Xeon 676X vs Atom C3538
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2655 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.04 | no data |
| Market segment | Server | Server |
| Series | Intel Atom | no data |
| Power efficiency | 3.07 | no data |
| Designer | Intel | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Goldmont (2016−2017) | Granite Rapids (2024−2026) |
| Release date | 15 August 2017 (8 years ago) | 2 February 2026 (recently) |
| Launch price (MSRP) | $75 | $2,499 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Atom C3538 and Xeon 676X 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) | 32 (Dotriaconta-Core) |
| Performance-cores | no data | 32 |
| Threads | 4 | 64 |
| Base clock speed | 2.1 GHz | 2.8 GHz |
| Boost clock speed | 2.1 GHz | 4.9 GHz |
| Bus rate | no data | 0 GT/s |
| Multiplier | 21 | no data |
| L1 cache | 224 KB | 112 KB (per core) |
| L2 cache | 8 MB | 2 MB (per core) |
| L3 cache | 8 MB | 144 MB (shared) |
| Chip lithography | 14 nm | Intel 3 nm |
| Die size | no data | 2x 598 mm2 |
| Maximum core temperature | 87 °C | no data |
| Maximum case temperature (TCase) | no data | 78 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Atom C3538 and Xeon 676X 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 | FCBGA1310 | FCLGA4710 |
| Power consumption (TDP) | 15 Watt | 275 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom C3538 and Xeon 676X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | + | no data |
| Speed Shift | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| TSX | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Atom C3538 and Xeon 676X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | + | + |
| Secure Boot | + | no data |
| SGX | - | - |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom C3538 and Xeon 676X are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom C3538 and Xeon 676X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4: 2133 | DDR5(6400MT/s)MRDIMM(8000MT/s) |
| Maximum memory size | 256 GB | 4 TB |
| Max memory channels | 2 | 8 |
| Maximum memory bandwidth | 29.871 GB/s | no data |
| ECC memory support | + | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Atom C3538 and Xeon 676X.
| PCIe version | 3 | 5.0 |
| PCI Express lanes | 12 | 128 |
| USB revision | 3 | no data |
| Total number of SATA ports | 12 | no data |
| Number of USB ports | 8 | no data |
| Integrated LAN | 2x10/2.5/1 GBE + 2x2.5/1 GBE | no data |
Pros & cons summary
| Recency | 15 August 2017 | 2 February 2026 |
| Physical cores | 4 | 32 |
| Threads | 4 | 64 |
| Power consumption (TDP) | 15 Watt | 275 Watt |
Atom C3538 has 1733.3% lower power consumption.
Xeon 676X, on the other hand, has an age advantage of 8 years, and 700% more physical cores and 1500% more threads.
We couldn't decide between Intel Atom C3538 and Intel Xeon 676X. We've got no test results to judge.
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