Pentium Gold G5420T vs Atom x5-E3940
Aggregate performance score
Pentium Gold G5420T outperforms Atom x5-E3940 by an impressive 75% based on our aggregate benchmark results.
Primary details
Comparing Atom x5-E3940 and Pentium Gold G5420T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2309 | 1852 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | 5x Intel Atom | Intel Pentium Gold |
| Power efficiency | 11.64 | 5.81 |
| Architecture codename | Apollo Lake (2014−2016) | Coffee Lake (2017−2019) |
| Release date | 30 August 2014 (10 years ago) | 23 April 2019 (5 years ago) |
| Launch price (MSRP) | no data | $64 |
Detailed specifications
Atom x5-E3940 and Pentium Gold G5420T 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) | 2 (Dual-core) |
| Threads | 4 | 4 |
| Base clock speed | 1.6 GHz | 3.2 GHz |
| Boost clock speed | 1.8 GHz | 3.2 GHz |
| Bus type | no data | DMI 3.0 |
| Bus rate | no data | 4 × 8 GT/s |
| L1 cache | 56K (per core) | 128 KB |
| L2 cache | 2 MB (shared) | 512 KB |
| L3 cache | 0 KB | 4 MB |
| Chip lithography | 14 nm | 14 nm |
| Die size | no data | 126 mm2 |
| Maximum core temperature | no data | 88 °C |
| Maximum case temperature (TCase) | 103 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Atom x5-E3940 and Pentium Gold G5420T 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 | Intel BGA 1296 | FCLGA1151 |
| Power consumption (TDP) | 10 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom x5-E3940 and Pentium Gold G5420T. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
Security technologies
Atom x5-E3940 and Pentium Gold G5420T technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| 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 Atom x5-E3940 and Pentium Gold G5420T are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom x5-E3940 and Pentium Gold G5420T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR4-2400 |
| Maximum memory size | 8 GB | 64 GB |
| Max memory channels | no data | 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 Compare | Intel HD Graphics 500 | Intel UHD Graphics 610 |
| Max video memory | no data | 64 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.05 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Atom x5-E3940 and Pentium Gold G5420T integrated GPUs.
| Number of displays supported | no data | 3 |
Graphics image quality
Maximum display resolutions supported by Atom x5-E3940 and Pentium Gold G5420T integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
Graphics API support
APIs supported by Atom x5-E3940 and Pentium Gold G5420T integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Atom x5-E3940 and Pentium Gold G5420T.
| PCIe version | 2.0 | 3.0 |
| PCI Express lanes | 4 | 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.
Pros & cons summary
| Performance score | 1.23 | 2.15 |
| Integrated graphics card | 0.77 | 1.89 |
| Recency | 30 August 2014 | 23 April 2019 |
| Physical cores | 4 | 2 |
| Power consumption (TDP) | 10 Watt | 35 Watt |
Atom x5-E3940 has 100% more physical cores, and 250% lower power consumption.
Pentium Gold G5420T, on the other hand, has a 74.8% higher aggregate performance score, 145.5% faster integrated GPU, and an age advantage of 4 years.
The Pentium Gold G5420T is our recommended choice as it beats the Atom x5-E3940 in performance tests.
Be aware that Atom x5-E3940 is a notebook processor while Pentium Gold G5420T is a desktop one.
Should you still have questions on choice between Atom x5-E3940 and Pentium Gold G5420T, 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.
