Xeon 6726P-B vs Atom E3815
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3548 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | Atom | no data |
| Power efficiency | 0.93 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Bay Trail-I (2013) | Granite Rapids (2024−2025) |
| Release date | 8 October 2013 (11 years ago) | 24 February 2025 (less than a year ago) |
| Launch price (MSRP) | $134 | $3,795 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Atom E3815 and Xeon 6726P-B 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 | 1 (Single-Core) | 42 |
| Performance-cores | no data | 42 |
| Threads | 1 | 84 |
| Base clock speed | no data | 2.3 GHz |
| Boost clock speed | 1.47 GHz | 3.5 GHz |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 512 KB (per core) | 2 MB (per core) |
| L3 cache | 0 KB | 168 MB (shared) |
| Chip lithography | 22 nm | Intel 3 nm |
| Die size | no data | 598 mm2 |
| Maximum case temperature (TCase) | no data | 85 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Atom E3815 and Xeon 6726P-B 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 | 2 |
| Socket | Intel BGA1170 | FCBGA4368 |
| Power consumption (TDP) | 5 Watt | 235 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom E3815 and Xeon 6726P-B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | - |
| QuickAssist | no data | + |
| Speed Shift | no data | - |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
Atom E3815 and Xeon 6726P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom E3815 and Xeon 6726P-B are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom E3815 and Xeon 6726P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
| Maximum memory size | no data | 1.13 TB |
| Max memory channels | no data | 4 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics | N/A |
Peripherals
Specifications and connection of peripherals supported by Atom E3815 and Xeon 6726P-B.
| PCIe version | no data | Gen 4, Gen 5 |
| PCI Express lanes | no data | 48 |
| Integrated LAN | no data | + |
Pros & cons summary
| Recency | 8 October 2013 | 24 February 2025 |
| Physical cores | 1 | 42 |
| Threads | 1 | 84 |
| Power consumption (TDP) | 5 Watt | 235 Watt |
Atom E3815 has 4600% lower power consumption.
Xeon 6726P-B, on the other hand, has an age advantage of 11 years, and 4100% more physical cores and 8300% more threads.
We couldn't decide between Intel Atom E3815 and Intel Xeon 6726P-B. We've got no test results to judge.
Be aware that Atom E3815 is a notebook processor while Xeon 6726P-B is a server/workstation one.
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