silver J5040 and Atom C3950 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium Silver J5040 and Atom C3950. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4: 2400 |
| Maximum memory size | 8 GB | 256 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | no data | 38.397 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 605 | no data |
| Max video memory | 8 GB | no data |
| Quick Sync Video | + | - |
| Graphics max frequency | 800 MHz | no data |
| Execution Units | 18 | no data |
Graphics interfaces
Available interfaces and connections of Pentium Silver J5040 and Atom C3950 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| MIPI-DSI | + | no data |
Graphics image quality
Maximum display resolutions supported by Pentium Silver J5040 and Atom C3950 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2160@30Hz | no data |
| Max resolution over eDP | 4096x2160@60Hz | no data |
| Max resolution over DisplayPort | 4096x2160@60Hz | no data |
Graphics API support
APIs supported by Pentium Silver J5040 and Atom C3950 integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.4 | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium Silver J5040 and Atom C3950.
| PCIe version | 2.0 | 3 |
| PCI Express lanes | 6 | 16 |
| USB revision | 2.0/3.0 | 3 |
| Total number of SATA ports | 2 | 16 |
| Max number of SATA 6 Gb/s Ports | 2 | 16 |
| Number of USB ports | 8 | 8 |
| Integrated LAN | - | 2x10/2.5/1 GBE + 2x1 GBE |
| UART | + | no data |
Pros & cons summary
| Recency | 4 November 2019 | 15 August 2017 |
| Physical cores | 4 | 16 |
| Threads | 4 | 16 |
| Power consumption (TDP) | 10 Watt | 24 Watt |
Pentium Silver J5040 has an age advantage of 2 years, and 140% lower power consumption.
Atom C3950, on the other hand, has 300% more physical cores and 300% more threads.
We couldn't decide between Pentium Silver J5040 and Atom C3950. We've got no test results to judge.
Note that Pentium Silver J5040 is a desktop processor while Atom C3950 is a server/workstation one.
Should you still have questions on choice between Pentium Silver J5040 and Atom C3950, 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.
