Pentium Gold G6405T vs Atom C3958
Aggregate performance score
Atom C3958 outperforms Pentium Gold G6405T by a significant 28% based on our aggregate benchmark results.
Primary details
Comparing Atom C3958 and Pentium Gold G6405T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1633 | 1796 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.54 | no data |
| Market segment | Server | Desktop processor |
| Series | Intel Atom | no data |
| Architecture codename | Goldmont (2016−2017) | Comet Lake-R (2021) |
| Release date | 15 August 2017 (6 years ago) | 16 March 2021 (3 years ago) |
| Launch price (MSRP) | $449 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Atom C3958 and Pentium Gold G6405T 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 | 16 (Hexadeca-Core) | 2 (Dual-core) |
| Threads | 16 | 4 |
| Base clock speed | no data | 3.5 GHz |
| Boost clock speed | 2 GHz | 3.5 GHz |
| L1 cache | 896 KB | 64 KB (per core) |
| L2 cache | 16 MB | 256 KB (per core) |
| L3 cache | no data | 4 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Maximum core temperature | 83 °C | no data |
| Maximum case temperature (TCase) | no data | 72 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Atom C3958 and Pentium Gold G6405T 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 | no data | 1200 |
| Power consumption (TDP) | 31 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom C3958 and Pentium Gold G6405T. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | no data | + |
Security technologies
Atom C3958 and Pentium Gold G6405T technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom C3958 and Pentium Gold G6405T are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom C3958 and Pentium Gold G6405T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3L-1600 | DDR4-2666 |
| Maximum memory size | 256 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 38.397 GB/s | 41.6 GB/s |
| ECC memory support | + | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics 610 |
Peripherals
Specifications and connection of peripherals supported by Atom C3958 and Pentium Gold G6405T.
| PCIe version | no data | 3.0 |
| PCI Express lanes | 16 | 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.
Atom C3958 outperforms Pentium Gold G6405T by 28% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
Atom C3958 outperforms Pentium Gold G6405T by 28% in Passmark.
Pros & cons summary
| Performance score | 2.77 | 2.16 |
| Recency | 15 August 2017 | 16 March 2021 |
| Physical cores | 16 | 2 |
| Threads | 16 | 4 |
| Power consumption (TDP) | 31 Watt | 35 Watt |
Atom C3958 has a 28.2% higher aggregate performance score, 700% more physical cores and 300% more threads, and 12.9% lower power consumption.
Pentium Gold G6405T, on the other hand, has an age advantage of 3 years.
The Atom C3958 is our recommended choice as it beats the Pentium Gold G6405T in performance tests.
Be aware that Atom C3958 is a server/workstation processor while Pentium Gold G6405T is a desktop one.
Should you still have questions on choice between Atom C3958 and Pentium Gold G6405T, ask them in Comments section, and we shall answer.
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